Questions tagged [thermosphere]

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7 votes
1 answer

Could you observe air-drag on an ISS spacewalk?

The ISS orbits in the thermosphere and needs periodic re-boosts because of air-drag. At the other extreme, the slowest(?) fixed-wing aircraft are f1d planes made out of 2 grams of balsa wood, ...
Kevin Kostlan's user avatar
1 vote
0 answers

Is it possible to determine whether a spacecraft is in the thermosphere or in the exosphere?

The Earth's thermopause is varying greatly between 500 km (310 mi) and 1000 km (620 mi) altitude. If a craft orbits inbetween these altitudes, or reaches them at some point of their orbit, is there ...
Giovanni's user avatar
  • 633
5 votes
3 answers

If Steve is at 300 km, and SWARM is >440km, how did SWARM measure Steve's temperature?

How did ESA measure Steve's temperature using the SWARM spacecraft? Please explain how the measurement is really done, don't just mention an instrument's acronym. I did a quick dump of TLEs for ...
uhoh's user avatar
  • 149k
10 votes
1 answer

Could Steve have hurt the ISS?

The BBC News article Aurora photographers find new night sky lights and call them Steve says: A group of aurora enthusiasts have found a new type of light in the night sky and named it Steve. ...
uhoh's user avatar
  • 149k