KBO encounters |
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KBO encounters |
 May 29 2014, 08:10 AM
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#256
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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  |
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Jun 16 2014, 06:07 PM
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#257
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 Senior Member Group: Members Posts: 2082 Joined: 13-February 10 From: Ontario Member No.: 5221 |
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Jun 16 2014, 06:47 PM
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#258
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Member Group: Members Posts: 910 Joined: 4-September 06 From: Boston Member No.: 1102 |
Fantastic!
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Jun 16 2014, 09:37 PM
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#259
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 Junior Member Group: Members Posts: 66 Joined: 3-August 12 Member No.: 6454 |
" If the test observation identifies at least two KBOs of a specified brightness, it will demonstrate statistically that Hubble has a chance of finding an appropriate KBO for New Horizons to visit. At that point, an additional allotment of observing time will continue the search across a field of view roughly the angular size of the full Moon."
What are the chances of the test observation identifying at least two KBOs of a specified brightness ? Good bet or not ? |
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Jun 17 2014, 01:12 PM
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#260
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Junior Member Group: Members Posts: 78 Joined: 16-October 12 From: Pennsylvania Member No.: 6711 |
It is a bet worth taking rather than not doing it at all.
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Jun 17 2014, 08:21 PM
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#261
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 Member Group: Members Posts: 723 Joined: 13-June 04 Member No.: 82 |
QUOTE (0101Morpheus @ Jun 17 2014, 01:12 PM)  It is a bet worth taking rather than not doing it at all. If it were a choice between making 40 orbits worth of Hubble observations for identifying possible post-Pluto flybys, or having the Hubble simply sit idle for those 40 orbits, then it would be an obvious no-brainer. But in fact this means that 40 orbits of other observations will not be done. It's actually a fairly close decision, in my opinion. Of course I hope that a suitable KBO is located, but New Horizons will have accomplished its initial mission goals even without flybys of additional post-Pluto objects. |
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Jun 17 2014, 09:05 PM
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#262
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Junior Member Group: Members Posts: 66 Joined: 3-August 12 Member No.: 6454 |
QUOTE We estimate a 78% chance of reaching or exceeding this threshold in the pilot survey." They will find out within a couple of weeks whether the pilot search will pay out. Thanks to Emily Lakdawalla for nailing this down ! ....much appreciated ! http://www.planetary.org/blogs/emily-lakda...the-rescue.html |
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Jun 17 2014, 09:28 PM
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#263
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Member Group: Members Posts: 293 Joined: 22-September 08 From: Spain Member No.: 4350 |
I wonder if aerobraking at Pluto would even be possible as a last ditch effort to get within the dV range of the closest one.
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Jun 17 2014, 09:46 PM
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#264
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 Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Jaro: Glad to be of service
 Fran: Definitely not. They are traveling past Pluto at Charon's orbital distance for both safety and science reasons. -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Jun 18 2014, 12:01 PM
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#265
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Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
That looks like it was a very well-written proposal as well. Fingers crossed in the next few weeks then. It will be an exciting next few years in any case.
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Jul 1 2014, 07:09 PM
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#266
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 Member Group: Members Posts: 699 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
Just to let everyone know that we have found the required 2 faint KBOs in our pilot HST search program, and have been authorized to continue to the full 160-orbit Hubble search. We are all quite happy around here
.Hubble news release John |
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Jul 1 2014, 07:21 PM
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#267
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Member Group: Members Posts: 723 Joined: 13-June 04 Member No.: 82 |
Excellent news! Given the detection statistics so far, and NH's available post-Pluto delta V, is there an estimate of how many KBOs by diameter should be within its reach, assuming average luck?
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Jul 1 2014, 08:31 PM
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#268
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 Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
QUOTE (john_s @ Jul 1 2014, 08:09 PM) We are all quite happy around here I bet. Two is very low number statistics so this represents a dangerous moment passed, but not really a guarantee of success with the full search. Now it's less about luck and more about what's out there. Here's hoping . . |
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Jul 2 2014, 02:11 AM
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#269
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Member Group: Members Posts: 202 Joined: 9-September 08 Member No.: 4334 |
QUOTE (john_s @ Jul 1 2014, 07:09 PM) Just to let everyone know that we have found the required 2 faint KBOs in our pilot HST search program, and have been authorized to continue to the full 160-orbit Hubble search. We are all quite happy around here .Hubble news release John That's great! I hope something within New Horizons' delta-v range shows up (or even multiple objects to choose from?) EDIT: When will the full search be completed? |
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Jul 2 2014, 03:02 AM
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#270
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 Member Group: Members Posts: 540 Joined: 25-October 05 From: California Member No.: 535 |
The full Hubble search should be completed in August
-------------------- 2011 JPL Tweetup photos: http://www.rich-parno.com/aa_jpltweetup.html
http://human-spaceflight.blogspot.com |
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