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Voyager 1 is Compelled to Depend on its Low Energy Radio

November 3, 2024
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Voyager 1 is Compelled to Depend on its Low Energy Radio
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Voyager 1 was launched waaaaaay again in 1977. I’d have been 4 years outdated then! It’s an unbelievable achievement that expertise that was constructed THAT way back continues to be working. But right here we’re in 2024, Voyager 1 and a couple of are getting older. Earlier this week, NASA needed to flip off one of many radio transmitters on Voyager 1. This compelled communication to rely on the low-power radio. Alas expertise round 50 years outdated does generally glitch and this was the results of a command to activate a heater. The outcome was that Voyager 1 tripped into fault safety mode and change communications! Oops. 

Voyager 1 is a NASA house probe launched on September 5, 1977, as a part of the Voyager program to review the outer planets and past. Initially, Voyager 1’s mission centered on flybys of Jupiter and Saturn, capturing unbelievable pictures earlier than touring outward. In 2012, it grew to become the primary human-made object to enter interstellar house, crossing the heliopause—the boundary between the affect of the Solar and interstellar house. It now continues to  to ship information again to Earth from over 22 billion km  away, serving to scientists study in regards to the interstellar medium. There may be additionally a “Golden Report” onboard which accommodates sounds and pictures of life on Earth, Voyager 1 serves as a time capsule, supposed to articulate the story of our world to any alien civilizations which will encounter it.

Saturn taken from Voyager 2
The Ringed Planet Saturn

Just some days in the past on 24 October, NASA needed to reconnect to Voyager 1 on its outward journey as a result of considered one of its radio transmitters had been turned off! Alien intervention maybe! Thrilling although that will be, alas not. 

The transmitter appears to have been turned off because of one of many spacecraft fault safety methods. Any time there is a matter with onboard methods the pc will flip the methods into safety mode to guard any additional harm. If the spacecraft attracts an excessive amount of energy from the batteries, the identical system will flip off much less crucial methods to preserve energy. When the fault safety system kicks in, it’s then the job of engineers on the bottom fixing the fault.

Artist rendition of Voyager 1 getting into interstellar house. (Credit score: NASA/JPL-Caltech)

There are challenges right here although. As a result of immense distance to Voyager 1, now about 24 billion km away, any communications to or from takes virtually 23 hours to reach. A request for information for instance means a delay of 46 hours earlier than the request arrives and the information returned! Undaunted, the workforce despatched instructions to Voyager 1 on the 16 October to activate a heater however, while the probe ought to have had sufficient energy, the command triggered the system to show off a radio transmitter to preserve energy. This was found on 18 October when the Deep Area Community was now not in a position to detect the standard ping from the spacecraft. 

The engineers accurately recognized the possible reason behind the issue and located Voyager pinging away on a special frequency utilizing the alternate radio transmitte. This one hadn’t been used for the reason that early 19080’s! With the fault recognized, the workforce didn’t change instantly again to the unique transmitter simply but in case the fault triggered once more. As a substitute,they’re now working to know the fault earlier than switching again. 

Till then, Voyager 1 will proceed to speak with Earth utilizing the decrease energy transmitter because it continues its exploration out into interstellar house. 

Supply : After Pause, NASA’s Voyager 1 Communicating With Mission Team

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