David Shiga writes "Just when NASA was about to celebrate the 10th anniversary of the Mars Global Surveyor (MGS) spacecraft, the probe suddenly lost contact with Earth, New Scientist Space reports. NASA last heard from the MGS probe on November 5, two days before the 10th anniversary of its launch from Earth. The MGS team is not sure yet what the problem is, but a micrometeorite could have jolted the spacecraft's main antenna out of alignment with Earth, or it might have a solar array problem and too little power to talk to Earth as a result. If they can't re-establish communication this week, NASA may try to diagnose the problem by taking pictures of MGS with the Mars Reconnaissance Orbiter. The two spacecraft come within about 100 kilometers of each other several times each week."
I'd love to see a list of projects in table format that show either mission success or mission failure and the reasons behind the failure.
The vast majority of programs are failures but that's only because it's so dam hard. Sure there were a couple of DOH moments but not as many as just fate taking it's toll.
by Anonymous Coward
on Friday November 10 2006, @08:58AM (#16792968)
It's not necessarily that terrible a disaster -- the mission has been a great success and has lasted years beyond what was originally expected. If you are interested in such a table for Mars, though, someone has posted a nice one to wikipedia:
NASA has recently (since 2000 or so) had a string of successes which are essentially unprecedented in the history of the Mars exploration program -- continuing within the last few weeks with MRO.
The Mars Global Surveyor completed its primary 5 year mission in 2001. Of course, the hardest part of the mission was just getting there, so it was no surprise that it continued operating for additional 5 years, during which it has continued to be quite productive. Typically, space probes are operated until they no longer have fuel to manuever with, but it's always been an accepted possibility that a terminal condition could develop. For example, the Pathfinder lander's solar panels became coated with dust
Have you tried typing "list of mars missions" into www.google.com? Try it sometime. It's the third link down. I'd link to it, but I don't want to short you the education experience of using a search engine.
Working with US satellite programs, I have come to realize how hard it is to actually take care of a bird in flight. There are so much junk flying around in space that could take out your satellite, not to mention things like solar storms and such, all this you have to track and adjust for. Of course, something's you don't see coming.
I had been wondering why updates from Opportunity had been so scarce over the last couple of weeks, given that the rover has reached the most interesting part of its traverse.
The communication bottleneck created by the MGS problem may be partly to blame.
From about Oct 25 to Nov 10 Mars was on the the other side of the Sun.
The Suns radio noise effectively blocks transmission either way.
I notice Opportunity started returning images this week.
From about Oct 25 to Nov 10 Mars was on the the other side of the Sun. The Suns radio noise effectively blocks transmission either way. I notice Opportunity started returning images this week
Maybe the spotty comms is part of the reason for the apparent problem with MGS. Perhaps we should wait a while before being really worried.
This is a stunt to help promote the next Transformers movie. They'll probably send a video back to NASA showing the things last transmission [transformersmovie.com].
Bug [slashdot.org]. Actually, I guess technically, it was down for maintenance. The 2^24th comment triggered a bug in threading, which was easy to fix (change the data type on the "parent comment" field), but took hours to run. So they disabled threading entirely while they ran the database update.
I had been wondering why updates from Opportunity had been so scarce over the last couple of weeks, given that the rover has reached the most interesting part of its traverse. The communication bottleneck created by the MGS problem may be partly to blame.
Actually it is because Mars is nearly on the opposite side of the sun from Earth such that the sun interferes with transmissions between the two planets. Thus, the activity of Mars probes has been scaled way down for a few weeks until the sun moves out of the way.
by Anonymous Coward
on Friday November 10 2006, @04:01AM (#16791812)
For the "oh NASA can't do anything right" folks, keep in mind that Mars Global Surveyor finished its primary and extended missions years ago and has continued to operate as a communications relay aiding the Spirit and Opportunity rovers since then. It can only be described as an overwhelming success, especially considering its budget and trailblazing design.
Moreover, even if we discount MGS, NASA has 2 operational orbiters and 2 operational rovers on Mars (ESA also has an operational orbiter). With MGS, there had been 6 operational spacecraft on or around Mars, which is unprecedented in human history.
Just last month we learned that Spirit was bored out of its mind [theonion.com] with Mars. Obviously the rover has been passing time by trying out its throwing arm on some of those rock specimens it's been collecting.
Either that or it and Opportunity have started one-on-one baseball. You think your neighbors get mad when you hit the ball into their window -- that's nothing compared to what'll happen when NASA finds out Spirit took out MGS with a homer.
by Anonymous Coward
on Friday November 10 2006, @04:10AM (#16791840)
With Bush in office, Spirit and Opportunity lasted well beyond their life expectancy. Couple of days after the libs get Congress and Senate, space hardware begins to malfunction.
Ah, well. We'll never get to Mars anyway. When Hillary gets into office 2 years from now, the CEV will be scrapped along with the rest of the space program. More money for social programs and some token medical research.
But at least the internet will be finally reeled in and tightly controlled. It will be an improvement. No more slashdot. No more digg. No more indymedia. Only politically correct and copyright-friendly content from 2008 on. Can't wait.
OK so it's a bit busted (potentially) but isn't it great that there is another vehicle nearby that can take a look? We're talking about Mars here! It's stories like this that show we really are starting to get out there in a big way, none of this one probe every 5 years that then lands and dies in a couple of days.
Let's have a big hand for the human race, people..
This was actually one of my thoughts as well. We're starting to build up an ecosystem of equipment out there. MRO helping determine the problem with MGS. MGS acting a comm relay for the rovers, etc. This is where you can see that more pieces add flexibility to the system.
If they can't re-establish communication this week, NASA may try to diagnose the problem by taking pictures of MGS with the Mars Reconnaissance Orbiter.
It's clear what's going on... terrorists have taken over and are trying to steal it. What they'll actually do is send in an ex-black-ops operative called out of retirement, because he's dealt with this kind of thing before, and because his genetic twin is the mastermind. This should be obvious. It's what always happens when dealing with a... Metal Gear. But this time we're not on Solid ground. We're in Space.
terrorists have taken over and are trying to steal it.
Or the satellite has been pwn3d and the uplink is currently being used to send "enlarge your penis", "cialis", "I saw you online the other day and you look hot" and Nigerian emails to the entire world... I say we crash the MRO into it and do the world a favor!
Some of the Rover software initially just allowed three-digit dates.
Spirit reach 1000 Sols late October and Opportunity next week.
Fortunately the software was repaired during a winter slowdown tuneup.
Nice idea: reprogrammable robots.
Ahem.. TFA said they only passed each other within 100km several times a week. It's almost incomparable to the ~1000 functioning artificial satellites that are orbiting Earth (plus a few more thousand old satellites that are now classified as space debris) If you track the most notable ones with tools like http://www.heavens-above.com/ [heavens-above.com] then you would see that they pass each other several times a day...
The resolution of MRO is really simple to calculate: at 300km, you get 30cm/pixel. So at 100km, you'd get 10cm/pixel. I'm really looking forward to see that kind of image of MGS, but without contact, how long can they wait before the orbit becomes uncertain? Pointing would be really difficult IMO.
Never Mind... Finally found out why in the 'Older Stuff' sidebar...
Idea #2: Slashdot has a 'sticky article option' that's always at the top of the main page, so those of us who aren't on American Time, get to see the important stuff when we wake up.
mr2cents - it's been done before and while the timing is no doubt a bitch, it's quite possible.
linky [nasa.gov] One Mars Orbiter Takes First Photos of Other Orbiters
Photographs from NASA's Mars Global Surveyor spacecraft released today are the first pictures of any spacecraft orbiting Mars ever taken by another spacecraft orbiting Mars.
The communication bottleneck created by the MGS problem may be partly to blame.
As has been mentioned in another not-reply, the main reason for the dearth of new images from Opportunity is that Mars was at conjunction with the sun.
Even if this weren't the case, losing MGS won't put a major strain on rover communications. I don't have more recent numbers handy, but as of Jan 19 2005, MGS had only returned 7% of the data from the rovers compared to the Mars Odyssey relay which returned 90% (with the remaining 3% coming down directly from the rovers).
The MGS is 10 years old and a really great piece of technology but I am not surprised it failed at this point and I wondered if it was going to make it to 2008. Although it is a "downer" to have it fail, we should take advantage of it. We know what in MGS that is good and with 10 years of improvement we can make a new Mars Global Surveryor that did everything the old one did plus more.
It's obvious. NASA must have used binary coded decimal for the elapsed time of the mission with the top 4 bits representing the number of years. With the year reaching 10 an overflow happened...
Not another space accident!? (Score:4, Interesting)
I'd love to see a list of projects in table format that show either mission success or mission failure and the reasons behind the failure.
If anyone has a link, please post!
Would you really want that???? (Score:2)
The vast majority of programs are failures but that's only because it's so dam hard. Sure there were a couple of DOH moments but not as many as just fate taking it's toll.
Re:Not another space accident!? (Score:4, Informative)
Wikipedia on Exploration of Mars [wikipedia.org]
NASA has recently (since 2000 or so) had a string of successes which are essentially unprecedented in the history of the Mars exploration program -- continuing within the last few weeks with MRO.
Parent
Not a disaster at all...Successful Mission (Score:2)
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Working in the Space Industry (Score:2, Informative)
http://nasaexplores.nasa.gov/show2_articlea.php?id =01-074 [nasa.gov]
In addition, a satellite can go anywhere from 500 degrees to -500 degrees in a single orbit. Even with all this,
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martian RPG (Score:5, Funny)
That wasn't a "meteorite", and I can tell you that the martians probably don't like being spied on any more than we do.
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Opportunity (Score:5, Interesting)
I had been wondering why updates from Opportunity had been so scarce over the last couple of weeks, given that the rover has reached the most interesting part of its traverse.
The communication bottleneck created by the MGS problem may be partly to blame.
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no radio during Mars-Solar conjunction (Score:2)
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Maybe the spotty comms is part of the reason for the apparent problem with MGS. Perhaps we should wait a while before being really worried.
Can't Reply (Score:5, Funny)
It Was Michael Bay (Score:2)
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Re: Opportunity (Score:5, Insightful)
Actually it is because Mars is nearly on the opposite side of the sun from Earth such that the sun interferes with transmissions between the two planets. Thus, the activity of Mars probes has been scaled way down for a few weeks until the sun moves out of the way.
Keep in mind... (Score:5, Insightful)
Moreover, even if we discount MGS, NASA has 2 operational orbiters and 2 operational rovers on Mars (ESA also has an operational orbiter). With MGS, there had been 6 operational spacecraft on or around Mars, which is unprecedented in human history.
Calvin and Hobbes, anyone? (Score:3, Funny)
Spirit's been throwing rocks again (Score:5, Funny)
Either that or it and Opportunity have started one-on-one baseball. You think your neighbors get mad when you hit the ball into their window -- that's nothing compared to what'll happen when NASA finds out Spirit took out MGS with a homer.
It's all the Dems fault (Score:5, Funny)
Ah, well. We'll never get to Mars anyway. When Hillary gets into office 2 years from now, the CEV will be scrapped along with the rest of the space program. More money for social programs and some token medical research.
But at least the internet will be finally reeled in and tightly controlled. It will be an improvement. No more slashdot. No more digg. No more indymedia. Only politically correct and copyright-friendly content from 2008 on. Can't wait.
Gives me a warm feeling.. (Score:5, Interesting)
Let's have a big hand for the human race, people..
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Actually. (Score:5, Funny)
It's clear what's going on... terrorists have taken over and are trying to steal it. What they'll actually do is send in an ex-black-ops operative called out of retirement, because he's dealt with this kind of thing before, and because his genetic twin is the mastermind. This should be obvious. It's what always happens when dealing with a... Metal Gear. But this time we're not on Solid ground. We're in Space.
And we've got Snakes in Space.
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Or the satellite has been pwn3d and the uplink is currently being used to send "enlarge your penis", "cialis", "I saw you online the other day and you look hot" and Nigerian emails to the entire world... I say we crash the MRO into it and do the world a favor!
Re: Can't reply (Score:5, Funny)
That's not it. The spacecraft travelled 2^24 or 16,777,216 clicks, at which time the internal navigation turned into an unsigned mediumint.
They say they should be able to restore earth reply for the probe in 3+ hours. Otherwise, slashdotters will start probing for jokes.
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Rovers did have a "Y1K" issue (Score:3, Interesting)
Re:Orbital Traffic Jam... (Score:5, Interesting)
Resolution (Score:5, Informative)
Offtopic - Where have all the reply buttons gone? (Score:2)
Idea #2: Slashdot has a 'sticky article option' that's always at the top of the main page, so those of us who aren't on American Time, get to see the important stuff when we wake up.
-Jar.
RE: Offtopic - Where have all the reply... (Score:2)
I wrote a ksh cgi clone of slashcode for my family website and implemented the same sticky article feature. My article ID's are 32 bits :)
You can post anything you like in your journal and people can reply.
happy snaps in-orbit. (Score:5, Informative)
linky [nasa.gov]
One Mars Orbiter Takes First Photos of Other Orbiters
Photographs from NASA's Mars Global Surveyor spacecraft released today are the first pictures of any spacecraft orbiting Mars ever taken by another spacecraft orbiting Mars.
The new images of the European Space Agency's Mars Express and NASA's Mars Odyssey are available on the Internet from NASA at http://www.nasa.gov/vision/universe/solarsystem/m
Of course, if all they see is a smear of debris, well I guess they know they won't be getting any more data.
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RE: Opportunity (Score:5, Informative)
As has been mentioned in another not-reply, the main reason for the dearth of new images from Opportunity is that Mars was at conjunction with the sun.
Even if this weren't the case, losing MGS won't put a major strain on rover communications. I don't have more recent numbers handy, but as of Jan 19 2005, MGS had only returned 7% of the data from the rovers compared to the Mars Odyssey relay which returned 90% (with the remaining 3% coming down directly from the rovers).
Unintended consequences (Score:4, Funny)
YouTube knows what happened (Score:2)
Transformers? (Score:3, Funny)
Mars shot it down! (Score:2)
Mech Failures Happen, Take Advatage Of It (Score:2)
Give the poor thing a break! (Score:2)
Why now? (Score:2)
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It could if the warranty didn't account for the days added in the two leap years in this 10-year span.
Yeah, I'm suspecting a programming error not being able to handle the 3,651st day.