1
$\begingroup$

Right now EMM Hope, Tiangwen-1 and Mars2020 are on their way to Mars and ExoMars will go next time.

For these four spacecraft how many of them have any provisions to use solar power via photovoltaic panels during transit?

I know that Mars2020 will primarily use the Perseverance rover's RTG for electrical power but I don't know for a fact yet that there is zero photovoltaic power capability during spaceflight.

As far as the other three are concerned, I'm sure at least some do.

If there is solar power used during launch or insertion into the interplanetary trajectory, that will be interesting to know about, but my question is primarily about the long interplanetary voyage.

$\endgroup$
1
$\begingroup$

I would guess all four spacecrafts use solar power during transit.

Tianwen-1 seems to have solar power during cruise, see here:
https://space.skyrocket.de/doc_sdat/tianwen-1.htm

Hope spacecraft also has solar power (but here it says they will deployed "once in orbit"):
https://web.archive.org/web/20160322112234/http://www.emiratesmarsmission.ae/mars-probe/

Mars2020 also has solar panels during the cruise, see here:
https://mars.nasa.gov/mer/mission/spacecraft/cruise-configuration//cruise/

Exomars cruise stage also seems to have solar panels, see Figure 1 here:
https://directory.eoportal.org/web/eoportal/satellite-missions/e/exomars-2022

| improve this answer | |
$\endgroup$
  • $\begingroup$ Thanks for the brief but well-sourced answer! $\endgroup$ – uhoh Aug 19 at 16:31
0
$\begingroup$

All three probes use solar power for their trip. The NASA rover has solar panels on its cruise stage, solar power is the main power source during cruise.

| improve this answer | |
$\endgroup$
  • $\begingroup$ Thank you for your post and Welcome to Stack Exchange! Is it possible to support your conclusions by citing a source or providing a link to where this information comes from? It helps other readers judge if the answer is correct or not. Also I've asked about four spacecraft. $\endgroup$ – uhoh Aug 18 at 8:11

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.