NASA’s Perseverance Mars rover

NASA’s Perseverance Mars rover

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Discussion

Eric Mc

122,053 posts

266 months

Wednesday 14th April 2021
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I cannot recall of any attempt by anyone to sabotage a space probe by messing about with its software.

NASA has upgraded programmes and made running repairs on spacecraft software by uploading software when necessary.

MartG

20,691 posts

205 months

Wednesday 14th April 2021
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Very few countries have the infrastructure to do it - a dish the size of Goldstone is rather hard to hide

bmwmike

6,954 posts

109 months

Thursday 15th April 2021
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Eric Mc said:
I cannot recall of any attempt by anyone to sabotage a space probe by messing about with its software.

NASA has upgraded programmes and made running repairs on spacecraft software by uploading software when necessary.
Yep, but organisations tend not to publish attempts, and only publish actual breaches when required to do so through regulations etc and even then, the bare minimum so i'm not sure how much info would be in the public domain anyway.

Also the past is not necessarily a guide to the future. I'd imagine that NASA take technology security of the entire operational process pretty seriously, or at least have a good understanding of existing and emerging threats for the life span of a particular project. I'd just love to know the details, which (to my first point) orgs tend not to publish that either. smile






CrutyRammers

13,735 posts

199 months

Thursday 15th April 2021
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I'm not sure whether to be encouraged or despairing to see that what must be the most rigid, process driven, Tested to the nth degree, bit of software, still ends up needing a last minute patch before go live.

bmwmike

6,954 posts

109 months

Thursday 15th April 2021
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CrutyRammers said:
I'm not sure whether to be encouraged or despairing to see that what must be the most rigid, process driven, Tested to the nth degree, bit of software, still ends up needing a last minute patch before go live.
Presumably so anyway. Perhaps its something environmental which has shown up and once they got some actual data relayed back, they re-ran the tests and found that it would require updated data or logic in order to be a success.

Smiljan

10,868 posts

198 months

Thursday 15th April 2021
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It's really not unusual for things designed and tested to death to fail in different ways when deployed for real. At least they had contingencies in place.

From this it says they send software to the rover then to the base station which is on the rover then to the chopper.

https://mars.nasa.gov/technology/helicopter/status...

The base station is the gold coloured unit circled in blue



DeejRC

5,809 posts

83 months

Thursday 15th April 2021
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Can I say something like: Yes, all this st is thought about and stuff done to deal with and mitigate...and ppl just nod and say ok. Without it descending into the usual PH rancour, questioning and demands of evidence?

If anybody wants to be really bored about aero/space software go and read Q-80 and/or 178C. No, I mean really really bored!

bmwmike

6,954 posts

109 months

Thursday 15th April 2021
quotequote all
DeejRC said:
Can I say something like: Yes, all this st is thought about and stuff done to deal with and mitigate...and ppl just nod and say ok. Without it descending into the usual PH rancour, questioning and demands of evidence?

If anybody wants to be really bored about aero/space software go and read Q-80 and/or 178C. No, I mean really really bored!
What are you on about? who is demanding evidence?

CrutyRammers

13,735 posts

199 months

Friday 16th April 2021
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bmwmike said:
What are you on about? who is demanding evidence?
I confess I didn't really understand Deej's post.
Mine was supposed to be light-hearted. Working in software myself, it's sadly far too common for apparently obvious bugs to only become apparent just as things go live. The usual answer to that is for more rigourous processes around changes and testing. To see something which surely has the most rigourous processes and testing suffer the same issues...well it partly makes me sad, but also, a little vindicated.

Beati Dogu

Original Poster:

8,896 posts

140 months

Sunday 18th April 2021
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MartG

20,691 posts

205 months

Sunday 18th April 2021
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They're trying again with it tomorrow apparently

Eric Mc

122,053 posts

266 months

Monday 19th April 2021
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It's now happened and they are downloading data from the test. So far, the signs are that it worked - but more data needs to come in to be absolutely sure.

Eric Mc

122,053 posts

266 months

Monday 19th April 2021
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Lots of smiles and clapping in the control room - looking good.

And the first pictures are now in.

SpudLink

5,853 posts

193 months

Monday 19th April 2021
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Yay!

Eric Mc

122,053 posts

266 months

Monday 19th April 2021
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There was a song in the early 1960s called "The Martian Hop". They should be playing it.

And now some video smile

xeny

4,309 posts

79 months

Monday 19th April 2021
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I like the way she tore up the contingency speech. :-)

Eric Mc

122,053 posts

266 months

Monday 19th April 2021
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I knew straight away what that was.

AW111

9,674 posts

134 months

Monday 19th April 2021
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Very tense atmosphere there as the data came in - I found myself holding my breath there for a while.

xeny

4,309 posts

79 months

Monday 19th April 2021
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AW111 said:
Very tense atmosphere there as the data came in - I found myself holding my breath there for a while.
Years of your life/career on a success or fail after having been caught out a week ago with a software problem.

That team can now hope to move on to bigger things in the future.

Blackpuddin

16,553 posts

206 months

Monday 19th April 2021
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Which apparently includes Dragonfly, a helicopter mission on the Saturn moon Titan, scheduled for the mid-2030s.