Kevin B. Ridgway's Blog

Software Engineer, Creator, and Curious Mind

debugging

How We Diagnosed and Fixed the 2023 Voyager 1 Anomaly from 15 Billion Miles Away.

David Cummings (JPL) presents how they did it in this video. Incredible longevity from 1970s technology. Imagine trying to debug something, where you send a command and then wait 45 hours to see the result. 😅

The only human-made objects that are in interstellar space. Technology that's been going for 47 1/2 years at this point.

Fun facts: The programming language? A custom assembly language for the processor used in question. They don't have the source code, they do have the intermediary output, in a Word doc that was OCR'd in, so it has a lot of typos!

Posted 2025-04-26 | Tags: nasa, space, videos, debugging