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NASA's Voyager Team Focuses on Software Patch, Thrusters

jpl.nasa.gov

11–20 of 53 posts

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#11

Is it just me that really wants to FOIA the firmware code to read it? What is it written in? Assembler, surely? What is the development toolchain like in 2023 for a 70s computer? Do they have an emulator? What happened to the spare development Voyager they had lying around?

Not Voyager but here’s code from the Apollo program: https://github.com/chrislgarry/Apollo-11/

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#12
post #2

Now this is hackernews. Imagining working on spacecraft where no human made thing has gone before. Also is this correct? >NASA extended the mission so that Voyager 2 could visit Uranus and Neptune; it is still the only spacecraft ever to have encountered the >ice giants Aren’t they gas giants? I mean they are probably very cold, but usually they are called gas giants.

> Aren’t they gas giants? I mean they are probably very cold, but usually they are called gas giants. "Ice giant" seems to be the more modern terminology: An ice giant is a giant planet composed mainly of elements heavier than hydrogen and helium, such as oxygen, carbon, nitrogen, and sulfur. There are two ice giants in the Solar System: Uranus and Neptune. In astrophysics and planetary science the term "ice" refers…

Astrophysicists have some funny conventions. Like how everything but hydrogen and helium are "metals": https://planetary.s3.amazonaws.com/web/assets/pictures/20120...

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#13
post #2

Now this is hackernews. Imagining working on spacecraft where no human made thing has gone before. Also is this correct? >NASA extended the mission so that Voyager 2 could visit Uranus and Neptune; it is still the only spacecraft ever to have encountered the >ice giants Aren’t they gas giants? I mean they are probably very cold, but usually they are called gas giants.

> Aren’t they gas giants?

Uranus is for sure.

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#14
post #7
post #6

There's a great ROI on these, I don't know why we're not sending more just like it with updated packages.

That's because the planetary alignment that let us send them only happens once every 175 years. https://en.m.wikipedia.org/wiki/Grand_Tour_program

> let us

New Horizons would like to have a word.

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#15
post #2

Now this is hackernews. Imagining working on spacecraft where no human made thing has gone before. Also is this correct? >NASA extended the mission so that Voyager 2 could visit Uranus and Neptune; it is still the only spacecraft ever to have encountered the >ice giants Aren’t they gas giants? I mean they are probably very cold, but usually they are called gas giants.

> Aren’t they gas giants? Uranus is for sure.

Risky move making a joke on HN.

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#16

Earlier quoted context omitted.

> Aren’t they gas giants? I mean they are probably very cold, but usually they are called gas giants. "Ice giant" seems to be the more modern terminology: An ice giant is a giant planet composed mainly of elements heavier than hydrogen and helium, such as oxygen, carbon, nitrogen, and sulfur. There are two ice giants in the Solar System: Uranus and Neptune. In astrophysics and planetary science the term "ice" refers…

Astrophysicists have some funny conventions. Like how everything but hydrogen and helium are "metals": https://planetary.s3.amazonaws.com/web/assets/pictures/20120...

Those 2% "metals" are basically considered a rounding error and can be ignored.

Also π ≈ 1. https://www.explainxkcd.com/wiki/index.php/2205:_Types_of_Ap...

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#17
post #2

Now this is hackernews. Imagining working on spacecraft where no human made thing has gone before. Also is this correct? >NASA extended the mission so that Voyager 2 could visit Uranus and Neptune; it is still the only spacecraft ever to have encountered the >ice giants Aren’t they gas giants? I mean they are probably very cold, but usually they are called gas giants.

> Aren’t they gas giants? I mean they are probably very cold, but usually they are called gas giants. "Ice giant" seems to be the more modern terminology: An ice giant is a giant planet composed mainly of elements heavier than hydrogen and helium, such as oxygen, carbon, nitrogen, and sulfur. There are two ice giants in the Solar System: Uranus and Neptune. In astrophysics and planetary science the term "ice" refers…

Thank you! Learned something new. Honestly never heard the term before.

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#18

Is it just me that really wants to FOIA the firmware code to read it? What is it written in? Assembler, surely? What is the development toolchain like in 2023 for a 70s computer? Do they have an emulator? What happened to the spare development Voyager they had lying around?

They almost certainly upload every software patch to the dev Voyager and do an extended HITL test before they command a flight flash

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#19
post #4

Pioneer 10 is technically further away, just dead as a rock without power (no comm for 20 years) Voyager website is awesome https://voyager.jpl.nasa.gov/mission/timeline/ A very different time, thank goodness for DEI now https://voyager.jpl.nasa.gov/assets/images/timeline/0003.jpg

[dead]

Re: NASA's Voyager Team Focuses on Software Patch, Thrusters

#20

Is it just me that really wants to FOIA the firmware code to read it? What is it written in? Assembler, surely? What is the development toolchain like in 2023 for a 70s computer? Do they have an emulator? What happened to the spare development Voyager they had lying around?

You probably don't need a FOIA, you can try to just email them. They're scientists and engineers, the best thing in their day would be someone showing an unbidden interest.
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