25 votes
Accepted

Why didn't Ingenuity (helicopter) deploy immediately right after rover landing?

Why didn't Ingenuity (helicopter) deploy immediately right after rover landing? For many reasons. Number one is that helicopter is an experimental (i.e., not mission-critical) item. Mission-critical ...
David Hammen's user avatar
23 votes
Accepted

Why did NASA release Perseverance (rover) videos with a stop motion effect?

This animated gif is comprised of images that were acquired by the Navigation Camera (Navcam) located on the rover mast, part of the Mastcam-Z instrument. Mastcam-Z is capable of acquiring videos (...
apogalacticon's user avatar
23 votes
Accepted

How did the Ingenuity helicopter clear tests even without being deployed on Mars?

As of today, the debris shield has been dropped. The "tests" discussed in the article are electrical, computer, and sensor tests. Nothing mechanical (other than dropping the shield) has ...
DrSheldon's user avatar
  • 47.9k
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
13 votes

How did the Ingenuity helicopter clear tests even without being deployed on Mars?

So How did ingenuity helicopter clear tests even without being deployed on Mars? The linked article claims that Ingenuity has "cleared multiple system checks". By way of analogy, human ...
David Hammen's user avatar
9 votes
Accepted

How much oxygen can MOXIE produce?

The answer is up to around 10g/hour. The experiment will be run multiple times throughout the lifetime of the rover and each run will be for about an hour. A full scale version for use on a human ...
Slarty's user avatar
  • 9,212
5 votes
Accepted

How to get MARS2020/Perseverance EDL trajectory data from spice kernels?

This folder contains SPICE kernels for MARS2020: https://naif.jpl.nasa.gov/pub/naif/MARS2020/kernels/spk/ These SPK kernels contain planned EDL trajectory (prepared before actual landing): https://...
jumpjack's user avatar
  • 3,033
3 votes
Accepted

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
3 votes
Accepted

Were the distances traversed by Perseverance on Sol 718 and 719 each exactly 415.27 m or were they added together 415.27 m and if so, why?

Partial answer: I don't believe this was a continuous drive, because NavCam images are provided for the end of the Sol 718 drive. Paul Hammond, one of the community contributors on r/...
Erin Anne's user avatar
  • 10.8k
2 votes

How much oxygen can MOXIE produce?

since the question was answered properly, I wanted to add a tidbit I learned at a JPL event. MOXIE produces enough oxygen to keep a small dog alive.
shizuka's user avatar
  • 839
2 votes

How did the Ingenuity helicopter clear tests even without being deployed on Mars?

The question now asks how Ingenuity was able to "clear tests" before being deployed to Mars. Both previous answers have discussed some of the testing regimes, but neither addressed actual ...
DavidRecallsMonica's user avatar
2 votes

How is parachute cover during Mars EDL prevented from crashing onto parachute or lander upon parachute opening?

This perhaps isn't the most useful answer, but from what research I've been able to do it seems that nobody cares. This seems weird, given the risk to the parachute, if nothing else. I can only ...
Starfish Prime's user avatar

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