Odyssey mission status |
Odyssey mission status |
Apr 8 2007, 11:27 AM
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Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
http://mars.jpl.nasa.gov/odyssey/newsroom/.../20070327a.html
Engineers for NASA's Mars Odyssey mission are examining data from the orbiter to determine whether onboard backup systems never used by the 6-year-old spacecraft could still be available if needed. Odyssey reported last week that a power processing component of the backup, or "B-side," systems had stopped working. The component, the high-efficiency power supply, has a twin that is continuing to serve the "A-side" hardware, which is operating normally. Odyssey has stayed on its A-side systems, including the A-side flight computer, since launch on April 7, 2001. However, the A-side power supply cannot serve most systems on the B-side, including the backup B-side computer. If engineers do not determine a way to restore the B-side power supply, most of the backup hardware would not be available, if it were ever needed. Odyssey is in its second extended mission. The orbiter is conducting scientific observations and also serving as the primary communications relay for NASA's Mars rovers. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the Mars Odyssey Project for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft. I hope Odyssey is not one failure away from another MGS-type loss because of this. |
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Dec 26 2021, 08:47 PM
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#2
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Member Group: Members Posts: 715 Joined: 22-April 05 Member No.: 351 |
The recent NASA Planetary Science Advisory Committee had an update on the rovers (see attached screenshots). All are doing well and the most of the fleet has the resources to remain functional through at least this decade.
ODY has about 10 years fuel remaining. MRO 19 years (likely something else will fail before that?). No firm data for MAVEN, but I believe that the bus is largely a copy of MRO, so I presume it carried substantial fuel reserves to Mars. Slide says fuel usage planned to allow operations through 2030. Mars Express, though, has extremely low fuel reserves. -------------------- |
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Dec 27 2021, 08:35 AM
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#3
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Member Group: Members Posts: 255 Joined: 28-October 12 Member No.: 6732 |
Mars Express, though, has extremely low fuel reserves. Low propellant level is not the largest immediate danger for Mars Express, it's a bureaucratic one, Mars Express is still slated for termination at the end of 2022, the decision for an extension into 2023-2025 - awaited early next year - "is NOT granted". [Edit] Regarding the propellant issue: "The fuel is still a (literal) unknown quantity since, in the worst case, it should have run out in 2016. But Mars Express keeps on ticking, and Godfrey, using Venus Express as a model, reckoned that there was a chance that what is left (possibly 5.6kg) might last until 2035." (The Register, 2 Jun 2021) |
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