Linked Questions

1 vote
0 answers
54 views

Why are the big solar panels on the ISS orientated away from the Sun? [duplicate]

While looking at this picture below from another question I notice all the panels are not facing the Sun. Why is that?
Muze's user avatar
  • 1
20 votes
1 answer
6k views

How often does the ISS orbit align with the day/night terminator?

In the following image (coming from SAT-Flare) you can see the orbit of the ISS (in red) and the day/night terminator (in blue). The terminator separates night from day along the surface of the Earth. ...
Stu's user avatar
  • 5,928
9 votes
2 answers
3k views

How does the ISS adjust its solar panels?

Solar panels must be always exposed in the direction of sun to produce maximum power. Since the ISS orbits the Earth, if the panels are fixed they will not produce maximum power (often fluctuating). ...
Hash's user avatar
  • 18k
10 votes
2 answers
2k views

How hard does atmospheric drag push on the ISS? Is it more than one pound?

A comment under this question has me thinking; with it's huge main structure and giant solar panels the ISS presents a very large cross-section to Earth's rarified atmosphere at 400 km altitude. So ...
uhoh's user avatar
  • 149k
5 votes
2 answers
1k views

How are the silicon PV cells constructed in the ISS's solar panels? Are they as flexible as they appear here?

My understanding is that the ISS's solar panels are silicon and double sided to maximize bang-for-the-pound (average power per kilogram transported to orbit). See Are the ISS US Segment solar arrays ...
uhoh's user avatar
  • 149k
8 votes
1 answer
1k views

How are solar panels protected from the Sun?

In 2003, JAXA sent a probe, Hayabusa, to an asteroid named Itokawa. On the way to the asteroid, there was a large solar flare which damaged the probe's solar cells. I've been searching through the ...
duzzy's user avatar
  • 7,174
4 votes
1 answer
2k views

Why do the ISS' Thermal Rotary Radiators need to tilt?

This answer shows the first image below of a vintage view of the ISS. Only one of each triplet of thermal radiators is extended from each TRRJ. The ISS' solar panels articulate to modulate the ...
uhoh's user avatar
  • 149k
4 votes
1 answer
447 views

Did the Space Shuttle crew have to worry about monatomic oxygen?

Comments below this answer tell us that the Space Shuttle always remained in Earth's atmosphere. When it visited the Hubble Space Telescope or the ISS or Mir it was still in the thermosphere and ...
uhoh's user avatar
  • 149k
3 votes
1 answer
744 views

Is ISS ever visible at all on the earth, unaided, by full moon moonlight alone?

Assuming ideal conditions of moonlight and phase angle, is the ISS ever even slightly 'visible' by full moon moonlight alone, that is to say, when the station is not in direct sunlight at all, but ...
always_learning's user avatar
4 votes
2 answers
348 views

Is the ISS going to yaw and assume the XPOP attitude for Nauka docking?

I noticed this in the launch of Nauka MLM to the ISS. (Previously I had assumed it would dock in a similar manner to Progress or Soyuz, that is coming from behind and underneath - this says the ...
blobbymcblobby's user avatar
4 votes
1 answer
371 views

Can the solar panels on satellites (such as Juno) rotate?

Can the solar panels on deep space satellites (specifically Juno) rotate? Do the antennae on deep space satellites (specifically New Horizons) rotate? Or is everything static and the entire satellite ...
Erin's user avatar
  • 41
5 votes
0 answers
189 views

Does the ISS currently use "night glider mode" as part of its solar array positioning plan?

I've seen several references on the site to a mode of ISS solar array position management called "night glider" where the solar arrays are turned to minimize drag when the ISS is on the ...
Organic Marble's user avatar
3 votes
0 answers
147 views

ISS propagation becomes much more accurate with reduced drag. Any ideas why?

I have currently been testing my implementation of a numerical propagator with the ISS. Without going into much details, the propagator considers Earth gravity (with the GGM03S model including zonal, ...
Rafa's user avatar
  • 1,750
5 votes
0 answers
96 views

Which LEO satellites have publicly available accurate position information? [duplicate]

I am working on a orbit propagation project and need accurate position information of LEO satellites. I have until now used Sentinel 3A/3B (~800 km altitude), whose ECEF coordinates I can get with a 1 ...
Frederik's user avatar