NASA's Voyager 1 Resumes Sending Engineering Updates to Earth

Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by jlaneve on Monday April 22, 2024 @05:52PM (#40121773)

> The team started by singling out the code responsible for packaging the spacecraft’s engineering data. They sent it to its new location in the FDS memory on April 18. A radio signal takes about 22 ½ hours to reach Voyager 1, which is over 15 billion miles (24 billion kilometers) from Earth, and another 22 ½ hours for a signal to come back to Earth.

Talk about a slow feedback loop! And I get frustrated when I need to push code to a repo to test things in CI...

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Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by z500 on Monday April 22, 2024 @06:17PM (#40122985)

My internet is operating at about 1/100 normal speed today. It feels a bit like I've been remoting into a machine on Mars.

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Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by LAC-Tech on Monday April 22, 2024 @06:01PM (#40122258)

How much data can you send in a single radio single? I assume it's not TCP/IP

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Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by akira2501 on Monday April 22, 2024 @07:29PM (#40126069)

Downlink from Voyager to Earth is currently 40 bits/s but can be up to 160 bits/s. The signal is received at -160dBm or around 100 _zeptowatts_ (1e-22 kW).

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Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by dgfitz on Monday April 22, 2024 @06:31PM (#40123080)

Have you investigated this or are you just asking? I imagine if you wish to learn the answer it is a few simple searches away. And by “imagine” I mean, it is.

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Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by Dylan16807 on Monday April 22, 2024 @10:54PM (#40127964)

You can get raw bitrate numbers, not so much about the way transmissions are formatted.

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Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by huytersd on Monday April 22, 2024 @10:58PM (#40127984)

Posting a question in a forum has its benefits though. A bunch of drive by folks end up picking up information they would never have gone through the trouble of researching themselves.

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Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by HeckFeck on Tuesday April 23, 2024 @05:14AM (#40130024)

So there is something with a worse ping than IP over Avian Carriers.

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Re:NASA's Voyager 1 Resumes Sending Engineering Updates to E... by lang4d on Wednesday April 24, 2024 @02:53PM (#40148121)

Hopefully they have a few local benches to iterate on for testing.

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