Date: 3/12/2017 20:17:22
From: dv
ID: 1156871
Subject: Voyager 1's thrusters fire

Voyager 1 spacecraft thrusters fired up for first time since 1980

It’s a good idea to have a backup plan, especially in interstellar space.

NASA scientists needed to reorient the 40-year-old Voyager 1 — the space agency’s farthest spacecraft — so its antenna would point toward Earth, 13 billion miles away. But the “attitude control thrusters,” the first option to make the spacecraft turn in space, have been wearing out.

So NASA searched for a Plan B, eventually deciding to try using four “trajectory correction maneuver” (TCM) thrusters, located on the back side of Voyager 1. But those thrusters had not been used in 37 years. NASA wasn’t sure they’d work.
Tuesday, engineers fired up the thrusters and waited eagerly to find out whether the plan was successful. They got their answer 19 hours and 35 minutes later, the time it took for the results to reach Earth: The set of four thrusters worked perfectly. The spacecraft turned and the mood at NASA shifted to jubilation.

http://edition.cnn.com/2017/12/01/us/voyager-1-thrusters-fired-first-time-since-1980/index.html

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Date: 3/12/2017 20:24:30
From: Michael V
ID: 1156874
Subject: re: Voyager 1's thrusters fire

Wow, just wow!

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Date: 3/12/2017 20:26:30
From: dv
ID: 1156875
Subject: re: Voyager 1's thrusters fire

They don’t make ‘em like that any more ….

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Date: 3/12/2017 20:27:48
From: party_pants
ID: 1156876
Subject: re: Voyager 1's thrusters fire

I’m guessing they weren’t covered in dust and spiderwebs.

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Date: 3/12/2017 20:29:52
From: dv
ID: 1156878
Subject: re: Voyager 1's thrusters fire

Yeah but micrometeorites, solar wind, thermal strain etc.

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Date: 3/12/2017 20:31:46
From: Tau.Neutrino
ID: 1156880
Subject: re: Voyager 1's thrusters fire

They sent someone there to fix any problems first.

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Date: 3/12/2017 20:33:22
From: party_pants
ID: 1156881
Subject: re: Voyager 1's thrusters fire

dv said:


Yeah but micrometeorites, solar wind, thermal strain etc.

OK, I’ll concede it is pretty impressive. I hope they still make them like that.

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Date: 3/12/2017 20:33:47
From: Michael V
ID: 1156882
Subject: re: Voyager 1's thrusters fire

dv said:


They don’t make ‘em like that any more ….
“Make Mercia grate again!”

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Date: 3/12/2017 20:35:53
From: sarahs mum
ID: 1156887
Subject: re: Voyager 1's thrusters fire

value.

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Date: 3/12/2017 20:36:48
From: Witty Rejoinder
ID: 1156890
Subject: re: Voyager 1's thrusters fire

Michael V said:


dv said:

They don’t make ‘em like that any more ….
“Make Mercia grate again!”

How very Old England of you.

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Date: 3/12/2017 20:41:03
From: Michael V
ID: 1156895
Subject: re: Voyager 1's thrusters fire

Witty Rejoinder said:


Michael V said:

dv said:

They don’t make ‘em like that any more ….
“Make Mercia grate again!”

How very Old England of you.

Drain the Fens!

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Date: 4/12/2017 07:32:50
From: Peak Warming Man
ID: 1156991
Subject: re: Voyager 1's thrusters fire

You see this is news, important and interesting news.
I remember when ABC News Radio used to have a segment called Star Gazing presented by Stuart Garry.
That didn’t last long, not enough politics in it probably.

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Date: 5/12/2017 16:32:11
From: mollwollfumble
ID: 1157674
Subject: re: Voyager 1's thrusters fire

dv said:


Voyager 1 spacecraft thrusters fired up for first time since 1980

It’s a good idea to have a backup plan, especially in interstellar space.

NASA scientists needed to reorient the 40-year-old Voyager 1 — the space agency’s farthest spacecraft — so its antenna would point toward Earth, 13 billion miles away. But the “attitude control thrusters,” the first option to make the spacecraft turn in space, have been wearing out.

So NASA searched for a Plan B, eventually deciding to try using four “trajectory correction maneuver” (TCM) thrusters, located on the back side of Voyager 1. But those thrusters had not been used in 37 years. NASA wasn’t sure they’d work.
Tuesday, engineers fired up the thrusters and waited eagerly to find out whether the plan was successful. They got their answer 19 hours and 35 minutes later, the time it took for the results to reach Earth: The set of four thrusters worked perfectly. The spacecraft turned and the mood at NASA shifted to jubilation.

http://edition.cnn.com/2017/12/01/us/voyager-1-thrusters-fired-first-time-since-1980/index.html

Now for Voyager 2?

A bit of a shock that the lifespan is perhaps more limited than I thought. The mission has I think been extended to the year 2025. But if the thrusters hadn’t worked.

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