Many rovers have been sent to Mars and, as now, some are still working there. Does anyone know the maximum data capacity of each active rover?

  1. Curiosity
  2. Perseverance
  3. Zhurong
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    $\begingroup$ @NgPh - I supposed the opposite (max storage on board). Perhaps the OP could clarify? $\endgroup$
    – Jon Custer
    Sep 8, 2021 at 13:14
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    $\begingroup$ ...which would probably leave Ingenuity as the winner, as instead of robust, low-density, high-reliability radiation-proof antique memories it uses modern off-the-shelf components which quite likely go into hundreds of gigabytes. $\endgroup$
    – SF.
    Sep 8, 2021 at 13:42
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    $\begingroup$ ...found it. 32GB flash memory on Ingenuity. I wonder how the rovers compare to that. $\endgroup$
    – SF.
    Sep 8, 2021 at 13:51
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    $\begingroup$ Haha. Found data for Curiosity and Perseverance. Both have 2GB of flash. Now just to find out about Zhurong! $\endgroup$
    – SF.
    Sep 8, 2021 at 13:54
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    $\begingroup$ @HelloZero005: Perseverance's maximum data rate is 2 MBit/s over a distance of 55000000000 meters. The maximum data rate for WiFi when Perseverance was designed was, I believe, 11 MBit/s over a distance of 100m (maybe 54 MBit/s). Considering that signal strength degrades with the square of the distance, Transmitting data over 55000000000 meters is roughly 300000000000000000 times harder than over 100m. So, they managed to get 1/27 to 1/6 the data rate with 300000000000000000 times the signal attenuation. I think that's pretty good. $\endgroup$ Sep 10, 2021 at 7:52


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