Uptime 15,364 Days - The Computers of Voyager

Explore the remarkable computing systems of NASA's longest-running mission in this 40-minute conference talk from Strange Loop. Delve into the origins, design, and ongoing operation of the Voyager 1 and 2 space probes, launched in 1977 and still transmitting data from beyond our solar system. Learn about the adaptable, durable, and resilient systems that enable remote control and data collection, including the Command Computer System, Attitude and Articulation Control System, and Flight Data System. Discover the engineering principles behind Voyager's longevity in the harsh space environment, the challenges of patching systems from billions of miles away, and the future prospects of this groundbreaking mission. Gain insights from software developer Aaron Cummings as he discusses the probes' initial requirements, revised program objectives, and the iconic golden record. The talk concludes with a Q&A session, offering a comprehensive look at one of humanity's most enduring technological achievements.

Background on Voyager
Talk outline
About the speaker
Origins of Voyager
Initial requirements
Revised program
The 3 R's
Probe design
Command Computer System
Attitude and Articulation Control System
Flight Data System
Voyager 0
Voyager 2 mission
Sustaining power
The golden record
Q&A