What is the current maximum bandwidth between Mars and Earth (at their closest), accounting for any satellite/prober/orbiter that is either at Mars or already launched and en route?

So far I've found that the Mars Reconnaissance Orbiter can achieve up to 6 Megabits/second, but I haven't been able to find capabilities of newer missions such as the Mars Atmosphere and Volatile EvolutioN Mission or the ExoMars Trace Gas Orbiter.

  • 4
    $\begingroup$ The minimum distance from the Earth to Mars is about 54.6 million kilometers. The farthest apart they can be is about 401 million km. I think that makes a lot of difference. Can you edit and better define current? $\endgroup$
    – user10509
    Oct 4, 2016 at 8:19
  • $\begingroup$ What is average speed on a good day? What range ISRO MOM fall in that to its neighbour? $\endgroup$
    – Isrorian
    Oct 4, 2016 at 15:30
  • $\begingroup$ @JanDoggen, in this case current is in reference to currently launched technology as opposed to under-development/theoretical technology. I added '(at their closet)' to resolve the ambiguity around distance. $\endgroup$ Oct 5, 2016 at 2:53
  • $\begingroup$ The 6 Megabits per second are achieved over a distance of 100 million kilometers. $\endgroup$
    – Uwe
    Oct 24, 2016 at 9:01

1 Answer 1


There are 8 active Mars missions at the time of writing (11/14/17)

  1. Mars Odyssey

  2. Mars Express

  3. Mars Reconnaissance Orbiter

  4. Opportunity

  5. Mars Orbiter Mission

  6. MAVEN

  7. ExoMars Trace Gas Orbiter

  8. Curiosity

This is all the information that I could find on these missions, based on this the winner is the MRO at 5.22 Mbps, this makes sense as it's main mission is taking high-resolution images.

  • 1
    $\begingroup$ Really excellent answer! $\endgroup$
    – uhoh
    Nov 15, 2017 at 10:52
  • $\begingroup$ I would like to see the performance of uplink too. $\endgroup$
    – Uwe
    Mar 14, 2018 at 8:27
  • $\begingroup$ @ Mark Omo. I've proposed an edit for a new link to the Curiosity rover to make your answer even more valuable ! $\endgroup$
    – Cornelis
    Mar 26, 2018 at 17:02
  • $\begingroup$ @Conelisinspace Thanks! I went ahead and extracted the downlink information $\endgroup$
    – Mark Omo
    Mar 26, 2018 at 17:47

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