21 votes
Accepted

Did the Curiosity and Perseverance rover brains do the driving from Earth to Mars?

Yes and no. The no part first: Mars 2020 had sensors and effectors attached to the non-important parts of your diagram, many of which had various degrees of smarts. Star trackers are very ...
David Hammen's user avatar
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7 votes
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What is the equivalent of Curiosity's "MSL" in the context of Perseverance? What's the official name of the mission? Are the distinctions similar?

According to my extensive research on the topic, Mars 2020 is the name of the mission; Mars 2020 is to MSL as Perseverance is to Curiosity, but the Mars 2020 mission also includes the Ingenuity drone, ...
Russell Borogove's user avatar
7 votes
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Which potential landing sites were identified at the MSL Landing Site workshops?

As far as I can tell, the 50 figure is somewhat erroneous/only approximate which is (understandably) caused by the confusing way the proposed landing site list changed during the selection process. I'...
Jack's user avatar
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7 votes
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Are there fluid disconnects that sever just before the Curiosity or Perseverance rovers separate from their cruise stages or landers?

There was a fluid loop that transferred heat from the RTG to cruise stage components, as shown in these diagrams. Source: Thermal Control of MSL Rover 'Curiousity" Using an Active Fluid Loop The ...
Organic Marble's user avatar
5 votes

Are there fluid disconnects that sever just before the Curiosity or Perseverance rovers separate from their cruise stages or landers?

See lower centre of pic, cylindrical thing is umbilical cutter, next to that is grey blocky thing being the point of attachment of support cable with cutter in block, next to that is a bunch of ...
giles tester's user avatar
5 votes
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Does the Mars2020 lander need a new parachute design?

NASA explains some of the answer. Curiousity did use a parachute in the early phases of its descent, and Mars 2020 will use a skycrane for touchdown. The difference is "Range Trigger" -- Mars 2020 may ...
Steve Linton's user avatar
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5 votes
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Why is this "grainy footage" of a Martian (sky) from Curiosity so grainy? Cloud snaps by Opportunity look great!

The Martian atmosphere is rather thin, and opacity is rather low. The sensitivity (ISO) needs to be cranked up to see the Martian sky at all. This alone will create some amount of graininess. Even ...
David Hammen's user avatar
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5 votes
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Did the Mars Science Laboratory do any science that wasn't done by Curiosity proper?

There were some instruments attached to the heatshield that took measurements of the atmosphere during the entry, descent, and landing phase. This suite was referred to as MEDLI (MSL EDL Instruments). ...
Elezar's user avatar
  • 173
5 votes

Which potential landing sites were identified at the MSL Landing Site workshops?

Have a look at this page, with links to MSL Landing site Workshops. It has the 33 landing sites list of the first workshop. There's also a link to the presentations of the second workshop. The "...
BlueCoder's user avatar
  • 2,113
4 votes
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Where does MSL end and Curiosity begin?

The name of the entire mission is MSL, the Curiosity rover is part of that mission, and the only part operational today. Example of how NASA uses the two names: Mars Science Laboratory arrived at ...
Hobbes's user avatar
  • 128k
4 votes

Do aeroshells really get hotter than the surface of the sun?

This article says 1,930°C (2,200K) for Curiosity, which seem in line with peak Orion and Apollo values from this answer, 2,200°C (2,470K) and 5,000°F (3,000K). As such, the surface material does not ...
SE - stop firing the good guys's user avatar
3 votes
Accepted

What are transonic oscillations (wrist mode) and would Schiaparelli have been transonic at 2 to 4 km altitude?

Wrist mode: These large changes in parachute loading can couple with the “wrist mode” of the (MSL) entry body where, as the two bodies descend, the entry body rotates about its center of mass. ...
Hobbes's user avatar
  • 128k
3 votes
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When the Mars 2020 and Mars Science Laboratory missions were in deep space, what antennas did they have available to communicate with Earth?

From the DESCANSO MSL Article, cruise communications were done with a medium-gain antenna (MGA) and a low-gain antenna (PLGA). The spacecraft was spin stabilized: the interplanetary trajectory ...
BrendanLuke15's user avatar
3 votes

Did the Curiosity and Perseverance rover brains do the driving from Earth to Mars?

Short answer: yes. Long answer is here (Thermal Response of the Mars Science Laboratory Spacecraft during Entry, Descent and Landing - Keith S. Novak): Flyaway Segment: at E+431 sec (see Figure 6) ...
jumpjack's user avatar
  • 3,033
1 vote

How to retrieve MSL EDL trajectory using Javascript and webgeocalc API?

After dozens of test, I found the way. Payload to be sent over POST query: ...
jumpjack's user avatar
  • 3,033

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