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16 votes

Will the HiRes camera of the Chinese orbiter be capable of seeing the shadows of the landers and rovers on Mars?

Will the HiRes camera of the Chinese orbiter be capable of seeing the shadows of the US landers and rovers on Mars? tl;dr: Yes it can, IF it passes over one of them, and at the right time of day for ...
uhoh's user avatar
  • 149k
9 votes
Accepted

What have been India's Mars mission's benefits to science?

Other than taking images of Mars' moon Deimos far side (something not done in decades) not much has been attributed to MOM yet. The key here is to remember that the the orbiter likely won't discover ...
ventsyv's user avatar
  • 1,506
8 votes
Accepted

Is secure communication in space important?

This question is not actually related to space, except insofar as comms in space could be picked up from anywhere on Earth (as opposed to surface comms which may be limited to line of sight or short ...
Rory Alsop's user avatar
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6 votes
Accepted

Is there any central world organization which authenticate achievement of various space agencies missions?

No. Some spaceflight records are authenticated by the FAI (Fédération Aéronautique Internationale) under its sub-body FAI Astronautic Records Commission but these are generally highest/longest/...
Organic Marble's user avatar
5 votes

Methane detection on Mars by MOM?

I think they had an issue with the methane sensor. From India's Mars Orbiter Mission Has a Methane Problem: The problem has to do with how the instrument collects and processes detections of methane ...
MyTwoCents's user avatar
5 votes

Why is MOM in a very retrograde orbit?

According to the abstract Target Martian Orbit Selection for ISRO Mars Orbiter Mission, a number of constraints were taken into account: The other orbit parameters of Inclination, Right Ascension ...
Russell Borogove's user avatar
4 votes
Accepted

MOM's NOT-so-sun-synchronous orbit about Mars - how large is it's J2?

The planet calculator lists a J2 of $0.001960454$ for Mars, higher than the Earth's $0.001082627$. That makes sense, as Mars has a smaller mass, but still approximately the same rotation rate. That ...
SE - stop firing the good guys's user avatar
2 votes

MOM's NOT-so-sun-synchronous orbit about Mars - how large is it's J2?

@SE - stop firing the good guys's answer states MOM is not in a sun-synchronous orbit. I just though I'd add some math to that. Using the equation for rotation of ascending node posted by @MarkAdler, ...
uhoh's user avatar
  • 149k
2 votes

Is secure communication in space important?

It isn't as important as you would think, unless you are doing military type stuff. Here's a list of things that you would need to know to uplink to the satellite: The frequency (Fairly easy) ...
PearsonArtPhoto's user avatar
  • 121k
1 vote

Is there any live classes for learning about Mars and Universe by professionals?

I'm not aware of any structured courses for a 10 year old, but that doesn't mean they don't exist. In the meantime I would recommend your son watch good quality documentaries, such as those produced ...
Fred's user avatar
  • 13.1k
1 vote
Accepted

Earth->Mars: Porkchop, departure burn and orbit inclination

In addition to the C3 for any given pair of departure and arrival dates, you will also need to know the departure declination for that pair. (The Lambert solver you are using must be generating that ...
Mark Adler's user avatar
  • 58.2k
1 vote

Why should space probes have to orbit the Earth before being launched at other planets?

The New Horizons probe, if I read the Wikipedia article correctly, did not stay in its parking orbit for a full orbit. Less than 45 minutes after launch, it was already on its solar escape trajectory. ...
Mark Foskey's user avatar

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