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Genesis: Data in good condition
Oxidation writes "Space.com is reporting that the Genesis satellite crash isn't as bad as it appeared to be in the first place. Furthermore, a prime particle-gathering device "appears intact" states Don Sevilla. (Genesis payload recovery leader at NASA's JPL)"
Scientists and engineers are optimistic after having peeked inside the Genesis space capsule, which brought back bits of the Sun but crashed into the Utah desert Wednesday.
The craft was supposed to deploy a parachute and be retrieved in the air by a helicopter. Instead it broke apart on impact. Amazingly, scientists say, much of the contents -- microscopic particles that once rode the solar wind and are now embedded on shattered collector plates -- should be salvageable.
In a teleconference with reporters today, mission officials said contamination is their greatest worry, since desert dirt entered the capsule. They need to retrieve the Sun samples in pristine form. The goal is to learn more about the Sun's composition and the history of the solar system and planet formation.
The team might seek advice on handling the wafer-thin collector devices from the semiconductor industry, said Don Burnett, Genesis principal investigator from the California Institute of Technology.
Surprise
"We should be surprised that we have anything," said Don Sevilla, Genesis payload recovery leader at NASA's Jet Propulsion Laboratory (JPL).
Sevilla said experts are "peeling back the layers of the onion," using a flashlight and a small mirror on a stick to explore inside the fractured, garbage-can-sized capsule. A prime particle-gathering device "appears intact," he said, and another appears to be "in very good condition."
But pieces of the fragile collectors are "strewn about the canister," so scientists are being very methodical about extracting them.
"It is amazing given the amount of breach in the canister just how clean it is inside" Sevilla said. "We're not talking about great clods of dirt."
No timetable has been created for moving the science samples from a Utah facility to a NASA center for ultimate study. Sevilla said engineers are still busy collecting tools to do unexpected "sawing and snipping" that will take place over the weekend.
Genesis, which launched in 2001, carries a $264 million price tag.
The scientists said they were demoralized when they first saw the craft stuck more than halfway into the desert floor. Attitudes have changed.
"The science team is really excited," said Roger Wiens, flight payload leader from the Los Alamos National Laboratory. Wiens expects to "meet many if not all" of the mission's initial goals.
The investigation
Meanwhile, Sevilla said three pyrotechnic devices that were supposed to deploy the parachute system failed to trigger as planned. They have been "safed" to allow study of the capsule.
"None had been fired," he said. "This points to a command and control problem," not to any failure of the parachutes themselves.
NASA also announced today that Michael Ryschkewitsch, director of the Applied Engineering and Technology Directorate at NASA's Goddard Space Flight Center, would lead the Genesis Mishap Investigation Board (MIB) in an effort to determine the exact cause of the disaster. The group is due to report back in mid-November.
The optimistic assessment led one reporter to ask if future sample-return missions might forego the theatrics of using Hollywood stunt pilots to make mid-air retrievals of capsules, and instead simply design the shells to survive a freefall.
"The lessons from this one will affect all future sample returns," said Gentry Lee, a JPL engineer.
I think the engineers behind this one deserver a few pats on the back. Even though the parachutes never deployed and this thing fell to the Earth, there's still usable samples inside. Just goes to show that this thing was better built than a lot of stuff we use.
Actually it wasn't the parachute that was the problem. I it was the *battery* that was supposed to trigger an explosive charge the deploy the parachute that was the problem.
Should've gone with the Copper-Top! (TM) =)
Right is wrong when left is right.
For those not familar with American commercials, this is a reference to the auto insurance company, Geico, that has a string of advertisments similar to the above. It's actually quite annoying, but funny on Slashdot when used in this context.
"None had been fired," he said. "This points to a command and control problem," not to any failure of the parachutes themselves.
There are a number of octagonal (hexagonal?) discs, about five inches in diameter. These were exposed to space during the vessel's trip around the Solar System. The idea being that they should pick up samples of solar particles for analysis back here on earth. I'm not sure what the discs are made of, but a reporter demonstrated how very fragile they were by bending one slightly and watching it shatter into small pieces. I'm happy that they have got some intact discs, but I wonder about contamination with desert sand etc.
Reality is defined by the maddest person in the room
there was a junkyard wars episode where they had to build a rocket that would carry an ostrich egg and return it unbroken.
IIRC, the team that tried a radical teepee design lost because their parachute failed to open and the egg suspended in a pair of pantyhose in the crumpled nosecone got scrambled.
The winning team had a conventional design that had an impressive lift-off, had a nice recovery deployment and had a good payload compartment that protected the egg from the shock of landing.
There is much cruelty in the universe, John.
Yeah, we seem to have the tour map.
"They just saved a ton of money on their car insurance..."
:)
Over who, though? NASA employees had been eligible to get insurance from Government Employee's Insurance COmpany long before said company opened their doors to the general public, so maybe their rates aren't as good as they imply...
no i actually meant what i said.
/. readers need to go back and study basic gradeschool physics.
utah dust particles didnt impact the collectors at several km/s.
if that had actually happened, the probe would have been completely vaporized, there would have been a crater a hundred meters wide instead of a few meters. instead of the probe going 'crunch' as it did, there would have been a huge explosion, blast wave, and lots of dead bystanders.
the collector was sealed, and only broke open after the probe hit the ground at only 200km/h instead of several km/s.
so there's no problem after all.
+1 insightful? methinks some
The probe hit the ground at ~200km/hr or 0.05 km/sec. That doesnt sound like several kilometers per second to me.
The solor wind on the other hand was hitting the probe at say 3-4km/sec. Thats 14000km/hr. So... a pretty big difference then.
Like a poster below said, if genisis hit the desert at that speed there would have been a massive expolsion, and many dead bystanders