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Questions tagged [mars-orbiters]

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Orbit to Orbit Transport Stage

Would it be faster or cheaper to have a lander, SSTO, and/or Space X Mars rocket to rendezvous connect with a more efficient engine or "transport stage" or another lander, SSTO? When the spacecraft ...
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6answers
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How can a Mars helicopter be autonomous if there isn't a Martian GPS?

For a drone to be autonomous, it needs something like a GPS to be able to navigate. If it doesn't have GPS, you'd have to manually control it. Do the orbiters provide something like GPS then? I ...
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4answers
6k views

Why wasn't the Mars Climate Orbiter's fatal error caught prior to launch?

The Mars Climate Orbiter failed in 1999 due to: ground-based computer software which produced output in non-SI units of pound (force)-seconds (lbf·s) instead of the SI units of newton-seconds (N·s) ...
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2answers
327 views

Is it possible to deploy “geostationary” Mars orbiter?

Hypothetical question: Are we able launch an orbiter from Earth to Mars in a way that such orbiter ends on "geostationary" position, hovering always one specific place over Mars? My thought process ...
5
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1answer
947 views

What happened to the Viking 2 Orbiter?

What was the ultimate fate of the Viking 2 Orbiter? According to NASA: The orbiter developed a leak in its propulsion system that vented its attitude control gas. It was placed in a 302 x 33176 km ...
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2answers
669 views

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

My goal is to get a graph "spaceport latitude"<>"delta-v to reach mars". Using "Trajectory Optimization Tool" (Matlab one) I have successfully generated porkchop graph for Earth->Mars transfer. ...
8
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1answer
672 views

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

From Wikipedia, it seems the objective is to gain experience in Mars missions and taking some scientific observations. My question is, did ISRO scientists discover anything new from their observations?...
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1answer
725 views

After a trans-Mars transfer, what is the direction of the rotation of the orbit around Mars?

I'm not quite familiar with space exploration vocabulary. For the Apollo missions, the trajectory was figure-8-shaped. Thus, the direction of rotation of the Earth orbit was opposite to the one ...
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1answer
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Are NMAs (Near Mars Asteroids) common and useful for exploration?

Thousands of NEAs have been observed out of estimated 285,000 larger than 40 meters. A handful of Martian trojans have been found, but should there be more or fewer NMAs than NEAs? NEAs can become ...
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2answers
520 views

Methane detection on Mars by MOM?

It's been almost a month since the ISRO's Mars Orbiter Mission (MOM) was put into orbit. Though it doesn't carry much scientific payload, the one most talked about is the methane sensor, which even ...
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2answers
1k views

Can the satellites in Martian orbit be put to use providing a rudimentary GPS system on Mars?

This website conveys the impression a rover on the Martian surface necessarily navigates by dead-reckoning. Stereo images are used to determine how far a rover has travelled; an advancement over older ...
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Is the MARPOST (Mars Piloted Orbital Station) mission still in the works?

The Russian MARPOST plan in its simplest form, to me, sounds like a great idea: Establish a manned orbital presence around Mars before deploying humans to the surface. The Wikipedia article says that ...