NASA’s Voyager 1 probe is presently unable to transmit any scientific or methods knowledge again to Earth. The 46-year-old spacecraft is able to receiving instructions, however an issue appears to have arisen with the probe’s computer systems.
Voyager 1’s flight knowledge system (FDS), which collects onboard engineering info and knowledge from the spacecraft’s scientific devices, is not speaking as anticipated with the probe’s telecommunications unit (TMU), in response to a NASA blog post on Dec. 12.
When functioning correctly, the FDS compiles the spacecraft’s information into an information bundle, which is then transmitted again to Earth utilizing the TMU. Currently, that knowledge bundle has been “caught,” the weblog submit mentioned, “transmitting a repeating sample of ones and zeros.” Voyager’s engineering group traced the issue again to the FDS, but it surely may very well be weeks earlier than an answer is discovered.
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Voyager 1, and its twin spacecraft Voyager 2, launched in 1977 and have been operational longer than another spacecraft in historical past. Each are in interstellar area, dashing into the cosmos greater than 15 billion miles (24 billion kilometers) from Earth.
They’re so far-off, in actual fact, that it takes practically a day (22.5 hours) for a transmission to achieve the spacecraft, and one other day to obtain any kind of response. A single back-and-forth communication with Voyager 1 takes 45 hours. So, each time NASA engineers are in a position to ship a repair for the probe’s FDS, they must wait till the next day to search out out if it really works.
And the answer will not be so simple as simply turning the system on and off once more (they tried that — it did not work). The spacecraft’s age and {hardware} current a novel set of challenges. NASA technicians should work inside the framework and know-how obtainable to their predecessors within the Seventies, typically forcing some inventive software program work-arounds.
This is not the primary malfunction Voyager 1 has skilled in recent times. Points with the probe’s perspective articulation and management system (AACS) have been observed in Might 2022, and continued transmitting nonsense telemetry knowledge for a number of months earlier than a workaround was discovered.
One other replace got here in October 2023, with a software program patch to assist in the end clear up that challenge, and likewise stop residue build-up on the probes’ thrusters. However these sorts of updates do not come rapidly. NASA’s weblog clarifies, “discovering options to challenges the probes encounter usually entails consulting authentic, decades-old paperwork written by engineers who didn’t anticipate the problems which might be arising at this time. Because of this, it takes time for the group to know how a brand new command will have an effect on the spacecraft’s operations so as to keep away from unintended penalties.”
