Voyager 1 continues to be alive on the market, barreling into the cosmos greater than 15 billion miles away. However, a pc drawback has saved the mission’s loyal help staff in Southern California from understanding far more concerning the standing of considered one of NASA’s longest-lived spacecraft.
(*1*)The pc glitch cropped up on November 14, and it affected Voyager 1’s skill to ship again telemetry knowledge, reminiscent of measurements from the craft’s science devices or primary engineering details about how the probe was doing. As a outcome, the staff has no perception into key parameters concerning the craft’s propulsion, energy, or management techniques.
(*1*)”It could be the most important miracle if we get it again. We definitely have not given up,” stated Suzanne Dodd, Voyager mission supervisor at NASA’s Jet Propulsion Laboratory, in an interview with Ars. “There are different issues we will attempt. But that is, by far, essentially the most critical since I’ve been mission supervisor.”
(*1*)Dodd turned the mission supervisor for NASA’s Voyager mission in 2010, overseeing a small cadre of engineers accountable for humanity’s exploration into interstellar area. Voyager 1 is essentially the most distant spacecraft ever, dashing away from the solar at 38,000 mph (17 kilometers per second).
(*1*)Voyager 2, which launched 16 days earlier than Voyager 1 in 1977, is not fairly as far-off. It took a extra leisurely route via the photo voltaic system, flying previous Jupiter, Saturn, Uranus, and Neptune, whereas Voyager 1 picked up velocity throughout an encounter with Saturn to overtake its sister spacecraft.
(*1*)For the previous couple of many years, NASA has devoted Voyager’s devices to learning cosmic rays, the magnetic area, and the plasma atmosphere in interstellar area. They’re not taking photos anymore. Both probes have traveled past the heliopause, the place the stream of particles emanating from the solar runs into the interstellar medium.
(*1*)There aren’t any different operational spacecraft at present exploring interstellar area. NASA’s New Horizons probe, which flew previous Pluto in 2015, is on observe to attain interstellar area within the 2040s.
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(*1*)The newest drawback with Voyager 1 lies within the probe’s Flight Data Subsystem (FDS), considered one of three computer systems on the spacecraft working alongside a command-and-control central pc and one other machine overseeing perspective management and pointing.
(*1*)The FDS is accountable for accumulating science and engineering knowledge from the spacecraft’s community of sensors after which combining the data right into a single knowledge package deal in binary code—a collection of 1s and 0s. A separate part referred to as the Telemetry Modulation Unit really sends the information package deal again to Earth via Voyager’s 12-foot (3.7-meter) dish antenna.
(*1*)In November, the information packages transmitted by Voyager 1 manifested a repeating sample of 1s and 0s as if it had been caught, in accordance to NASA. Dodd stated engineers at JPL have spent the higher a part of three months making an attempt to diagnose the reason for the issue. She stated the engineering staff is “99.9 p.c certain” the issue originated within the FDS, which seems to be having hassle “body syncing” knowledge.
(*1*)So far, the bottom staff believes the almost definitely clarification for the issue is a little bit of corrupted reminiscence within the FDS. However, due to the pc hangup, engineers lack detailed knowledge from Voyager 1 which may lead them to the basis of the problem. “It’s seemingly someplace within the FDS reminiscence,” Dodd stated. “A bit bought flipped or corrupted. But with out the telemetry, we will not see the place that FDS reminiscence corruption is.”