New NOAA weather satellite - GOES-17 has degraded vision

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Peartree

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Although the launch was successful, as they do test runs on the new GOES-17 weather satellite, it seems that all is not well. Apparently the cooling system is not functioning as it should so nearly all of its 16 infrared channels used at night are not working properly. Although those channels are used at night to view the darkened earth, the satellite itself remains in daylight. There are currently lots of engineers trying to figure out a solution. Full article is here: https://spaceflightnow.com/2018/05/23/noaas-new-goes-17-weather-satellite-has-degraded-vision-at-night/

But that brings to mind an odd question. This is in a high geosynchronous orbit. Everyone knows that the space shuttle couldn't reach that altitude (24,000 miles) to do any satellite maintenance, but once the Falcon 9 is man-rated, would such a thing the technically possible? Sure it would wildly expensive, but SpaceX is talking about $90 million launches and for a satellite that costs hundreds of millions already, that might be something to be considered. I doubt it in this case, but it just got me thinking. Would such a thing be possible? Does Falcon 9 (or even Falcon Heavy, but a man rated Falcon Heavy is a long way off) has more capability, altitude-wise, to make geosynchronous maintenance possible?
 
To get something into that high of a (nearly) circular orbit takes X amount of fuel to get from parking orbit velocity up to geosynchronous orbit velocity. To slow it down enough to come back to Earth would take the same (or close to it) amount of fuel. I think that is the limiting factor in how far away a maintenance flight can be.

You have to have a little over X amount of fuel when you're done which requires much more than 2X onboard when you leave parking orbit because you're adding extra fuel to accelerate the extra fuel. There's no way that a Falcon 9 could do it alone, but maybe there could be multiple flights to link together some fuel tanks that would allow it.

In the case of the moon missions they were on highly elliptical orbits that would bring them into the path of the moon, or back to Earth, not circular. That's not the same type of mission we have here.
 
But that brings to mind an odd question. This is in a high geosynchronous orbit. Everyone knows that the space shuttle couldn't reach that altitude (24,000 miles) to do any satellite maintenance, but once the Falcon 9 is man-rated, would such a thing the technically possible?
I look forward to the day when satellites are specifically designed to allow robotic servicing when it is economically advantageous to do so, obviously. Each of the new GOES cost $500 million not including development costs. Low orbit $Billion LEO sats would be the first to benefit from this, especially spysats that use fuel to maneuver for the correct illumination timing over new targets. I suspect this could be one of the X-37B test missions if and when they launch it into polar orbits from Vandenberg:

Satellite Servicing Projects Division

https://sspd.gsfc.nasa.gov/

[video=youtube;gJ-axdJB-UM]https://www.youtube.com/watch?v=gJ-axdJB-UM[/video]

[video=youtube;CSErB9H5-qY]https://www.youtube.com/watch?v=CSErB9H5-qY[/video]
 
There were some nice features with the Space Shuttle for on-orbit service that no longer exist anywhere. There was a Shuttle mission to the Hubble that put in replacement optics to correct some earth-based quality errors. There was another Shuttle mission in which an entire faulty satellite was retrieved and brought back down to earth for repairs. Definitely, some kind of in-orbit robotic repair capability is now needed. It seems that faulty satellites are occurring all the time.
 
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