GOCE |
GOCE |
Mar 16 2009, 10:44 AM
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#1
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Set for launch today:
http://www.esa.int/SPECIALS/GOCE/index.html Some interesting new technology here - half satellite half airplane! Well maybe mainly satellite, but an interesting concept that could have applications in other atmospheres, making lower orbiting feasible. |
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May 27 2009, 08:43 AM
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#2
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Member Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 |
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May 27 2009, 09:33 AM
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#3
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Junior Member Group: Members Posts: 39 Joined: 26-March 09 From: Cornwall Member No.: 4697 |
Not quite the "first" they claim, though. Beaten by three decades:
http://oai.dtic.mil/oai/oai?verb=getRecord...ifier=AD0766456 |
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May 27 2009, 03:08 PM
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#4
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Thanks for the info, gwiz! For Triad satellite, it seems they used traditional thrusters for compensatoin of non-gravitational forces, I wonder if is really effective like the continuous ion thruster...
Anyway, any link to the full article? PS: I'm really intrigued by the final phrase "A significant bias force is found acting in the local vertical direction." Pioneer effect again??? EDIT: I found this article telling that Triad residual acceleration is within 1e-11g... any info on the actual GOCE residual acceleration? (they only claim is 10-fold better than requested). -------------------- I always think before posting! - Marco -
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May 27 2009, 03:36 PM
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#5
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Junior Member Group: Members Posts: 39 Joined: 26-March 09 From: Cornwall Member No.: 4697 |
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