Posted on by Ken Kremer

NASA Lunar Reconnaissance Orbiter Delivers Treasure Trove of Data

LOLA data give us three complementary views of the near side of the moon: the topography (left) along with new maps of the surface slope values (middle) and the roughness of the topography (right). All three views are centered on the relatively young impact crater Tycho, with the Orientale basin on the left side. The slope magnitude indicates the steepness of terrain, while roughness indicates the presence of large blocks, both of which are important for surface operations. Lunar topography is the primary measurement being provided, while ancillary datasets are steadily being filled in at the kilometer scale. Credit: NASA/LRO/LOLA Science Team

[/caption]

NASA’s Lunar Reconnaissance Orbiter (LRO) has completed its initial phase of operations during the exploration phase which lasted one year from Sept. 15, 2009 through Sept. 15, 2010 and has now transitioned to the science phase which will last for several more years depending on the funding available from NASA, fuel reserves and spacecraft health. The exploration phase was in support of NASA’s now cancelled Project Constellation

To mark this occasion NASA released a new data set that includes an overlap of the last data from the exploration phase and the initial measurements from the follow on science mapping and observational phase.

This is the fifth dataset released so far. All the data is accessible at the Planetary Data System (PDS) and the LROC website and includes both the raw data and high level processed information including mosaic maps and images.

LRO was launched on June 18, 2009 atop an Atlas V/Centaur rocket as part of a science satellite duo with NASA’s Lunar Reconnaissance Orbiter & Lunar Crater Observation and Sensing Satellite (LCROSS) from Launch Complex 41 at Cape Canaveral Air Force Station in Florida.

After achieving elliptical orbit, LRO underwent a commissioning phase and the orbit was lowered with thruster firings to an approximately circular mapping orbit at about 50 km altitude.

LRO spacecraft (top) protected by gray colored blankets is equipped with 7 science instruments located at upper right side of spacecraft. Payload fairing in background protects the spacecraft during launch and ascent. Credit: Ken Kremer
LRO was equipped with 7 science instruments that delivered more than 192 terabytes of data and with an unprecedented level of detail. Over 41,000 DVDs would be required to hold the new LRO data set.

“The release of such a comprehensive and rich collection of data, maps and images reinforces the tremendous success we have had with LRO in the Exploration Systems Mission Directorate and with lunar science,” said Michael Wargo, chief lunar scientist of the Exploration Systems Mission Directorate at NASA Headquarters in Washington according to a NASA statement.

The new data set includes a global map produced by the onboard Lunar Reconnaissance Orbiter Camera (LROC) that has a resolution of 100 meters. Working as an armchair astronaut, anyone can zoom in to full resolution with any of the mosaics and go an exploration mission in incredible detail because the mosaics are humongous at 34,748 pixels by 34,748 pixels, or approximately 1.1 gigabytes.

Browse the Lunar Reconnaissance Orbiter Camera (LROC) Image Gallery here:

The amount of data received so far from LRO equals the combined total of all other NASA’s planetary missions. This is because the moon is nearby and LRO has a dedicated ground station.

Topographic map from LRO data. Credit: NASA

Data from the other LRO instruments is included in the release including visual and infrared brightness, temperatures maps from Diviner; locations of water-ice deposits from the Lyman-Alpha Mapping Project (LAMP) especially in the permanently shadowed areas and new maps of slope, roughness and illumination conditions from the Lunar Orbiter Laser Altimeter team.

Additional new maps were generated from data compilations from the Lunar Exploration Neutron Detector (LEND), the Cosmic Ray Telescope for the Effects of Radiation and the Miniature Radio Frequency (mini RF) instruments

The combined result of all this LRO data is to give scientists the best ever scientific view of the moon.

“All these global maps and other data are available at a very high resolution — that’s what makes this release exciting,” said Goddard’s John Keller, the LRO deputy project scientist. “With this valuable collection, researchers worldwide are getting the best view of the moon they have ever had.”

Slope image. Credit: NASA
The Atlas V/Centaur carrying NASA's Lunar Reconnaissance Orbiter & Lunar Crater Observation and Sensing Satellite hurtles off Launch Complex 41 at Cape Canaveral Air Force Station in Florida on June18, 2009. Credit: NASA/Tom Farrar, Kevin O'Connell

Source: NASA Press Release

Posted on by Ken Kremer

Discoverys Last Launch and Landing Captured in Exquisite Amateur Videos

Launch of Space Shuttle Discovery on Feb. 24 at 4:53 p.m. from launch pad 39 A at the Kennedy Space Center. Credit: Ken Kremer


Watch the HD version. More photos below

Imagine ….. “You Are There ! ”

… in the middle of the whooping, cheering crowd at the Kennedy Space Center (KSC) for the historic final launch of Space Shuttle Discovery on the STS-133 mission to the International Space Station.

That’s the feeling you’ll get from this exquisite and exciting piece from amateur videographer Anton Janssen from the Netherlands. Anton has captured the sights and sounds of excitement of the giant crowd in the thick of the action in this amazingly sharp video of Discovery’s last blast to space.

Anton’s vantage point from the NASA Causeway enabled him to film the liftoff with a birds eye view of the entire orbiter to the base of the launch pad – not blocked by the launch gantry at all. And to top that off, the video shows panoramic reaction shots of the large and exuberant crowd. What’s more is you can hear the cheering multitudes at multiple milestones as Discovery ascends with a deafening roar and spewing intense scorching flames out her rear like a gigantic blowtorch burning an indelible hole in the sky.

I happened to meet Anton at Port Canaveral a few days after the launch as Discovery’s powerful Solid Rocket Boosters (SRB’s) were being towed along the canal following their retrieval from the Atlantic Ocean.

[/caption]

Anton told me he bought the camera new and especially for the STS-133 launch after he purchased one of the very hard to get VIP Tickets from the KSC Visitor Complex. He arrived at the viewing site several hours early, along with tens of thousands of other onlookers along the Florida Space Coast beaches and roadways.

“The NASA Causeway was a great viewing site because you could see the shuttle right from the start,” Anton explained.

Check out this amazing close up video view of the final moments of Discovery’s final landing and the finale of her space career as record by Matt Travis, of Spacearium, taken at the Shuttle Landing Facility where I was also stationed.

This timelapse of Discovery’s launch was shot from the Kennedy Space Center Causeway Viewing Site, by David Gonzales of Project Soar. (See our previous article about them.) Here, approximately 12 minutes is condensed into 27 seconds, so about 27 times as fast. Replayed at 15 fps. See the launch and smokey plume change over time as it is tugged on by wind.

Only 1 or 2 flight remain for the Space Shuttle Program until they are forcibly retired for lack of money.

Next up is the launch of Endeavour on April 19 at dusk. Should make for some extremely cool videos and snapshots! Get your gear ready!

Space Shuttle Discovery concluded her magnificent final journey with a safe landing on March 9, 2011 at the Kennedy Space Center in Florida at 11:57 a.m. EST. Credit: Ken Kremer
Posted on by Ken Kremer

Endeavour Mated to Rockets for Last Flight Photo Album

Space Shuttle Endeavour in VAB for Final Lift and Mate to Rocket Boosters. Endeavour was attached for the last time to External fuel tank and Solid Rocket Boosters that will power her last ascent to space on the STS-134 mission in April 2011. Then she will be retired from active duty service and sit in a museum yet to be chosen. All the orbiters could be usefully flown for many more years but for lack of money from the US Federal Government. Credit: Ken Kremer

[/caption]

For the final flight of Space Shuttle Endeavour, I was privileged to be one of the lucky few to be an eyewitness to how the orbiter was hoisted and attached for the last time to the External fuel tank and twin solid rocket boosters that will power her last ascent to space on the STS-134 mission . Thereafter she will be retired from active duty service.

“Lift and Mate” is the formal name for the nearly day and a half long intricate process to join Endeavour to the fuel tank and rocket boosters and took place after the orbiter was hauled inside the 52 story Vehicle Assembly Building atop a 76 wheeled transporter on Feb. 28.

Workers in the Vehicle Assembly Building (VAB) secure yellow metal sling to Endeavour prior to lift from the VAB transfer aisle into High Bay 3 on 1 March 2011. Credit: Ken Kremer

Lift and Mate is a jaw dropping and unforgettable experience because you see the orbiter suspended in mid air as though it was flying in space. While hanging in the air by thin cables, the 100 ton orbiter is reminiscent to me of what astronauts on the International Space Station surely see as the shuttle approaches for docking.

Following the shuttles rollover to the VAB on top on the transporter, technicians initially attached a large yellow, metal sling to Endeavour in the center area of the VAB – known as the transfer aisle.

Endeavour was then slowly and methodically hoisted on pulleys and chains into the vertical position. The tail came to rest just a few meters from the hard and unforgiving concrete floor. The orbiter was then lifted up to the VAB ceiling and carefully moved over walkways into High Bay 3. Media including myself watched this entire process in total awe from several different levels inside the VAB as Endeavour was lifted past us from just a few meters away.

The final step was to lower Endeavour into position for mating to the fuel tank and solid rocket boosters already awaiting her arrival.
Its hard to believe I was really an eyewitness to this majestic event and also sadly realize it will never happen again.

“The orbiter has a lot of life left in her,” said a top shuttle manager to me. “The shuttle could fly many more missions.”

Large yellow sling set to be attached to Endeavour. Credit: Ken Kremer

NASA will rollout Endeavour to Launch Pad 39 A on March 9 following the landing of Space Shuttle Discovery.

The STS-134 mission will be the 25th and final flight for shuttle Endeavour. Launch is set for April 19. Endeavour will haul the $2 Billion Alpha Magnetic Spectrometer (AMS) to orbit and attach it to the ISS. AMS will search for dark matter and seek to determine the origin of the universe.

Check out the majestic views of “Lift and Mate” for Space Shuttle Endeavour in my photo album herein

Final “Lift and Mate” of Space Shuttle Endeavour. Photos by Ken Kremer

Space Shuttle Endeavour in VAB for Lift and Mate. Credit: Ken Kremer
Overhead view of Space Shuttle Endeavour in VAB for Lift and Mate. Credit: Ken Kremer
Overhead view of Space Shuttle Endeavour in VAB for Lift and Mate from Level 16. Credit: Ken Kremer
Belly view of Space Shuttle Endeavour coated with thousands of heat shield tiles. Two rectangular attach points hold left and right side main separation bolts from ET Credit: Ken Kremer
Lifting Endeavour. Credit: Ken Kremer
Belly view of Space Shuttle Endeavour and heat shield tiles. Credit: Ken Kremer
Endeavour goes Vertical. Credit: Ken Kremer
Rotating Vertical Endeavour. Credit: Ken Kremer
Lowering Endeavour to Solid Rocket Boosters and External fuel tank inside VAB. Credit: Ken Kremer
Lowering Endeavour in High Bay 3 to SRBs and ET inside VAB. Credit: Ken Kremer
Lowering Endeavour to SRB’s and ET inside VAB. Credit: Ken Kremer
Lowering Endeavour to SRB’s and ET inside VAB. Credit: Ken Kremer
Endeavour disappears behind scaffolding while it is lowered to SRB’s and ET inside VAB. Credit: Ken Kremer
Endeavour disappears behind scaffolding while it is lowered to SRB’s and ET inside VAB. Tip of ET visible here above nose of Endeavour. Credit: Ken Kremer
Ken Kremer and Space Shuttle Endeavour in the VAB for Lift and Mate to Booster rocket
Posted on by Nancy Atkinson

NASA Mission to Europa May Fall to Budget Cuts

Europa During Voyager 2 Closest Approach
Europa During Voyager 2 Closest Approach. Credit: NASA/JPL

[/caption]

Next week, the US National Academy of Sciences will release their decadal review of priorities for planetary science in 2013-2022, and it will be interesting to see how highly prioritized a mission to Jupiter’s enticing moon Europa will be. But according to Space News, word from the NASA Advisory Council’s planetary science subcommittee is that because of probable flat or declining budgets for building and operating planetary probes over the next five years, there will likely be no funding to begin development of a flagship-class mission such as a long-anticipated detailed survey of Europa.

“The out-years budget means no major new starts of a flagship planetary [mission],” Ronald Greeley, a regent’s professor at Arizona State University in Tempe and chairman of the NASA Advisory Council’s planetary science subcommittee, said during a March 1 conference call with panel members. “That’s a major, major issue for our community.”

The only flagship-class planetary mission in the works is the $2.5 billion Mars Science Laboratory Curiosity. The Juno mission to Jupiter, scheduled to launch in August 2011, is a medium-class “New Frontiers” mission set to study Jupiter only and not any of its moons.

The 2012 budget request for NASA, unveiled February 14, 2011 by President Obama, would boost spending on planetary science activities from the current level of $1.36 billion to $1.54 billion next year. But funding would steadily decline over the following four years, to $1.25 billion in 2016.

Space News reports that “NASA’s projected top-line budget is flat over the next five years at $18.72 billion, which when inflation is factored in translates into a decline in spending power. But there are budgetary scenarios under which NASA’s budget would decline over the next five years, even as the agency tries to replace the space shuttle and contends with runaway cost growth on the $5 billion-plus James Webb Space Telescope, the designated successor to the Hubble Space Telescope.”

Many have long hoped for mission to Europa, but budgetary issues have been a problem, even the past; the JIMO (Jupiter Icy Moon Orbiter) mission was canceled in 2005 because of lack of funding.

ESA and NASA have been studying a collaborative mission called Europa Jupiter System Mission/Laplace that would send two spacecraft to survey Jupiter and its moons. It is one of three candidates for a large-scale science mission opportunity that would launch around 2022. ESA has budgeted about $1 billion for the opportunity but is awaiting decisions from NASA and the Japanese space agency, which is collaborating on another candidate mission, before making a final decision on which one to pursue.

“How we will implement [the decadal priorities] within our existing budget needs to be considered,” NASA Planetary Science Division Director Jim Green said during the March 1 conference call, adding there is “no additional money beyond the president’s submitted budget.”

Source: Space News

Posted on by Ken Kremer

NASAs Navy tows Discoverys Last Rocket Boosters into Port Canaveral – Photo Album

Freedom Star tows Solid Rocket Booster (SRB) from Discovery’s last llight. NASA’s Solid Rocket Booster Retrieval Ship - Freedom Star - tows one of Discovery’s booster from the Atlantic Ocean into the entrance of Port Canaveral on its journey to Hangar AF at Cape Canaveral Air Force Station in Florida. Seagulls help guide NASA’s Navy into port. Credit: Ken Kremer

[/caption]

As the Space Shuttle program quickly winds down, one of the lesser known facts is that the public can get a free bird’s eye view of the ocean retrieval of the mighty Solid Rocket Boosters which power the orbiters majestic climb to space. All you have to do is stand along the canal of Port Canaveral, Florida as the rockets float by on their journey to a processing hanger at Cape Canaveral Air Force Station.

And if you own a boat you can sail right along side for the thrilling ride as the boosters are towed by ship from the Atlantic Ocean into the entrance of Port Canaveral. It’s the same route traveled by the humongous cruise ships setting sail for distant ports on Earth.

NASA’s Navy has recovered the twin Solid Rocket Boosters (SRB’s) used during space shuttle Discovery’s final flight. See my photo album above and below.

The two SRB’s and associated flight hardware are retrieved after they splashdown in the Atlantic Ocean following every shuttle launch by the NASA owed ships named Freedom Star and Liberty Star.

Discovery SRB in tow in the Atlantic Ocean by Freedom Star Retrieval Ship. Credit: Ken Kremer

Freedom Star and Liberty Star are stationed about 10 miles from the impact area at the time of splashdown. The ships then sail to the SRB splashdown point and divers are deployed to attach tow lines, haul in the parachutes used to slow the descent and install dewatering equipment.

Each vessel tows one SRB all the way from the Atlantic Ocean into Port Canaveral and then through the locks to Cape Canaveral Air Force Station. After the spent segments are decontaminated and cleaned, they will be transported to Utah, where they will be refurbished and stored, if needed.

Discovery SRB in tow past a flock of birds at Atlantic Ocean entrance to Port Canaveral. Credit: Ken Kremer

The unique ships were specifically designed and constructed to recover the SRB’s. The SRB’s separate from the orbiter about two minutes after liftoff. They impact in the Atlantic about seven minutes after liftoff and some 100 nautical miles downrange from the launch pad off the Florida coastline.

The STS-133 mission was launched from pad 39A at NASA’s Kennedy Space Center on Feb. 24 on Discovery’s 39th and last space flight. Landing is slated for March 8 at 11:36 a.m. at KSC.

The all veteran six person crew has successfully attached the Leonardo storage module and completed two space walks. Leonardo is packed with the R2 humanoid robot and tons of science gear, spare parts, food and water.

Photo album: Recovery and Retrieval of Solid Rocket Boosters from Space Shuttle Discovery’s final flight to space on STS-133 mission.

Close up of forward segments of SRB in tow minus the nose cap which separates at 2.5 nautical miles altitude and releases a parachute. Lighthouse in the background. Credit: Ken Kremer
Freedom Star - NASA’s Solid Rocket Booster Retrieval Ship. Credit: Ken Kremer
Pleasure boats navigate for birds eye view alongside water retrieval of the shuttles Solid Rocket Boosters in Port Canaveral. Credit: Ken Kremer
Rear view to SRB Aft Skirt from the Jetty Park Pier at Port Canaveral. Credit: Ken Kremer
Onlookers fish from rocky outcrops as SRB’s - which generate 3 million pounds of liftoff thrust - float by on a gorgeous afternoon in sunny Florida. What an incredible sight ! Credit: Ken Kremer
Liberty Star with SRB alongside in hip tow position in Port Canaveral. Frustrum of a forward aft skirt assembly is visible on deck of Liberty Star at left. Credit: Ken Kremer
Close up of Frustrum of a forward aft skirt SRB assembly on deck of Liberty Star in Port Canaveral. Credit: Ken Kremer
NASA’s Freedom Star and Liberty Star Solid Rocket Booster Retrieval Ships
docked in Port Canaveral. Both of NASA’s SRB retrieval ships are pictured here with boosters alongside. Credit: Ken Kremer
Ken Kremer at tow back of Discovery’s SRB’s by NASA’s Retrieval Ship Freedom Star. Credit: Urijan Poerink
Posted on by Ken Kremer

Endeavour Rolls to Vehicle Assembly Building for Final Flight

Endeavour was rolled a few hundred yards from the Orbiter Processing Facility to the Vehicle Assembly Building (VAB) at the Kennedy Space Center on Feb. 28. Credit: Alan Walters - awaltersphoto.com

[/caption]NASA’s Space Shuttle Program is inexorably and swiftly headed towards its finale.

With shuttle Discovery orbiting some 200 miles overhead on her final flight, launch preparations for the final flight of Space Shuttle Endeavour moved into high gear.

Endeavour was rolled a few hundred yards from her processing hanger at the Kennedy Space Center to the Vehicle Assembly Building (VAB) where she will be attached to the external fuel tank (ET) and twin solid rocket boosters (SRB) which will power her final trip to space. See photo album below from Alan Walters and Ken Kremer.

NASA plans to transport Endeavour to Launch Pad 39 A on March 9 for the STS-134 missionand her 25th and final flight. Launch is set for April 19.

Rollover of Endeavour. Credit: Alan Walters - awaltersphoto.com

Endeavour and her six person crew will deliver the Alpha Magnetic Spectrometer, a $1.5 Billion particle physics detector designed to search for dark matter and determine the origin of the Universe. The crew will also deliver a platform that carries spare parts platform parts that will sustain station operations once the shuttles are retired later this year.

The quarter mile trip on a 76 wheeled transporter began about 7 AM this morning (Feb 28). The orbiter was backed tail first out of the processing hanger known as the Orbiter Processing Facility and then ‘rolled over’ to the VAB and parked close to the entrance doors.

Rollover marks the start of the final phase of launch preparations for the STS-134 mission. Hundreds of Shuttle workers who process the orbiters for flight were invited to witness the event and pose for photo ops with the spaceship. Most KSC employees never get the chance to glimpse the orbiters up close.

The next major milestone is for Endeavour to be hoisted and mated to the External Tank on Tuesday and prepare for rollout to the launch pad.

STS 134 astronauts pilot Gregory Johnson and Italian flight engineer Roberto Vittori watch Rollover of Endeavour on Feb 28. Credit: Ken Kremer
Rollover of Endeavour. Credit: Alan Walters - awaltersphoto.com
Rollover of Endeavour. Credit: Alan Walters - awaltersphoto.com
Rollover of Endeavour. Credit: Alan Walters - awaltersphoto.com
Rollover of Endeavour. Credit: Ken Kremer

Rollover of Endeavour. Credit: Ken Kremer

Rollover of Endeavour. Credit: Ken Kremer

Rollover of Endeavour. Credit: Ken Kremer
Posted on by Ken Kremer

Discovery Docks at Space Station on Historic Final Voyage with First Human-Robot Crew

Space Shuttle Discovery linked up to the International Space Station (ISS) today, Feb. 26, for her 13th and final time on her historic last mssion to space. Credit: NASA

[/caption]

Space Shuttle Discovery linked up to the International Space Station (ISS) today, Feb. 26, on her historic final voyage and still charting new frontiers by carrying the first ever joint space crew of humans and robots.

The all veteran human crew is comprised of five men and one women including Commander Steve Lindsey, Pilot Eric Boe and Mission Specialists Alvin Drew, Steve Bowen, Michael Barratt and Nicole Stott. For the first time in the history of manned spaceflight, the humans are joined by a robotic companion named R2 or Robonaut 2. R2 is the first humanoid robot in space and will become an official member of the ISS crew.
See Discovery Launch, Docking and Robonaut photo album below.

Discovery docked at the ISS at 2:14 p.m. EST at the Harmony node while flying some 220 miles above western Australia. The shuttle arrived after a two day orbital chase that commenced with a picture perfect blast off on Feb. 24 from the Kennedy Space Center in Florida.

Shuttle Commander Steve Lindsey manually flew Discovery to join the two ships together. They have a combined mass of over 1.2 million pounds. This was Discovery’s 13th and final docking to the orbiting outpost. Discovery also was the first shuttle to dock to the ISS on the STS-96 mission on May 29, 1999.

After allowing the relative motions between the two ships to dampen out, the vehicles were then hard mated together. Hatches between the spacecraft were opened at 4:16 p.m. EST and the six Shuttle astronauts floated through the docking tunnel and into the station. They were welcomed by the six current residents already living and working aboard the ISS and thereby doubled the ISS human population to 12.

Prior to docking, Discovery executed a spectacular head over heels “back flip” with Commander Lindsey at the controls so that ISS crew members Paolo Nespoli and Cady Coleman could take hundreds of high resolution photographs of the shuttles critical heat shield tiles.

Over a period of nine minutes, Discovery rotated backward through a full 360 degrees during the dramatic maneuver with Earth as the backdrop.

The fragile thermal protection system (TPS) tiles protect the orbiter from the scorching heat generated during reentry through the Earth’s atmosphere. Specialists on the ground at the Johnson Space Center will pore over the images to look for any signs of tile damage which may have occurred during launch or on orbit.

Discovery’s cargo bay is loaded with a large new pressurized storage room and critical space parts for the space station. The primary goal of the STS-133 mission is to attach the new Permanent Multipurpose Module named “Leonardo” to the ISS which will provide additional living space for the station crews.

R2 is packed inside Leonardo along with science equipment, spare parts, clothing, food and assorted gear. The robot will serve as an assistant to the ISS astronauts and conduct science experiments and maintenance chores.

The twin brother of the R2 Robonaut and their NASA/GM creators at KSC.
Robonaut 2 and the NASA/GM team of scientists and engineers watched the launch of Space Shuttle Discovery and the first joint Human-Robot crew on the STS-133 mission on Feb. 24, 2011 from the Kennedy Space Center. Credit: Ken Kremer

See a stunning 360 degree panorama of Robonaut 2 at KSC from nasatech.net at this link

The twin brother of R2 eagerly watched the Feb, 24 blastoff of Discovery and crew live from nearby the famous countdown clock at the Kennedy Space Center.

The 11 day flight includes two spacewalks.

With Discovery safely docked , the ISS is now the biggest it has even been and is currently configured with all vehicles which fly to the station including the newly arrived ATV from Europe, HTV from Japan and Soyuz and Progress spacecraft from Russia.

The ATV itself arrived docked barely 4 hours before Discovery in a critical operation that paved the way for blastoff of the STS-133 mission and reflects the magnitude of the ongoing orbital traffic jam at the ISS.

If all the STS-133 work is successfully accomplished, a Soyuz will undock towards the end of the STS-133 mission and stage a station fly around to capture the ultimate ISS photo op at the biggest it will ever be.

Launch of Space Shuttle Discovery on Feb. 24 at 4:53 p.m.
from launch pad 39 A at the Kennedy Space Center. Credit: Ken Kremer

Photo Album: Discovery executes dramatic back flip or Rendezvous Pitch Maneuver (RPM) as it approaches and docks at the ISS on Feb. 26, 2011


Discovery launches on 39th and final flight to space on STS-133 mission. Credit: Ken Kremer
Discovery’s arc to orbit on Feb. 24 with first Human-Robot crew. Credit: Ken Kremer
The six person crew of Space Shuttle Discovery in their orange launch and entry flight suits
wave to large and enthusiastic crowd of space shuttle workers and media spectators before heading to the launch pad in the Astrovan for the STS-133 mission. From left are Mission Specialists Nicole Stott, Michael Barratt, Alvin Drew and Steve Bowen; Pilot Eric Boe; and Commander Steve Lindsey. Discovery will deliver the Permanent Multipurpose Module, packed with supplies and critical spare parts, as well as Robonaut 2 to the ISS. Credit: Ken Kremer
Posted on by Ken Kremer

Discovery and Robonaut Unveiled for February 24 Blast Off

The twin brother of the R2 Robonaut awaits launch of Space Shuttle Discovery on the STS-133 mission, its 39th and final fligh to space. Credit: Ken Kremer

[/caption]Space Shuttle Discovery is unveiled for blastoff at 4:50 p.m. today, Feb. 24 from launch Pad 39 A at the Kennedy Space Center in Florida . This is roughly the moment when Earth’s rotation carries the launch pad into the plane of the orbit of International Space Station (ISS)

The rotating service structure was retracted on Wednesday night starting around 8 p.m. Feb. 23 over about 25 minutes under a light fog.

In a major milestone, the External Fuel tank has been successfully loaded with 535,000 gallons of liquid hydrogen fuel and liquid oxygen to power Discovery’s three main engines during the 8 1/2-minute climb into orbit. A dangerous leak of gaseous hydrogen is what caused the launch scrub last Nov. 5.

Pumps will continue to trickle propellants into the tank to replace the small amounts that evaporate during the countdown.

It’s an absolutely gorgeous day here at KSC with clear blue skies, calm winds and a crackling excitement that permeates the air for everyone here for the launch.

Discovery unveiled for Feb 14 launch with 6 astronauts and R2 Robonaut on STS-133 mission.. Credit: Alan Walters, awalterphoto.com

The weather forecast has been upgraded to 90% GO from 80% yesterday which was cloudy and overcast. A few low lying clouds are the only concern.

Large public crowds have gathered at public viewing areas along Florida’s Space Coast. The hotels are full of folks excited to see the historic final launch of Discovery on its 39th and final mission.

The Johannes Kepler ATV is due to dock at the ISS at about 12 noon. A successful docking is an essential prerequisite to clear Discovery for liftoff.

The countdown clock is ticking down towards the final blastoff of Discovery.

The veteran crew of five men and one woman led by Shuttle Commander Steve Lindsey arrived on Sunday on a wave of T-38 jets.

The primary goal of the STS-133 mission is to deliver the “Leonardo” Permanent Multipurpose Module to the ISS. The R2 Robonaut is packed Inside Leonardo along with science equipment, spare parts, clothing food and assorted gear.

The twin brother of R2 is on hand at KSC to watch his brothers launch. He also sports a fancy new set of wheels patterned after the rocker bogie system of NASA’s Mars rovers Spirit and Opportunity.

Posted on by Ken Kremer

Sounds of Comet Tempel 1 smashing into Stardust-NExT

News conference held Feb. 15 following the flyby of comet Tempel 1 by the Stardust-NExT spacecraft on Valentine's Day, Feb. 14. The spacecraft's closest approach was a distance of 112 miles. Participants are: Ed Weiler, NASA's associate administrator, Science Mission Directorate, Washington; Joe Veverka, Stardust-NExT principal investigator, Cornell University; Tim Larson, Stardust-NExT project manager, NASA's Jet Propulsion Laboratory, Pasadena, Calif.; Don Brownlee, Stardust-NExT co-investigator, University of Washington, Seattle; and Pete Schultz, Stardust-NExT co-investigator, Brown University.

As Stardust-Next was racing past Comet Tempel at 9.8 km/sec, or 24,000 MPH, it encountered a hail of bullet like particles akin to a warplane meeting the fury of armed resistance fighters which potentially could have utterly destroyed the probe.

NASA has released a cool sound track of the sounds of thousands of cometary dust particles pelting Stardust-NExT. The audio was recorded by an instrument aboard the spacecraft called the Dust Flux Monitor which measures sound waves and electrical pulses from dust impacts.

Telemetry downlinked after the Feb. 14 flyby indicates the spacecraft flew through waves of disintegrating cometary particles.

“The data indicate Stardust went through something similar to a B-17 bomber flying through flak in World War II,” says Don Brownlee, Stardust-NExT co-investigator from the University of Washington in Seattle.

I contacted co-investigator Don Brownlee for further insight into the sounds and sights of the Tempel 1 flyby.

“The 12 biggest particles penetrated the centimeter thick front honeycomb plate of the whipple meteoroid shield and were detected with the Dust Flux Monitor Instrument,“ Brownlee told me. “The instrument had two type of sensors made in a collaboration between the University of Chicago and the University of Kent in the UK.
[/caption]

The shielding was installed to protect Stardust from the hail of cometary particles during its prior flyby at Comet Wild 2 in 2004. Brownlee was the Principal Investigator for Stardust during its original mission at Wild 2.

I asked Brownlee if the shields were essential to the spacecraft surviving the Tempel 1 flyby ?

“Yes,’ he replied.

“A total of approximately 5,000 particle impacts were detected,” Brownlee said. This was over a period of about 11 minutes during closest approach. The movie is in real time and is a visual representation of the sounds. It covers just a portion of the flyby.

“Like at Wild 2, the particles came out in bursts and clumps. The Tempel 1 flyby, the Wild 2 flyby and the recent imaging of Comet Hartley confirm that fragmenting. Dust and ice clods are commonly released into space by comets.”

“The biggest at Wild 2 was about 0.5 cm and this time at Tempel 1 they were probably a bit bigger. The penetrating impacts at Tempel 1 were about twice what they were at Wild 2 ….. Also about twice as fast!”

“The data indicate Stardust went through something similar to a B-17 bomber flying through flak in World War II,” said Don Brownlee, Stardust-NExT co-investigator from the University of Washington in Seattle. “Instead of having a little stream of uniform particles coming out, they apparently came out in chunks and crumbled.”

To my eye, I was surprised that the flyby images seemed to surpass those at Wild 2. Brownlee agreed.

“I was surprised,” said Brownlee. “The team did a terrific job and the images are better than before. Tempel is a little closer to the sun, the flyby was a little closer, the pictures were taken at a much higher rate and the imaging team put in a great effort to plan the exposures and to clean up the camera before the encounter. The mirror was scanning at it’s maximum rate!”

Listen to the Stardust-NExT post flyby briefing

News conference held Feb. 15 following the flyby of comet Tempel 1 by the Stardust-NExT spacecraft on Valentine’s Day, Feb. 14. The spacecraft’s closest approach was a distance of 112 miles. Participants are: Ed Weiler, NASA’s associate administrator, Science Mission Directorate, Washington; Joe Veverka, Stardust-NExT principal investigator, Cornell University; Tim Larson, Stardust-NExT project manager, NASA’s Jet Propulsion Laboratory, Pasadena, Calif.; Don Brownlee, Stardust-NExT co-investigator, University of Washington, Seattle; and Pete Schultz, Stardust-NExT co-investigator, Brown University.

Posted on by Ken Kremer

Movies of Comet Tempel 1 Encounter by Stardust-NExT

NASA's Stardust-NExT mission took this image of comet Tempel 1 at 8:39 p.m. PST (11:39 p.m. EST) on Feb 14, 2011. The comet was first visited by NASA's Deep Impact mission in 2005. Credit: NASA/JPL-Caltech/Cornell. Image brightened and enhanced by Ken Kremer to show additional detail.

Want to know what it feels like at close range to ride on a spaceship past a zooming comet that’s spewing dust and debris that could destroy you at any moment ?

Check out the movies (above & below) which gives you a front row seat at NASA’s newest ‘Comet Experience’. Hitch a ride on the rear of Stardust-NExT as it flew past Compet Tempel 1 at 9.8 km/sec, or 24,000 MPH.

The movie comprises the highest resolution images of the fleeting 8 minutes of the closest approach period that occurred between 8:35:26 p.m. to 8:43:08 p.m. PST on Feb. 14, 2011 (4:35:26 a.m. to 4:43:08 a.m. UTC, Feb. 15, 2011, according to the clock kept aboard the spacecraft).

Stardust started taking these the excellent quality photos at a distance of 2,462 kilometers (1,530 miles) away from the center of the comet and get to within 185 kilometers (115 miles). By the end of the movie, the spacecraft is 2,594 kilometers (1,611 miles) away from the center of the comet.

Think about it and the navigational precision required to pull off this feat. After a journey of near 6 billion kilometers (3.5 Billion miles) and 12 years, the highest quality science and images are captured in what amounts to an instant in time.

“And they did it with Math !”, exclaimed NASA Asspciate Admisistrator Ed Weiler at the post encounter briefing. Weiler exhorted school kids worldwide to study math and science if that want to accomplish great deeds.

Comet Tempel 1 was approximately 335 million kilometers (208 million miles) away from Earth and on the other side of the sun during the encounter. Tempel 1 is oblong in shape and has an average diameter of about 6 kilometers (4 miles).

The individual images are all online. Check out these alternate movie versions prepared by Dimitri Demeeter at Youtube and nasatech.net at the links below.

Here’s 1/10 sec with text

Here’s 1/4 sec with text

Here’s 1/2 sec with text

Here’s 1/10 sec w/o text

Here’s 1/2 sec w/o text

[/caption]

Highlights from the Comet Tempel 1 Post Flyby briefing

more Stardust goodies coming up

Read more about the Stardust-NExT Flyby and mission in my earlier stories here, here, here, here and here