Stardust-NExT, Revisiting Tempel 1 |
Stardust-NExT, Revisiting Tempel 1 |
Dec 28 2010, 01:46 PM
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
I thought it was time to start a new thread on Stardust's flyby of Tempel 1, the first time a comet receives a second visit from a spacecraft one perihelion later.
There was an interesting story about this on Spaceflight now recently http://www.spaceflightnow.com/news/n1012/23stardustnext/ note that the flyby will be around 23.30 eastern time on 14 February, so thinking in GMT it will not happen on Valentine's day. Stardust should have started imaging Tempel 1 twice weekly in mid-December, but there is nothing yet on the mission site http://stardustnext.jpl.nasa.gov/index.html see also http://stardustnext.jpl.nasa.gov/mission/m...tatus10_q4.html for updates on the mission status |
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Feb 15 2011, 08:02 AM
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Founder Group: Chairman Posts: 14448 Joined: 8-February 04 Member No.: 1 |
We have a predicted trajectory for both spacecraft and comet - and then just like the spacecraft itself, Jon (lead dev for EotSS) programmed autonav - the spacecraft rotated and the mirror tracked to keep the comet in the middle of the field of view.
And as for geometry/lighting etc - we did our best to match this : http://2.bp.blogspot.com/-GgFZHEkOXh4/TVk-...0/planned_1.jpg : and I think we did quite well. There's an adjustment we've made here to the timing (15 seconds early) - so the 5 images will be more like -21sec to +51sec rather than centered on C/A And thanks for the kudos guys - a lot of fun tonight, and it seems like the technology for EotSS, and our faithful old spacecraft...has held up. We're in for a slightly longer wait for the images, but hopefully it'll be worth it. |
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