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Questions tagged [maintenance]

Questions regarding ongoing repairs made to spacecraft and satellites to keep them in working condition.

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Fast spining solar cells to clear Martian dust possible?

I've seen a fast spinning glass wheel used in front of a camera to clear away water, dust or ice. Could Solar panels be made circular and spin to clear dust off of them in the same way may? As ...
5
votes
1answer
155 views

What kind of condition do Orbital Replacement Units (ORUs) keep while mounted on the outside of the ISS?

In a recent question, uhoh asked about a dish mounted on the outside of the International Space Station (ISS): What is the function of this (apparently) fixed dish on the ISS? This turned out to be ...
5
votes
1answer
191 views

Has there been any program to develop tiny pod-like vehicles with manipulator arms for extra-vehicular activities?

Remember the pressurized repair / assembly pods from 2001 A Space Odyssey and so many other space visionary works? Has there been any programs to design & build tiny vehicles like that with ...
3
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1answer
263 views

Space maintenance after Space Shuttle Program Shutdown

I was wondering, what if one of the satellites that were previously serviced by the space shuttle, like the Hubble Space Telescope, needs repairs now that the shuttle program is off? Are there other ...
10
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2answers
464 views

Can Soyuz be used to perform maintenance on satellites

The Space Shuttle made several servicing mission for satellites, most famous ones would be to service Hubble. Would theses kinds of operations be feasible with a Soyuz spacecraft ? Would it be ...
4
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1answer
388 views

How many man-hours are spent on International Space Station's maintenance?

What is the cost, in man-hours per month, of ISS maintenance? I am looking for the actual time, not the dollar figure. What the governments of the world pay versus what the private sector will be able ...
9
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3answers
296 views

What causes the costs of operating an existing planetary mission?

I read on the Planetery Society blog that it costs USD 25 million this year to maintain the Opportunity rover on Mars and the LRO Lunar orbiter. I would like to see a break down of those budgets. I ...
8
votes
1answer
606 views

Why did NASA assess 3 separate and over 6 hours long EVAs are needed to replace a single failed Pump Module (S1 PM)?

I'm currently following US EVA-24 with Rick Mastracchio (EV1) and Mike Hopkins (EV2) tasked to replace a failed Pump Module (S1 PM), one of two external pump modules of the US section of the ...
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3answers
1k views

How often are ISS computers (MDMs) replaced?

The electronic "heart" of the International Space Station are the Multiplexers-Demultiplexers (MDMs) located within & outside the pressurized modules. How often are they replaced? (An ideal ...