KBO encounters |
KBO encounters |
Sep 8 2012, 01:14 PM
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#241
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Based on these plots, they should be able to make correction maneuvers and science activities until early 2024 (59 au) and downlink data until 2029 (74 au).
Moreover, if mission extension will be financed, I'am pretty confident they will be able to further improve these margins by optimizing operations (as done on Voyager) -------------------- I always think before posting! - Marco -
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Sep 9 2012, 02:04 AM
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#242
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
Alan,
Do those power margins account for shutting down unnecessary systems as NH ages? Or is the technology good enough now (I'm an embedded engineer myself) that a low-power mode for an instrument is essentially near-zero power? -------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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Sep 9 2012, 09:18 AM
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#243
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Member Group: Members Posts: 529 Joined: 19-February 05 Member No.: 173 |
The figures in Glen Fountain's paper do not include measures we can take to extend mission duration, which we now estimate will take us to the mid-late 2030s. However, those measures do not generally include low power instrument modes, as most NH instruments do not have them.
Alan, Do those power margins account for shutting down unnecessary systems as NH ages? Or is the technology good enough now (I'm an embedded engineer myself) that a low-power mode for an instrument is essentially near-zero power? |
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Sep 9 2012, 12:51 PM
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#244
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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 |
this in interesting: the search for candidate KBOs continues to provide some "collateral" discoveries
Discovery and Characterization of an L5 Neptune Trojan in the Search for a New Horizons Encounter Candidate and it may also receive some distant (180 million km) observations |
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Sep 10 2012, 11:36 PM
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#245
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Newbie Group: Members Posts: 17 Joined: 24-August 12 Member No.: 6610 |
Am a big fan of the KBO post encounter, and threw in some time at Ice Hunters, but would trade it all for a trajectory change to get more info on Uranus or Neptune.
That red trojan looks interesting tho, and nearly a 30 deg inclination is crazy! Am specifically interested if there are any flux tube re-connections out there. OPAG doesn't look like they will be chosen in time to still have any specialty scientists still around to study an ice giant..... -------------------- Thomas Gold was probably right about a iceball Mars.....
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Sep 11 2012, 06:13 AM
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#246
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Member Group: Members Posts: 443 Joined: 1-July 05 From: New York City Member No.: 424 |
Am a big fan of the KBO post encounter, and threw in some time at Ice Hunters, but would trade it all for a trajectory change to get more info on Uranus or Neptune. <cough> I've attached a diagram showing the positions of the outer planets at the time of New Horizon's Pluto encounter, together with a cone indicating the outer limits of NH's ability to change course after the encounter. The diagram is figure 14 from Guo and Farquhar, New Horizons Mission Design (2007), available at http://www.boulder.swri.edu/pkb/. nh.cone.pdf ( 62.03K ) Number of downloads: 714 * Keeping in mind the narrowness of the cone, the positions on the diagram of Uranus and Neptune, and of course the fact that Uranus and Neptune will continue to march, "rank on rank," as members of "[t]he army of unalterable law" ** further counterclockwise from the Pluto rendezvous point ... what kind of trajectory change are you talking about? TTT _______ * I've looked at BB Code Help, I've searched the forum, I've googled (per Chairman's advice), and I've looked at page source, but haven't figured out how to post an inline image. I'm sure it's only a few characters of code with a simple syntax, but I'm not able to intuit what those words and syntax are. To avoid threadjack. I'll start a thread in EVA/Chit Chat or EVA/Image Processing Techniques. ** Apologies to George Meredith. |
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Sep 12 2012, 06:30 PM
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#247
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Member Group: Members Posts: 495 Joined: 12-February 12 Member No.: 6336 |
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Sep 20 2012, 06:09 PM
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#248
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Junior Member Group: Members Posts: 40 Joined: 29-December 11 Member No.: 6295 |
Candidate for post-Pluto encounter - Plutino 15810:
A possible post-Pluto flyby target for NASA’s New Horizons spacecraft? Cheers, Udo -------------------- But to be a lament on the lips of the loved one is glorious, For the prosaic goes toneless to Orcus below. (Friedrich Schiller: Naenie)
Home of marspages.eu and plutoidenpages.eu |
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Sep 20 2012, 07:21 PM
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#249
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
Candidate for post-Pluto encounter - Plutino 15810... The amateur search for post Pluto targets is no longer hosted by Zooniverse as mentioned in both the linked article and the Planetary Society blog post (linked in the article). It is now at http://cosmoquest.org/ as Ice Investigators. In any case there are not currently any images available to search in. I guess Pamela Gay has her work cut out getting word out about Cosmoquest. |
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Oct 10 2012, 11:38 PM
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#250
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Member Group: Members Posts: 754 Joined: 9-February 07 Member No.: 1700 |
Looks like there is a pre-Pluto target PS article on the Ice Hunters
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Oct 11 2012, 02:06 AM
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#251
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Senior Member Group: Members Posts: 2073 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Looks like the actual photos won't be any better then that asteroid a few years ago;, but I'm sure the team will take what they can get. Not like a detour is possibly anyway...
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Oct 11 2012, 02:18 AM
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#252
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
Looks like there is a pre-Pluto target... I see at least one UMSF contributor there. "Along with the New Horizons search team, the citizen scientists of Ice Hunters assisted in identifying 2011 HM102 in recovery images. The names of those that detected 2011 HM102 are listed below: ... T. Demko ..." |
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Oct 12 2012, 12:08 AM
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#253
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Member Group: Members Posts: 153 Joined: 8-February 04 From: Phoenix, AZ USA Member No.: 9 |
My
Minor Planet Electronic Circular for 2011 HM102 -------------------- Tim Demko
BioLink site |
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Apr 16 2013, 02:09 AM
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#254
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
My And now your name appears, along with other Ice Hunters, in appendix A of this paper. (PDF)
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May 7 2013, 04:33 PM
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#255
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Member Group: Members Posts: 153 Joined: 8-February 04 From: Phoenix, AZ USA Member No.: 9 |
It's nice to know that I contributed, in some small fashion, to the exploration of the solar system and beyond. The Ice Hunters project was very well designed, both from a contributor and end-user standpoint, and I hope that there are other similar opportunities for direct involvment in missions and data analysis. I hope that there will be imaging opportunites for New Horizons to view L5 Neptune Trojan 2011 HM102...it will be like connecting with someone you've only had a fleeting glimpse of, but now have the chance to learn much more!
-------------------- Tim Demko
BioLink site |
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