Astrosat - find maximum delay of light arrival from moon

AI Thread Summary
The discussion centers on calculating the maximum delay in light arrival from the Moon to the ASTROSTAT satellite, which orbits at an altitude of 800 km. Participants question whether simply adding 800 km to the Moon's distance from Earth and dividing by the speed of light is sufficient for accurate calculations. They highlight the need to consider factors such as the orbital planes of the satellite and the Moon, as well as potential eclipses that could block light from the Moon. There is also a request for guidance on the next steps after determining the satellite's velocity. The conversation emphasizes the complexity of the problem beyond a straightforward calculation.
ritwik06
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ASTROSTAT satellite of 2 meter diameter will be in space in 2007. If it revolves around the earthat an altitude of 800 Km, find the maximum delay in light arrival from Moon at the satellite at different locations.

Is it as simple as adding 800km to distance of moon from Earth and dividing it byspeed of light?
 
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ritwik06 said:
ASTROSTAT satellite of 2 meter diameter will be in space in 2007. If it revolves around the earthat an altitude of 800 Km, find the maximum delay in light arrival from Moon at the satellite at different locations.

Is it as simple as adding 800km to distance of moon from Earth and dividing it byspeed of light?

That depends. Do the satellite and the moon orbit in the same plane? If so, do you need to take into account the fact that for a part of the time the moon will be eclipsed by the Earth from the satellites view and light from it can't reach the satellite at all at this time?
 
Janus said:
That depends. Do the satellite and the moon orbit in the same plane? If so, do you need to take into account the fact that for a part of the time the moon will be eclipsed by the Earth from the satellites view and light from it can't reach the satellite at all at this time?

Well, Whats the same plane?? It wasnt specified whether the eclipse period should be taken in accout. What if I try to calculate it both ways?
 
Please help me soon. If I get the velocity of this satellite, then what should I do next?
 

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