Busy Year of 13 Launches by ULA in 2015 Begins with Blastoffs for the Navy and NASA

MUOS-3 communications satellite for the US Navy awaits launch atop an Atlas V rocket at pad 41 at Cape Canaveral Air Force Station, FL on Jan. 20, 2015. Credit: John Studwell/AmericaSpace

A busy year of 13 space launches by rocket provider United Launch Alliance (ULA) in 2015 begins with a pair of blastoffs for the US Navy and NASA tonight and next week, emanating from both the US East and West Coasts.

The hefty manifest of 13 liftoffs in 2015 comes hot on the heels of ULA’s banner year in 2014 whereby they completed every one of the firm’s 14 planned launches in 2014 with a 100% success rate.

“What ULA has accomplished in 2014, in support of our customers’ missions, is nothing short of remarkable,” said ULA CEO Tory Bruno.

“When you think about every detail – all of the science, all of the planning, all of the resources – that goes into a single launch, it is hard to believe that we successfully did it at a rate of about once a month, sometimes twice.”

ULA’s stable of launchers includes the Delta II, Delta IV and the Atlas V. They are in direct competition with the Falcon 9 rocket from SpaceX founded by billionaire Elon Musk.

And ULA’s 2015 launch calendar begins tonight with a milestone launch for the US Navy that also marks the 200th launch overall of the venerable Atlas-Centaur rocket that has a renowned history dating back some 52 years to 1962 with multiple variations.

And tonight’s blastoff of the Multi-User Objective System (MUOS-3) satellite for the US Navy involves using the most powerful variant of the rocket, known as the Atlas V 551.

Liftoff of MUOS-3 is set for 7:43 p.m. EDT from Space Launch Complex-41 at Cape Canaveral Air Force Station in Florida. The launch window extends for 44 minutes and the weather outlook is very favorable. It will be carried live on a ULA webcast.

MUOS-3 Navy communications satellite and Atlas V rocket at pad 41 at Cape Canaveral Air Force Station, FL for launch on Jan. 20, 2015. Credit: ULA
MUOS-3 Navy communications satellite and Atlas V rocket at pad 41 at Cape Canaveral Air Force Station, FL for launch on Jan. 20, 2015. Credit: ULA

The second ULA launch of 2015 comes just over 1 week later on January 29, lofting NASA’s SMAP Earth observation satellite on a Delta II rocket from Vandenberg Air Force Base in California.

MUOS is a next-generation narrowband tactical satellite communications system designed to significantly improve ground communications for U.S. forces on the move, according to ULA.

This is the third satellite in the MUOS series and will provide military users 10 times more communications capability over existing systems, including simultaneous voice, video and data, leveraging 3G mobile communications technology.

ULA’s second launch in 2015 thunders aloft from the US West Coast with NASA’s Soil Moisture Active Passive mission (SMAP). It is the first US Earth-observing satellite designed to collect global observations of surface soil moisture.

SMAP will blastoff from Space Launch Complex 2 at Vandenberg AFB at 9:20 a.m. EST (6:20 a.m. PST) on ULA’s Delta II rocket.

NASA's Soil Moisture Active Passive mission (SMAP) will lift off from Space Launch Complex 2 at Vandenberg Air Force Base in California at 9:20 a.m. EST (6:20 a.m. PST) on a United Launch Alliance Delta II rocket.   Credit:  NASA
NASA’s Soil Moisture Active Passive mission (SMAP) will lift off from Space Launch Complex 2 at Vandenberg Air Force Base in California at 9:20 a.m. EST (6:20 a.m. PST) on a United Launch Alliance Delta II rocket. Credit: NASA

“It goes without saying: ULA had a banner year,” Bruno said. “As we look ahead to 2015, we could not be more honored to continue supporting our nation in one of the most technologically complex, critical American needs: affordable, reliable access to space.”

ULA began operations in December 2006 with the merger of the expendable launch vehicle operations of Boeing and Lockheed Martin.

ULA’s Delta IV Heavy is currently the world’s most powerful rocket and flawlessly launched NASA’s Orion capsule on Dec. 5, 2014 on its highly successful uncrewed maiden test flight on the EFT-1 mission.

Overall, the 14-mission launch manifest in 2014 included 9 national security space missions, 3 space exploration missions, including NASA’s Orion EFT-1 and 2 commercial missions.

NASA’s first Orion spacecraft blasts off at 7:05 a.m. atop United Launch Alliance Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida on Dec. 5, 2014.   Launch pad remote camera view.   Credit: Ken Kremer - kenkremer.com
NASA’s first Orion spacecraft blasts off at 7:05 a.m. atop United Launch Alliance Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida on Dec. 5, 2014. Launch pad remote camera view. Credit: Ken Kremer – kenkremer.com

Beyond MUOS-3 and SMAP, the launch manifest on tap for 2015 also includes additional NASA science satellites, an ISS commercial cargo resupply mission as well as more GPS satellites for military and civilian uses and top secret national security launches using the Delta II, Delta IV and the Atlas V boosters.

NASA’s Magnetospheric Multiscale Mission (MMS) to study Earth’s magnetic reconnection is scheduled for launch on an Atlas V 421 booster on March 12 from Cape Canaveral. See my up close visit with MMS and NASA Administrator Charles Bolden at NASA Goddard Space Flight Center detailed in my story – here.

NASA Administrator Charles Bolden poses with the agency’s Magnetospheric Multiscale (MMS) spacecraft, mission personnel, Goddard Center Director Chris Scolese and NASA Associate Administrator John Grunsfeld, during visit to the cleanroom at NASA's Goddard Space Flight Center in Greenbelt, Md., on May 12, 2014.  Credit: Ken Kremer- kenkremer.com
NASA Administrator Charles Bolden poses with the agency’s Magnetospheric Multiscale (MMS) spacecraft, mission personnel, Goddard Center Director Chris Scolese and NASA Associate Administrator John Grunsfeld, during visit to the cleanroom at NASA’s Goddard Space Flight Center in Greenbelt, Md., on May 12, 2014. Credit: Ken Kremer- kenkremer.com

In March, June and September the GPS 2F-9, 2F-10 and 2F-11 navigation satellites will launch on Delta IV and Atlas V rockets from Cape Canaveral.

Two top secret NRO satellites are set to launch on a Delta IV and Atlas in April and August from Vandenberg.

An Air Force Orbital Test Vehicle (OTV) space plane may launch as soon as May atop an Atlas V from Cape Canaveral.

The MUOS-4 liftoff is set for August on another Atlas from the Cape.

The Morelos 3 communications satellite for the Mexican Ministry of Communications and Transportation is due to launch in October from the Cape.

In November, the Atlas V will be pressed into service for the first time to launch the Orbital Sciences Cygnus Orb-4 cargo vehicle to the International Space Station (ISS) as a replacement rocket for the Orbital Sciences Antares rocket which is grounded following its catastrophic Oct. 28 explosion on the Orb-3 mission from NASA Wallops.

This Cygnus launched atop Antares on Jan. 9 and docked on Jan. 12   Cygnus pressurized cargo module – side view – during exclusive visit by  Ken Kremer/Universe Today to observe prelaunch processing by Orbital Sciences at NASA Wallops, VA. ISS astronauts will open this hatch to unload 2780 pounds of cargo.  Docking mechanism hooks and latches to ISS at left. Credit: Ken Kremer – kenkremer.com
This Cygnus launched atop Antares on Jan. 9, 2014. The next Cygnus Orb-4 will launch for the first time atop an Atlas V in Nov. 2015. Cygnus pressurized cargo module – side view – during exclusive visit by Ken Kremer/Universe Today to observe prelaunch processing by Orbital Sciences at NASA Wallops, VA. ISS astronauts will open this hatch to unload 2780 pounds of cargo. Docking mechanism hooks and latches to ISS at left. Credit: Ken Kremer – kenkremer.com

The Orb-4 launch also marks ULA’s first launch to the ISS. It may be followed by another Cygnus launch atop an Atlas V in 2016 as Orbital works to bring the Antares back into service.

Antares doomed descent to incendiary destruction after first stage propulsion system of Orbital Sciences’ rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014. Credit: Ken Kremer – kenkremer.com
Antares doomed descent to incendiary destruction after first stage propulsion system of Orbital Sciences’ rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014. Credit: Ken Kremer – kenkremer.com

In another major milestone down the road, the Atlas V is being man rated since it was chosen to launch the Boeing CST-100 space taxi which NASA selected as one of two new commercial crew vehicles to launch US astronauts to the ISS as soon as 2017.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

SpaceX Could Launch 17 Rockets in 2015, Including the Most Powerful Rocket Since Saturn V

With over 3.8 million pounds of thrust at liftoff, Falcon Heavy will be the most capable rocket flying. By comparison, the liftoff thrust of the Falcon Heavy equals fifteen Boeing 747 aircraft at full power. Credit: SpaceX

If all goes as hoped, SpaceX will have a very busy 2015. The commercial space company could launch as many as 17 rockets, including a mid-flight test abort of the Dragon capsule to demonstrate its in-flight crew escape system. Then there’s the launch that every rocket aficionado one has been waiting for: the demonstration mission of the 27-engine Falcon Heavy rocket.

Already, SpaceX has launched one mission in 2015, the CRS-5 Dragon resupply mission for the International Space Station that was delayed from December 2014. In addition to successfully hooking up with the ISS, SpaceX also tested out a flyback and landing system for the Falcon 9 first stage, which was deemed “mostly successful” despite a spectacular explosion when it careened off the target, a floating ocean barge. The next test of the landing system will occur with the launch of the solar wind monitoring DSCOVR satellite, which has just been delayed slightly to February 9.

While SpaceX itself does not list upcoming launch dates on its own website, a site put together by SpaceX enthusiast Lukas Davia called SpaceXStats has garnered a list of potential launch dates from NASA and other customers, and they say up to 16 more launches could take place this year. SpaceX will be launching more space station resupply missions, commercial satellite launch missions, and US government science and national security missions.

Delays like the recently announced launch delay for DSCOVR, will greatly impact how many launches SpaceX will be able to conduct this year. Musk has said his company could launch about one rocket per month during 2015, while other sources predict 10-12 launches for the commercial company.

A SpaceX Falcon 9 rocket carrying a Dragon cargo capsule packed with science experiments and station supplies blasts off from Space Launch Complex 40 at Cape Canaveral Air Force Station, Florida, on Sept. 21, 2014 bound for the ISS.  Credit: Ken Kremer/kenkremer.com
A SpaceX Falcon 9 rocket carrying a Dragon cargo capsule packed with science experiments and station supplies blasts off from Space Launch Complex 40 at Cape Canaveral Air Force Station, Florida, on Sept. 21, 2014 bound for the ISS. Credit: Ken Kremer/kenkremer.com

As reported in Spaceflightnow.com, SpaceX had a similar number of flights on its docket in 2014, including the Falcon Heavy’s debut launch and the Dragon abort tests, which has slipped to be on the launch manifest for 2015. Six Falcon 9 rockets ended up blasting off last year.

Most of the missions will take off from Cape Canaveral’s launch complex, where up to 24 launches could take place this year. Along with the launches from SpaceX, United Launch Alliance has launches schedule for satellites for the U.S. military, NASA and commercial companies.

Video: Falcon Heavy

The Falcon Heavy was originally scheduled for its first test flight in late 2012 or early 2013 from Vandenberg Air Force Base, California, but it now will launch from the refurbished pads at Cape Canaveral. SpaceX says this rocket was designed from the outset to carry humans into space and “restores the possibility of flying missions with crew to the Moon or Mars.”

The Falcon Heavy will lift over 53 metric tons (117,000 lb) to orbit, about three times the performance of the Falcon 9. It is comprised of three nine-engine Falcon 9 first stage booster cores and uses upgraded Merlin 1D engines.

Here’s a sampling of launches from SpaceXStats, see the full list here.

9 Feb 2015 DSCOVR NOAA Falcon 9 v1.1 SLC-40, Florida
17 Feb 2015 Eutelsat 115W B & ABS-3A Asia Broadcast Satellite Falcon 9 v1.1 SLC-40, Florida
March 2015 Dragon Inflight Abort SpaceX / NASA Falcon 9 v1.1 SLC-4E, Vandenberg, California
8 Apr 2015 SpaceX CRS-6 NASA Falcon 9 v1.1 SLC-40, Florida
H1 2015 Falcon Heavy Test Flight SpaceX Falcon Heavy LC-39A, Florida

Video: SpaceX’s Year in Review, 2014:

Elon Musk Releases Dramatic Imagery of Mostly Successful Falcon 9 1st Recovery Attempt, Hard Landing on Drone Ship

Rocket hits hard at ~45 deg angle, smashing legs and engine section. Credit: SpaceX/Elon Musk

Rocket hits hard at ~45 deg angle, smashing legs and engine section. Credit: SpaceX/Elon Musk
See video below[/caption]

Dramatic new photos and video of the daring and mostly successful attempt by Space X to land their Falcon 9 booster on an ocean-going “drone ship” were released this morning, Friday, Jan. 16, by SpaceX CEO and founder Elon Musk.

Musk posted the imagery online via his twitter account and they vividly show just how close his team came to achieving total success in history’s first attempt to land and recover a rocket on a tiny platform in the ocean.

Here’s the video: “Close, but no cigar. This time.”

The rocket landing and recovery attempt was a secondary objective of SpaceX, that immediately followed the spectacular nighttime blastoff of the Falcon 9 on Jan. 10 carrying the SpaceX Dragon cargo freighter spacecraft on a critical resupply mission for NASA bound for the space station.

The history making attempt at recovering the Falcon 9 first stage was a first of its kind experiment to accomplish a pinpoint soft landing of a rocket onto a miniscule platform at sea using a rocket assisted descent by the first stage Merlin engines aided by steering fins.

The first stage rocket reached an altitude of over 100 miles after firing nine Merlins as planned for nearly three minutes. It had to be slowed from traveling at a velocity of about 2,900 mph (1300 m/s). The descent maneuver has been likened to someone balancing a rubber broomstick on their hand in the middle of a fierce wind storm.

The imagery shows the last moments of the descent as the rocket hits the edge of the drone ship at a 45 degree angle with its four landing legs extended and Merlin 1D engines firing.

Before impact, fins lose power and go hardover. Engines fights to restore, but … Credit: SpaceX/Elon Musk
Before impact, fins lose power and go hardover. Engines fights to restore, but … Credit: SpaceX/Elon Musk

Musk tweeted that the first stage Falcon 9 booster ran out of hydraulic fluid and thus hit the barge.

“Rocket hits hard at ~45 deg angle, smashing legs and engine section,” Musk explained today.

Lacking hydraulic fluid the boosters attached steering fins lost power just before impact.

“Before impact, fins lose power and go hardover. Engines fights to restore, but …,” Musk added.

Residual fuel and oxygen combine.  Credit: SpaceX/Elon MuskSpaceX/Elon Musk
Residual fuel and oxygen combine. Credit: SpaceX/Elon MuskSpaceX/Elon Musk

This ultimately caused the Falcon 9 to crash land as the legs and engine section were smashed and destroyed as the fuel and booster burst into flames. The ship survived no problem.

“Residual fuel and oxygen combine.”

“Full RUD (rapid unscheduled disassembly) event. Ship is fine minor repairs. Exciting day!” said Musk.

“Rocket made it to drone spaceport ship, but landed hard. Close, but no cigar this time. Bodes well for the future tho,” Musk tweeted within hours after the launch and recovery attempt.

As I wrote on launch day here at Universe Today, despite making a ‘hard landing’ on the vessel dubbed the ‘autonomous spaceport drone ship,’ the 14 story tall Falcon 9 first stage did make it to the drone ship, positioned some 200 miles offshore of the Florida-Carolina coast, northeast of the launch site in the Atlantic Ocean. The rocket broke into pieces upon hitting the barge.

Whereas virtually every other news outlet quickly declared the landing attempt a “Failure” in the headline, my assessment as a scientist and journalist was the complete opposite!!

In my opinion the experiment was “a very good first step towards the bold company goal of recovery and re-usability in the future” as I wrote in my post launch report here at Universe Today.

Listen to my live radio interview with BBC 5LIVE conducted Saturday night (Jan. 11 UK time), discussing SpaceX’s first attempt to land and return their Falcon-9 booster.

“Is it safe? Was SpaceX brave or foolhardy? Why is this significant? Will SpaceX succeed in the future?” the BBC host asked me.

I replied; “It was a 99% success” and more …..

“Am super proud of my crew for making huge strides towards reusability on this mission. You guys rock!” Musk declared in a later tweet.

SpaceX achieved virtually all of their objectives in the daunting feat except for a soft landing on the drone ship.

This was a bold experiment involving re-lighting one of the first stage Merlin 1D engines three times to act as a retro rocket to slow the stages descent and aim for the drone ship.

Four attached hypersonic grid fins and a trio of Merlin propulsive burns succeeded in slowing the booster from hypersonic velocity to subsonic and guiding it to the ship.

The drone ship measures only 300 feet by 170 feet. That’s tiny compared to the Atlantic Ocean.

The first stage was planned to make the soft landing by extending four landing legs to a width of about 70 feet to achieve an upright landing on the platform with a accuracy of 30 feet (10 meters).

No one has ever tried such a landing attempt before in the ocean says SpaceX. The company has conducted numerous successful soft landing tests on land. And several soft touchdowns on the ocean’s surface. But never before on a barge in the ocean.

So they will learn and move forward to the next experimental landing, that could come as early as a few weeks on the launch of the DSCOVR mission in late January or early February.

“Upcoming flight already has 50% more hydraulic fluid, so should have plenty of margin for landing attempt next month.”

Full RUD (rapid unscheduled disassembly) event. Ship is fine minor repairs. Exciting day! Credit: SpaceX/Elon Musk
Full RUD (rapid unscheduled disassembly) event. Ship is fine minor repairs. Exciting day! Credit: SpaceX/Elon Musk

Musk’s daring vision is to recover, refurbish and reuse the first stage and dramatically reduce the high cost of access to space, by introducing airline like operational concepts.

It remains to be seen whether his vision of reusing rockets can be made economical. Most of the space shuttle systems were reused, except for the huge external fuel tanks, but it was not a cheap proposition.

But we must try to cut rocket launch costs if we hope to achieve routine and affordable access to the high frontier and expand humanity’s reach to the stars.

The Falcon 9 launch itself was a flawless success, blasting off at 4:47 a.m. EST on Jan. 10 from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

The Dragon CRS-5 spacecraft was loaded with over 5108 pounds (2317 kg) of scientific experiments, technology demonstrations, the CATS science payload, student research investigations, crew supplies, spare parts, food, water, clothing and assorted research gear for the six person crew serving aboard the ISS.

It successfully rendezvoused at the station on Jan. 12 after a two day orbital chase, delivering the critical cargo required to keep the station stocked and humming with science.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

SpaceX founder and CEO Elon Musk briefs reporters, including Universe Today, in Cocoa Beach, FL, during prior SpaceX Falcon 9 rocket blastoff from Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com
SpaceX founder and CEO Elon Musk briefs reporters, including Universe Today, in Cocoa Beach, FL, during prior SpaceX Falcon 9 rocket blastoff from Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com

SpaceX Dragon Captured at Station Loaded with Critical Supplies and Science

The Canadarm2 has the SpaceX Dragon in its grips on Jan 12, 2015. Credit: NASA TV

The commercial SpaceX cargo Dragon, loaded with over 2.6 tons of critically needed supplies and science experiments, was captured by the crew aboard the International Space Station (ISS) this morning (Jan. 12) while soaring over the Mediterranean Sea.

The SpaceX Dragon CRS-5 cargo vessel arrived at the station following a flawless two day orbital pursuit and spectacular nighttime blastoff atop the SpaceX Falcon 9 on Jan. 10 at 4:47 a.m. EST from Cape Canaveral Air Force Station in Florida.

Note: This breaking news story is being updated. Check back frequently for updates.

Dragon was successfully berthed and bolted into place a few hours later at 8:54 a.m. EST.

Working at the robotics work station inside the seven windowed domed cupola, Expedition 42 Commander Barry “Butch” Wilmore of NASA, with the assistance of Flight Engineer Samantha Cristoforetti of the European Space Agency, successfully captured the Dragon spacecraft with the station’s Canadian-built robotic arm at 5:54 a.m. EST.

Wilmore grappled Dragon with the station’s 57-foot-long (17-meter-long) robotic arm at 5:54 a.m. EST, about 18 minutes ahead of schedule, in an operation shown live on NASA TV, back-dropped by breathtaking views of “our beautiful Earth” passing by some 260 miles (410 kilometers) below.

Among the goodies aboard are belated Christmas presents for the crew. The Falcon 9 and Dragon were originally scheduled to liftoff in December and arrive in time for the Christmas festivities.

The cargo freighter flew beneath the station to arrive at the capture point 32 feet (10 meters) away. Dragon’s thrusters were disabled at the time of grappling.

Robotics officers at Houston Mission Control then began remotely maneuvering the arm to berth Dragon at the Earth-facing port on the station’s Harmony module starting at 7:45 a.m. EST.

Dragon is being attached via the common berthing mechanism (CBM) using four gangs of four bolts apiece to accomplish a hard mate to Harmony. The overall grappling and berthing process requires a few hours.

Dragon was successfully berthed and bolted into place at 8:54 a.m. EST and its now part of the space station.

The crew will conduct leak pressure checks, remove the docking mechanism and open the hatch later today or tomorrow.

#Dragon is about 90 feet from #ISS, closing in on its capture point.  Credit: NASA TV
#Dragon is about 90 feet from #ISS, closing in on its capture point. Credit: NASA TV

CRS-5 marks the company’s fifth operational resupply mission to the ISS under a $1.6 Billion contract with NASA to deliver 20,000 kg (44,000 pounds) of cargo to the station during a dozen Dragon cargo spacecraft flights through 2016 under NASA’s Commercial Resupply Services (CRS) contract.

Overall this is the sixth Dragon to arrive at the ISS.

The ISS cannot function without regular deliveries of fresh cargo by station partners from Earth.

The Dragon CRS-5 spacecraft is loaded with over 5108 pounds (2317 kg) of scientific experiments, technology demonstrations, crew supplies, spare parts, food, water, clothing, and assorted research gear for the six person crew serving aboard the ISS.

Among the payloads is the Cloud-Aerosol Transport System (CATS), a remote-sensing laser instrument to measure clouds and the location and distribution of pollution, dust, smoke, and other particulates and aerosols in the atmosphere that directly impact the global climate.

CATS is loaded aboard the unpressurized trunk of Dragon.

Also loaded onboard are 17 student experiments known collectively as the “Yankee Clipper” mission. The experiments are sponsored by the National Center for Earth and Space Science Education, which oversees the Student Spaceflight Experiments Program (SSEP) in partnership with NanoRacks LLC.

The launch marked the first US commercial resupply launch since the catastrophic destruction of an Orbital Sciences Antares rocket and Cygnus Orb-3 spacecraft bound for the ISS which exploded unexpectedly after launch from NASA Wallops, VA, on Oct. 28, 2014.

The US supply train to the ISS is now wholly dependent on SpaceX until Cygnus flights are resumed, hopefully by late 2015, on an alternate rocket, the Atlas V.

SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station, Fl, carrying the Dragon resupply spacecraft to the International Space Station.   Credit: John Studwell/AmericaSpace
SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station, FL, carrying the Dragon resupply spacecraft to the International Space Station. Credit: John Studwell/AmericaSpace

Dragon will remain attached to the ISS for about four weeks until Feb. 10.

SpaceX also had a secondary objective of recovering the Falcon 9 booster’s first stage via an unprecedented precision guided landing on an ocean-going “drone.”

The history making attempt at recovering the Falcon 9 first stage was a first of its kind experiment to accomplish a pinpoint soft landing of a rocket onto a tiny platform in the middle of a vast ocean using a rocket assisted descent.

In my opinion the experiment was “a very good first step towards the bold company goal of recovery and re-usability in the future” as I wrote in my post launch report here at Universe Today.

Listen to my live radio interview with BBC 5LIVE conducted Saturday night, discussing SpaceX’s first attempt to land and return their Falcon-9 booster.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

The SpaceX Dragon is attached to the Harmony module. Credit: NASA TV
The SpaceX Dragon is attached to the Harmony module. Credit: NASA TV

Huge Rocket Recovery Strides Accomplished, SpaceX Drone Ship Back in Port

SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station, Fl, carrying the Dragon resupply spacecraft to the International Space Station. Credit: John Studwell/AmericaSpace

“Huge strides towards [rocket] reusability” were achieved, says SpaceX CEO Elon Musk, following Saturday morning’s (Jan. 10) flawless launch of his firm’s Falcon 9 rocket on a critical resupply mission to the space station for NASA, which also had a secondary objective of recovering the booster’s first stage via an unprecedented precision-guided landing on an ocean-going “drone.”

Despite making a “hard landing” on the vessel dubbed the “autonomous spaceport drone ship,” the 14 story tall Falcon 9 first stage did make it to the drone ship, positioned some 200 miles offshore of the Florida-Carolina coast, northeast of the launch site in the Atlantic Ocean. The rocket broke into pieces upon hitting the barge.

“Rocket made it to drone spaceport ship, but landed hard. Close, but no cigar this time. Bodes well for the future tho,” Musk tweeted soon after the launch and recovery attempt.

The drone ship, along with pieces of the rocket, was towed back to the Port of Jacksonville, FL, this afternoon, Sunday, Jan. 11. Photos captured by locals, and posted today on Reddit, NASASpaceflight and Spaceflight Now, showed the ship was intact with some damage, as reported by Musk.

The SpaceX ‘autonomous spaceport drone ship’ being towed into the Port of Jacksonville, Fla, on 11 Jan 2015 with possible pieces of the SpaceX Falcon 9 first stage under tarps.
The SpaceX “autonomous spaceport drone ship” being towed into the Port of Jacksonville, FL, on 11 Jan 2015 with possible pieces of the SpaceX Falcon 9 first stage under tarps. Credit: Stephen Clark/Spaceflight Now

The goal of the commercial Falcon 9 rocket was to launch the SpaceX Dragon CRS-5 cargo vessel on a mission bound for the International Space Station (ISS). It lit up the night skies all around the Florida Space Coast following a flawless liftoff at 4:47 a.m. EST from Cape Canaveral Air Force Station.

After a two day chase, Dragon will reach the ISS at about 6:12 a.m. EST on Monday, Jan. 12. NASA TV live coverage starts at 4:30 a.m. EST.

The history-making attempt at recovering the Falcon 9 first stage was a first of its kind experiment to accomplish a pinpoint soft landing of a rocket onto a tiny platform in the middle of a vast ocean using a rocket assisted descent.

“Am super proud of my crew for making huge strides towards reusability on this mission. You guys rock!” Musk declared in a later tweet.

Whereas virtually every other news outlet declared the landing attempt a “failure” in the headline, my assessment as a scientist is the complete opposite – and that the experiment was “a very good first step towards the bold company goal of recovery and re-usability in the future” as I wrote in my post launch report here at Universe Today.

Listen to my live radio interview with BBC 5LIVE conducted Saturday night, discussing SpaceX’s first attempt to land and return their Falcon 9 booster.

This was a daring experiment involving re-lighting one of the first stage Merlin 1D engines three times to act as a retro rocket to slow the stage’s descent and aim for the drone ship.

The drone ship measures only 300 feet by 170 feet. That’s tiny compared to the Atlantic Ocean.

SpaceX achieved virtually all of their objectives in the daunting feat except for a soft landing on the drone ship.

The grid fins and trio of Merlin propulsive burns succeeded in slowing the booster from hypersonic velocity to subsonic.

The first stage was planned to make the soft landing by extending four landing legs to a width of about 70 feet to achieve an upright landing on the platform.

One of the possible outcomes of today. Falcon 9 sits on the barge, ready to go back home. Image Credit: Reddit user zlsa (zlsa.github.io) CC-BY-SA.
Artist’s concept view of Falcon 9 on the barge, ready to go back home. Image Credit: Reddit user zlsa (zlsa.github.io) CC-BY-SA.

The hard landing apparently was caused by a lack of hydraulic fluid in the final stages of the landing

“Grid fins worked extremely well from hypersonic velocity to subsonic, but ran out of hydraulic fluid right before landing,” Musk tweeted.

No one has ever tried such a landing attempt before in the ocean says SpaceX. The company has conducted numerous successful soft landing tests on land, and several soft touchdowns on the ocean’s surface. But never before on a barge in the ocean.

So they will learn and move forward to the next experimental landing, that could come as early as February.

“Upcoming flight already has 50% more hydraulic fluid, so should have plenty of margin for landing attempt next month.”

SpaceX founder and CEO Elon Musk briefs reporters including Universe Today in Cocoa Beach, FL prior to SpaceX Falcon 9 rocket blastoff with SES-8 communications satellite on Dec 3, 2013 from Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com
SpaceX founder and CEO Elon Musk briefs reporters, including Universe Today, in Cocoa Beach, FL, during prior SpaceX Falcon 9 rocket blastoff from Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com

Musk’s daring vision is to recover, refurbish, and reuse the first stage and dramatically reduce the high cost of access to space by introducing airline like operational concepts.

It remains to be seen whether his vision of reusing rockets can be made economical. Most of the space shuttle systems were reused, except for the huge external fuel tanks, but it was not a cheap proposition.

So this ocean recovery attempt is a critical first step towards that long term effort.

The Dragon CRS-5 spacecraft is loaded with over 5108 pounds (2317 kg) of scientific experiments, technology demonstrations, crew supplies, spare parts, food, water, clothing, and assorted research gear for the six person crew serving aboard the ISS.

Photo of returning SpaceX ‘autonomous spaceport drone ship’ shows possible damage to onboard gear and possibly a few rocket parts under tarps.  Credit: Reddit
Photo of returning SpaceX “autonomous spaceport drone ship” shows possible damage to onboard gear and possibly a few rocket parts under tarps. Credit: Reddit

The launch marked the first US commercial resupply launch since the catastrophic destruction of an Orbital Sciences Antares rocket and Cygnus Orb-3 spacecraft bound for the ISS which exploded unexpectedly after launch from NASA Wallops, VA, on Oct. 28, 2014.

The US supply train to the ISS is now wholly dependent on SpaceX until Cygnus flights are resumed, hopefully by late 2015 on an alternate rocket, the Atlas V.

Orbital Sciences Antares rocket explodes moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. Credit: Ken Kremer – kenkremer.com
Orbital Sciences Antares rocket explodes moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. Credit: Ken Kremer – kenkremer.com

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

A SpaceX Falcon 9 Grasshopper reusable rocket undergoing testing. Credit: SpaceX
A SpaceX Falcon 9 Grasshopper reusable rocket undergoing testing.
Credit: SpaceX
A Falcon 9 Grasshopper conducting VTVL testing. Credit: SpaceX
A Falcon 9 Grasshopper conducting VTVL testing. Credit: SpaceX

Last Minute Scrub for SpaceX Dragon Launch; Try Again Friday for Historic 1st Stage Landing

Falcon 9 and Dragon on the launchpad Cape Canaveral Air Force Station in Florida. SpaceX will try again on January 9 to launch and attempt an historic first stage landing on a floating ocean platform. Credit: SpaceX.

An actuator that was “behaving strangely” on the SpaceX Falcon 9’s upper stage caused a last minute scrub for Tuesday’s attempt to launch a Dragon capsule to the International Space Station, as well as the first try at an historic first stage landing on a floating platform in the Atlantic Ocean.


SpaceX will try again on Friday, January 9, 2014 at 5:09 a.m. EST. Like today’s attempt, there will be only an instantaneous launch window available, meaning that the blastoff must proceed at that exact instant. Any delays due to technical issues or weather would force further delays.

This is the commercial space company’s fifth resupply mission to the ISS and the unmanned cargo freighter is loaded with more than 5,108 pounds (2317 kg) of scientific experiments, technology demonstrations, crew supplies, spare parts, food, water, clothing and assorted research gear for the space station.

The “experiment” that has attracted the most attention, however, is the attempt to land the first stage of the two-stage rocket on a floating platform in the Atlantic Ocean, approximately 320 km (200 miles) off the coast of Florida.

This is the first attempt at such a landing. SpaceX has conducted numerous successful soft landing tests on land, and done several touchdowns on the ocean’s surface.

Elon Musk has estimated the odds of success at the landing attempt at about 50% at best.

“It’s an experiment,” said Hans Koenigsmann, VP of Mission Assurance at SpaceX, speaking at a media briefing on Jan. 5 at the Kennedy Space Center. “There’s a certain likelihood that this will not work out right, that something will go wrong.” He also added that the landing on the off shore barge is just a secondary objective of SpaceX, not NASA.

Many analysts say a successful landing maneuver would mark a significant step toward making rockets more reusable, which would help cut costs. But others caution that even if this first attempt is successful, we shouldn’t expect to see regular airline-like reuse and large cost drops anytime soon.

SpaceX and NASA On Track For Spectacular Predawn Jan. 6 Launch of Critical Cargo Mission to ISS

A SpaceX Falcon 9 rocket and Dragon cargo ship are set to liftoff on a resupply mission to the International Space Station (ISS) from launch pad 40 at Cape Canaveral, Florida on Jan. 6, 2015. File photo. Credit: Ken Kremer – kenkremer.com

SpaceX is on track to rollout their Falcon 9 rocket carrying the Dragon cargo freighter this evening, Monday, Jan, 5, 2015 to launch pad 40 on a mission bound for the International Space Station (ISS) to deliver critical supplies.

The Dragon CRS-5 mission is slated to blast off at 6:20 a.m. EST, Tuesday, Jan. 6, 2015, atop the SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

The predawn launch should put on a spectacular sky show for spectators along the Florida space coast.

There is only an instantaneous launch window available, meaning that the blastoff must proceed at that exact instant. Any delays due to technical issues or weather would force a scrub until at least Friday, Jan. 9.

SpaceX Falcon 9 ready for rollout to launch pad for Dragon CRS-5 mission.  Credit: SpaceX
SpaceX Falcon 9 ready for rollout to launch pad for Dragon CRS-5 mission. Credit: SpaceX

The launch has already been postponed several times, most recently from Dec. 19, 2014 when a static fire test of the first stage engines on Dec. 17 shut down prematurely.

A second static fire test of the SpaceX Falcon 9 successfully went the full duration of approximately 3 seconds and cleared the path for a liftoff attempt after the Christmas holidays.

The delay allowed the teams to recoup and recover and enjoy the festive holiday season.

“It was a good decision to postpone the launch until after the holidays,” said Hans Koenigsmann, VP of Mission Assurance, SpaceX, at a media briefing today at the Kennedy Space Center (KSC).

Following the catastrophic failure of the Orbital Sciences Antares rocket and Cygnus cargo freighter on Oct. 28 from NASA’s Wallops Flight Facility in Virginia, officials have been prudently cautious to ensure that all measures were carefully rechecked to maximize the possibilities of a launch success.

SpaceX Falcon 9 rocket completes successful static fire test on Dec. 19 ahead od planned CRS-5 mission for NASA in early January 2015. Credit:  SpaceX
SpaceX Falcon 9 rocket completes successful static fire test on Dec. 19 ahead od planned CRS-5 mission for NASA in early January 2015. Credit: SpaceX

CRS-5 marks the company’s fifth resupply mission to the ISS under a $1.6 Billion contract with NASA to deliver 20,000 kg (44,000 pounds) of cargo to the station during a dozen Dragon cargo spacecraft flights through 2016 under NASA’s Commercial Resupply Services (CRS) contract

The weather odds have improved to 70% GO from 60% GO reported Major Perry Sweat, 45th Weather Squadron rep, USAF, at the briefing today at the Kennedy Space Center.

A frontal boundary has settled in over Central Florida. This front and its associated cloudiness will be very slow to move south of the Space Coast. With the clouds only slowly eroding overhead, the primary weather concern remains thick clouds, according to Sweat.

The unmanned cargo freighter is loaded with more than 5108 pounds (2317 kg) of scientific experiments, technology demonstrations, crew supplies, spare parts, food, water, clothing and assorted research gear for the space station.

The Dragon research experiments will support over 256 science and research investigations for the six person space station crews on Expeditions 42 and 43.

Among the payloads is the Cloud-Aerosol Transport System (CATS), a remote-sensing laser instrument to measure clouds and the location and distribution of pollution, dust, smoke, and other particulates and aerosols in the atmosphere.

Commander Barry “Butch” Wilmore on the International Space Station shared this beautiful image of #sunrise earlier today, 1/3/15.  Credit: NASA/Barry ‘Butch’ Wilmore
Commander Barry “Butch” Wilmore on the International Space Station shared this beautiful image of #sunrise earlier today, 1/3/15. Credit: NASA/Barry ‘Butch’ Wilmore

Assuming all goes well, Dragon will rendezvous at the ISS on Thursday, Jan. 8, for grappling and berthing by the ISS astronauts maneuvering the 57 foot-long (17 meter-long) Canadian built robotic arm.

The SpaceX CRS-5 launch is the first cargo launch to the ISS since the doomed Orbital Sciences Antares/Cygnus launch ended in catastrophe on Oct. 28.

With Antares launches on indefinite hold, the US supply train to the ISS is now wholly dependent on SpaceX.

Orbital Sciences has now contracted United Launch Alliance
(ULA) to launch the firms Cygnus cargo freighter to the ISS by late 2015 on an Atlas V rocket.

A secondary objective of SpaceX is to attempt to recover the Falcon 9 first stage on an off shore barge.

NASA Television live launch coverage begins at 5 a.m. EST on Jan. 6.

 SpaceX Falcon 9 rocket is set to soar to ISS after completing  successful static fire test on Dec. 19 ahead of planned CRS-5 mission for NASA in early January 2015. Credit: Ken Kremer – kenkremer.com
SpaceX Falcon 9 rocket is set to soar to ISS after completing successful static fire test on Dec. 19 ahead of replanned CRS-5 mission for NASA launching on Jan. 6, 2015. Credit: Ken Kremer – kenkremer.com

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

New countdown clock at NASA’s Kennedy Space Center displays SpaceX Falcon 9 CRS-5 mission and recent Orion ocean recovery at the Press Site viewing area on Dec. 18, 2014.  Credit: Ken Kremer – kenkremer.com
New countdown clock at NASA’s Kennedy Space Center displays SpaceX Falcon 9 CRS-5 mission and recent Orion ocean recovery at the Press Site viewing area on Dec. 18, 2014. Credit: Ken Kremer – kenkremer.com

Successful Engine Test Enables SpaceX Falcon 9 Soar to Space Station in Jan. 2015

SpaceX Falcon 9 rocket is set to soar to ISS after completing successful static fire test on Dec. 19 ahead of planned CRS-5 mission for NASA in early January 2015. Credit: Ken Kremer – kenkremer.com

KENNEDY SPACE CENTER, FL – To ensure the highest possibility of success for the launch of a critical resupply mission to the International Space Station (ISS), SpaceX has announced the successful completion of a second static fire test of the first stage propulsion system of the firms commercial Falcon 9 rocket on Dec. 19.

The successful engine test clears the path towards a liftoff now rescheduled to early January 2015.

The launch of the Falcon 9 had been slated for Dec. 19, but NASA and SpaceX decided just 1 day before liftoff on Dec. 18 to postpone the launch of the CRS-5 resupply mission into the new year, when the first static fire test failed to run for its full duration of approximately three seconds.

“SpaceX completed a successful static fire test of the Falcon 9 rocket [on Dec. 19] in advance of the CRS-5 mission for NASA,” said SpaceX in a statement.

The second test was done because the first test of the Merlin 1D engines did not run for its full duration of about three seconds.

SpaceX Falcon 9 rocket completes successful static fire test on Dec. 19 ahead od planned CRS-5 mission for NASA in early January 2015. Credit:  NASA
SpaceX Falcon 9 rocket completes successful static fire test on Dec. 19 ahead od planned CRS-5 mission for NASA in early January 2015. Credit: SpaceX

“While the Dec. 17 static fire test accomplished nearly all of our goals, the test did not run the full duration, ”SpaceX spokesman John Taylor confirmed to Universe Today.

“The data suggests we could push forward without a second attempt, but out of an abundance of caution, we are opting to execute a second static fire test prior to launch.”

Both tests were conducted at Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

“We opted to execute a second test,” noted SpaceX.

The SpaceX Falcon 9 rocket carrying the Dragon cargo freighter had been slated to liftoff on Dec. 19 on its next unmanned cargo run dubbed CRS-5 to the ISS under NASA’s Commercial Resupply Services (CRS) contract.

New countdown clock at NASA’s Kennedy Space Center displays SpaceX Falcon 9 CRS-5 mission and recent Orion ocean recovery at the Press Site viewing area on Dec. 18, 2014.  Credit: Ken Kremer – kenkremer.com
New countdown clock at NASA’s Kennedy Space Center displays SpaceX Falcon 9 CRS-5 mission and recent Orion ocean recovery at the Press Site viewing area on Dec. 18, 2014. Credit: Ken Kremer – kenkremer.com

Following the catastrophic failure of the Orbital Sciences Antares rocket and Cygnus cargo freighter on Oct 28 from NASA’s Wallops Flight Facility in Virginia, officials are being prudently cautious to ensure that all measures are being carefully rechecked to maximize the possibilities of a launch success.

The new launch date for CRS-5 is now set for no earlier than Jan. 6, 2015

“Given the extra time needed for data review and testing, coupled with the limited launch date availability due to the holidays and other restrictions, our earliest launch opportunity is now January 6 with January 7 as a backup,” said SpaceX.

The unmanned cargo freighter is loaded with more than 3,700 pounds of scientific experiments, technology demonstrations, crew supplies, spare parts, food, water, clothing and assorted research gear.

The Dragon research experiments will support over 256 science and research investigations for the six person space station crews on Expeditions 42 and 43.

CRS-5 marks the company’s fifth resupply mission to the ISS under a $1.6 Billion contract with NASA to deliver 20,000 kg (44,000 pounds) of cargo to the ISS during a dozen Dragon cargo spacecraft flights through 2016.

Among the other mission goals, SpaceX is planning a daring and bold attempt to propulsively land and recover the first stage on an ocean going platform called the “autonomous spaceport drone ship.”

SpaceX Falcon 9 first stage rocket will attempt precision landing on this autonomous spaceport drone ship soon after launch set for Dec. 19, 2014, from Cape Canaveral, Florida. Credit: SpaceX
SpaceX Falcon 9 first stage rocket will attempt precision landing on this autonomous spaceport drone ship soon after launch set for Dec. 19, 2014, from Cape Canaveral, Florida. Credit: SpaceX

Watch for Ken’s ongoing SpaceX launch coverage from onsite at the Kennedy Space Center.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Rocket Issues force SpaceX and NASA to Postpone Falcon 9 Rocket Launch to January 2015

SpaceX Falcon 9 erect at Cape Canaveral launch pad 40 awaiting launch on Sept 20, 2014 on the CRS-4 mission. Credit: Ken Kremer - kenkremer.com

KENNEDY SPACE CENTER, FL – Due to technical problems encountered during a hot fire test of the first stage engines this week with the SpaceX Falcon 9 rocket, the planned Dec. 19 launch of the commercial rocket and NASA contracted Dragon cargo freighter to the International Space Station (ISS) on a critical resupply mission has been postponed a few weeks into the new year to Jan. 6 at the earliest “out of an abundance of caution,” SpaceX officials told Universe Today.

Prior to every launch, SpaceX performs an internally required full countdown dress rehearsal and hot fire test of the first stage propulsion systems.

The hot fire test attempted on Tuesday “did not run for its full duration” of about three seconds, SpaceX spokesman John Taylor confirmed to me.

Therefore SpaceX and NASA managers decided to postpone the launch in order to run another static fire test.

“We are opting to execute a second static fire test prior to launch,” Taylor said.

In light of the catastrophic failure of the Orbital Sciences Antares rocket and Cygnus cargo freighter, everything must be done to ensure a launch success.

Due to the large amount of work required to test and analyze all rocket systems and the impending Christmas holidays, the earliest opportunity to launch is Jan. 6.

SpaceX Falcon 9 first stage rocket will attempt precison landing on this autonomous spaceport drone ship soon after launch set for Dec. 19, 2014 from Cape Canaveral, Florida.  Credit: SpaceX/Elon Musk
SpaceX Falcon 9 first stage rocket will attempt precision landing on this autonomous spaceport drone ship soon after launch now reset for Jan. 6, 2015, from Cape Canaveral, Florida. Credit: SpaceX/Elon Musk

The SpaceX Falcon 9 rocket carrying the Dragon cargo freighter had been slated to liftoff on its next unmanned cargo run dubbed CRS-5 to the ISS under NASA’s Commercial Resupply Services (CRS) contract.

Here is the full update from SpaceX.

“While the recent static fire test accomplished nearly all of our goals, the test did not run the full duration. The data suggests we could push forward without a second attempt, but out of an abundance of caution, we are opting to execute a second static fire test prior to launch.”

“Given the extra time needed for data review and testing, coupled with the limited launch date availability due to the holidays and other restrictions, our earliest launch opportunity is now Jan. 6 with Jan. 7 as a backup.

New countdown clock at NASA’s Kennedy Space Center displays SpaceX Falcon 9 CRS-5 mission and recent Orion ocean recovery at the Press Site viewing area on Dec. 18, 2014.  Credit: Ken Kremer – kenkremer.com
New countdown clock at NASA’s Kennedy Space Center displays SpaceX Falcon 9 CRS-5 mission and recent Orion ocean recovery at the Press Site viewing area on Dec. 18, 2014. Credit: Ken Kremer – kenkremer.com

“The ISS orbits through a high beta angle period a few times a year. This is where the angle between the ISS orbital plane and the sun is high, resulting in the ISS’ being in almost constant sunlight for a 10 day period.

“During this time, there are thermal and operational constraints that prohibit Dragon from being allowed to berth with the ISS. This high beta period runs from 12/28/14-1/7/15”

“Note that for a launch on 1/6 , Dragon berths on 1/8.”

“Both Falcon 9 and Dragon remain in good health, and our teams are looking forward to launch just after the New Year.”

Watch for Ken’s ongoing SpaceX launch coverage from onsite at the Kennedy Space Center.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

SpaceX Falcon 9 Rocket to Attempt Daring Ocean Platform Landing with Next Launch

SpaceX Falcon 9 first stage rocket will attempt precison landing on this autonomous spaceport drone ship soon after launch set for Dec. 19, 2014 from Cape Canaveral, Florida. Credit: SpaceX/Elon Musk

KENNEDY SPACE CENTER, FL – In a key test of rocket reusability, SpaceX will attempt a daring landing of their Falcon 9 first stage rocket on an ocean platform known as the “autonomous spaceport drone ship” following the planned Friday, Dec. 19, blastoff on a high stakes mission to the International Space Station (ISS).

The SpaceX Falcon 9 rocket carrying the Dragon cargo freighter is slated to liftoff on its next unmanned cargo run, dubbed CRS-5, to the ISS under NASA’s Commercial Resupply Services (CRS) contract. In a late development, there is a possibility the launch could be postponed to January 2015.

The instantaneous launch window for the Falcon 9/Dragon is slated for 1:20 p.m from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

As the Dragon proceeds to orbit, SpaceX engineers will attempt to recover the Falcon 9 first stage via a precision landing for the first time “on a custom-built ocean platform known as the autonomous spaceport drone ship,” according to a SpaceX statement.

Testing operation of Falcon 9 hypersonic grid fins (x-wing config) launching on next Falcon 9 flight, CRS-5.   Credit: SpaceX/Elon Musk
Testing operation of Falcon 9 hypersonic grid fins (x-wing config) launching on next Falcon 9 flight, CRS-5. Credit: SpaceX/Elon Musk

“While SpaceX has already demonstrated two successful soft water landings, executing a precision landing on an unanchored ocean platform is significantly more challenging.”

SpaceX rates the chances of success at “perhaps 50% at best.”

Of course since this has never been attempted before, tons of planning is involved and lots can go wrong.

But this is space exploration, and it’s not for the meek and mild.

It’s time to go boldly where no one has gone before and expand the envelope if we hope to achieve great things.

SpaceX Falcon 9 erect at Cape Canaveral launch pad 40  awaiting launch on Sept 20, 2014 on the CRS-4 mission. Credit: Ken Kremer - kenkremer.com
A SpaceX Falcon 9 erect at Cape Canaveral launch pad 40 prior to launch on Sept 20, 2014, on the CRS-4 mission. Credit: Ken Kremer – kenkremer.com

The 14 story Falcon 9 will be zooming upwards at 1300 m/s (nearly 1 mi/s). Engineers will then relight the Merlin 1D first stage engines to stabilize and lower the rocket.

Four hypersonic grid fins had been added to the first stage and placed in an X-wing configuration. They will be deployed only during the reentry attempt and will be used to roll, pitch, and yaw the rocket in concert with gimballing of the engines.

Here’s a description from SpaceX:

“To help stabilize the stage and to reduce its speed, SpaceX relights the engines for a series of three burns. The first burn—the boostback burn—adjusts the impact point of the vehicle and is followed by the supersonic retro propulsion burn that, along with the drag of the atmosphere, slows the vehicle’s speed from 1300 m/s to about 250 m/s. The final burn is the landing burn, during which the legs deploy and the vehicle’s speed is further.”

“To complicate matters further, the landing site is limited in size and not entirely stationary. The autonomous spaceport drone ship is 300 by 100 feet, with wings that extend its width to 170 feet. While that may sound huge at first, to a Falcon 9 first stage coming from space, it seems very small. The legspan of the Falcon 9 first stage is about 70 feet and while the ship is equipped with powerful thrusters to help it stay in place, it is not actually anchored, so finding the bullseye becomes particularly tricky. During previous attempts, we could only expect a landing accuracy of within 10km. For this attempt, we’re targeting a landing accuracy of within 10 meters.”

Watch for Ken’s ongoing SpaceX launch coverage from onsite at the Kennedy Space Center.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

………….

Learn more about SpaceX, Orion, Antares, NASA missions and more at Ken’s upcoming outreach events:

Dec 18: “SpaceX CRS-5, Orion EFT-1, Antares Orb-3 launch, Curiosity Explores Mars,” Kennedy Space Center Quality Inn, Titusville, FL, evenings