Wednesday, April 26, 2023

And... NASA | JPL May Yet Coax A Few More Years Of Life/Power From Far Off Voyager... And Thus, Some MORE Interstellar Science!


Even though this is about V'ger 2, at the moment -- next year Voyager 1 will face this same issue -- and likely use this same solution set.

You know I am loving it! On, to NASA/V'ger's undiscovered (interstellar) country, then -- and a bit:

. . .Launched in 1977, the Voyager 2 spacecraft is more than 12 billion miles (20 billion kilometers) from Earth, using five science instruments to study interstellar space. To help keep those instruments operating despite a diminishing power supply, the aging spacecraft has begun using a small reservoir of backup power set aside as part of an onboard safety mechanism. The move will enable the mission to postpone shutting down a science instrument until 2026, rather than this year.

Voyager 2 and its twin Voyager 1 are the only spacecraft ever to operate outside the heliosphere, the protective bubble of particles and magnetic fields generated by the Sun. The probes are helping scientists answer questions about the shape of the heliosphere and its role in protecting Earth from the energetic particles and other radiation found in the interstellar environment.

“The science data that the Voyagers are returning gets more valuable the farther away from the Sun they go, so we are definitely interested in keeping as many science instruments operating as long as possible,” said Linda Spilker, Voyager’s project scientist at NASA’s Jet Propulsion Laboratory in Southern California, which manages the mission for NASA.

“Variable voltages pose a risk to the instruments, but we’ve determined that it’s a small risk, and the alternative offers a big reward of being able to keep the science instruments turned on longer,” said Suzanne Dodd, Voyager’s project manager at JPL. “We’ve been monitoring the spacecraft for a few weeks, and it seems like this new approach is working.”

The Voyager mission was originally scheduled to last only four years, sending both probes past Saturn and Jupiter. NASA extended the mission so that Voyager 2 could visit Neptune and Uranus; it is still the only spacecraft ever to have encountered the ice giants. In 1990, NASA extended the mission again, this time with the goal of sending the probes outside the heliosphere. Voyager 1 reached the boundary in 2012, while Voyager 2 (traveling slower and in a different direction than its twin) reached it in 2018. . . .


I am grinning, ear to ear, on this one -- V'ger indeed!

नमस्ते

2 comments:

Anonymous said...

All very fascinating. Accomplishments on equipment/software that was never imagined to go this far. What a bargain those engineers pulled off.


I wonder when V'ger will come back to the Creator and insist on a 'merger'?

condor said...

Indeed! Hah!