Voyager Is 30!

EnolaGaia

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#61
Whenever I think of this, I also feel a little sad for it... out there all on its own, leaving the Solar System and heading into the unknown...
I prefer to think of it as 'heading out AS an unknown' ...

Our species' Voyager could eventually become some other species' Oumuamua.
 

Ermintruder

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#65
Curious. Unless it's just me....

The almost-live data from Voyager 1 and 2...

https://voyager.jpl.nasa.gov/mission/status

My reading of it is that they're both showing as getting >closer< to Earth....which makes no sense whatsoever. They're meant to be interstellar, heading away from us at 38,000 miles-per-hour.

At 0341UTC this morning (Sun 3 Mar 2019) the distance from Earth for Voyager 1 was 13,481,932,956....just ten minutes later, that had reduced to 13,481,922,095, that is
10,861 miles closer.....and travelling home at a speed of nearly 66,000 miles an hour!!!

What gives? Has somebody (or something) sent them back?

2019-03-03 04.03.48.png
2019-03-03 04.04.27.png
 

blessmycottonsocks

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#66
Curious. Unless it's just me....

The almost-live data from Voyager 1 and 2...

https://voyager.jpl.nasa.gov/mission/status

My reading of it is that they're both showing as getting >closer< to Earth....which makes no sense whatsoever. They're meant to be interstellar, heading away from us at 38,000 miles-per-hour.

At 0341UTC this morning (Sun 3 Mar 2019) the distance from Earth for Voyager 1 was 13,481,932,956....just ten minutes later, that had reduced to 13,481,922,095, that is
10,861 miles closer.....and travelling home at a speed of nearly 66,000 miles an hour!!!

What gives? Has somebody (or something) sent them back?

View attachment 15362
View attachment 15363
It's coming home, it's coming home. Voyager's coming home!

...... or, it's that time of the year when Earth's orbit brings us temporarily closer to Voyager.
The distance from Sol is a better measure (which is also why Voyager's velocity is given from Sol, not Earth) and that is increasing steadily.

https://www.popularmechanics.com/space/satellites/a26118/voyager-1-and-earth-get-closertemporarily/
 

Bigphoot2

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#68
Still boldly going...
A New Plan for Keeping NASA's Oldest Explorers Going
This artist's concept depicts one of NASA's Voyager spacecraft, including the location of the cosmic ray subsystem (CRS) instrument. Both Voyagers launched with operating CRS instruments. Credit: NASA/JPL-Caltech
› Unannotated version
UPDATED on July 12, 2019: Voyager 2 successfully fired up its trajectory correction maneuver thrusters on July 8, 2019, and will be using them to control the pointing of the spacecraft for the foreseeable future. Voyager 2 last used those thrusters during its encounter with Neptune in 1989. The spacecraft's aging attitude control thrusters have been experiencing degradation that required them to fire an increasing and untenable number of pulses to keep the spacecraft's antenna pointed at Earth. Voyager 1 switched to its trajectory correction maneuver thrusters for the same reason in January 2018.
With careful planning and dashes of creativity, engineers have been able to keep NASA's Voyager 1 and 2 spacecraft flying for nearly 42 years - longer than any other spacecraft in history. To ensure that these vintage robots continue to return the best science data possible from the frontiers of space, mission engineers are implementing a new plan to manage them. And that involves making difficult choices, particularly about instruments and thrusters.
One key issue is that both Voyagers, launched in 1977, have less and less power available over time to run their science instruments and the heaters that keep them warm in the coldness of deep space. Engineers have had to decide what parts get power and what parts have to be turned off on both spacecraft. But those decisions must be made sooner for Voyager 2 than Voyager 1 because Voyager 2 has one more science instrument collecting data - and drawing power - than its sibling.
etc
https://www.jpl.nasa.gov/news/news....bY7SFe7gCMOrSbpeg2frQc03GCMwqv9wABUo28_CROsdA
 

Bigphoot2

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#69
Voyager 2 sending back signals from interstellar space
Nasa's Voyager 2 sends back its first signal from interstellar space
Nasa craft is second to travel beyond heliosphere but will give most detailed data yet
Hannah Devlin Science correspondent
@hannahdev
Mon 4 Nov 2019 16.04 GMTLast modified on Mon 4 Nov 2019 16.10 GMT


Twelve billion miles (19.3bn km) from Earth, there is an elusive boundary that marks the edge of the sun’s realm and the start of interstellar space. Voyager 2, the longest-running space mission, has finally crossed that frontier 42 years after its launch and beamed back a faint signal from the other side.
etc
https://www.theguardian.com/science...nds-back-first-signal-from-interstellar-space
 

hunck

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#72
A woman from NASA was on the radio the other day. She said Voyagers nuclear reactor has been losing power at the rate of around 3% per year so it has an estimated 5 - 8 years left of useful life. After that it won't have power to send data back to Earth.
 

Bigphoot2

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#73
A woman from NASA was on the radio the other day. She said Voyagers nuclear reactor has been losing power at the rate of around 3% per year so it has an estimated 5 - 8 years left of useful life. After that it won't have power to send data back to Earth.
It'll be a sad day when that happens but what an achievement - the folks who designed and built the Voyagers must be really proud.
 
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