Voyager Status, What is it? |
Voyager Status, What is it? |
Dec 6 2006, 05:48 AM
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#1
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Member Group: Members Posts: 428 Joined: 21-August 06 From: Northern Virginia Member No.: 1062 |
Anyone know the latest Voyager status? I've hear rumors, but I'm wondering if anyone has anything more concrete (I won't share the rumors, as I really don't know much about it, so...)
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Nov 22 2007, 01:00 PM
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#2
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Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
Thinking about it, perhaps the answer is a combination of several factors:
1) Maybe voyager operators were more sparing of the propellant for V2 knowing that Uranus (and beyond) were at least 'on the cards' from the off. 2). Different trajectories and speeds of the two spacecraft 3) V1 I think had to make a huge (many minutes) burn to set up for the Titan close encounter. |
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Nov 22 2007, 01:07 PM
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#3
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
1) Maybe voyager operators were more sparing of the propellant for V2 knowing that Uranus (and beyond) were at least 'on the cards' from the off. You can't spare propellant, saving it for Uranus because if you didn't do the necessary burn now there would not be any Uranus encounter, but a huge miss instead. Rule of thumb: fewer targetted encounters = less fuel consumed. I seem to remember it was V2 that performed a big burn to set up a trajectory to the Uranus aimpoint and cleanup all the perturbations after passage through the Saturnian system . -------------------- |
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Nov 22 2007, 01:41 PM
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#4
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Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
Rule of thumb: fewer targetted encounters = less fuel consumed. That's just the reason for my surprise in post 56 above: Voyager 1 - housekeeping attitude control since November 1980 (except for the family portrait shot) Propellant left: 27.7kg on July 6th 2007 Voyager 2 - observations of an additional two planets/ring systems and at least 10 moons since Saturn encounter I understand the amount of spacecraft slewing at Uranus was huge due to the number of targets at C/A coupled with the planet's axial tilt Propellant left: 29.41kg on July 6th 2007 |
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