New Horizons: Pre-launch, launch and main cruise, Pluto and the Kuiper belt |
New Horizons: Pre-launch, launch and main cruise, Pluto and the Kuiper belt |
Nov 2 2006, 02:50 PM
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#841
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Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
Nice, beefy update. Thanks for doing these Alan, they are really appreciated!
Trajectory: ...we got a formal solution telling us we should make a mid-December course correction of about 0.4 meters/second (0.9 miles/hour)...the error induced by skipping this maneuver will be small — only about 870 kilometers (550 miles) at Jupiter...we're on a bulls-eye course with a predicted error of 0.035% Yowza! Pretty sweet touch on the steering wheel, guys Jupiter Science: we recently found ourselves on too tight of a schedule to get everything planned, built, tested, and ready for uplink to New Horizons. So last week, as mission PI, I opted for us to go light on distant observations beginning in January and early February. This meant cutting out almost 2/3 of the originally hoped for observations in January. That's a bummer, but it sounds like a good call. Better to get the close-in stuff nailed down than lose them. Exciting times! -------------------- --O'Dave
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Guest_vjkane2000_* |
Nov 2 2006, 03:37 PM
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#842
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Guests |
Something I've wondered about is how powerful New Horizon's LORRI and Ralph cameras are compared to, say Cassini or Galileo's cameras. Some missions list microradian resolution, others focal lengths. Does anyone have a cheat sheet?
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Nov 2 2006, 04:59 PM
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#843
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Member Group: Members Posts: 529 Joined: 19-February 05 Member No.: 173 |
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Nov 2 2006, 05:45 PM
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#844
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Member Group: Members Posts: 648 Joined: 9-May 05 From: Subotica Member No.: 384 |
Alan, did you forgot to add some new image of Jupiter in that update...or there aren't new images?
-------------------- The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful.
Jules H. Poincare My "Astrophotos" gallery on flickr... |
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Nov 2 2006, 06:10 PM
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#845
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Member Group: Members Posts: 529 Joined: 19-February 05 Member No.: 173 |
--><div class='quotetop'>QUOTE(Toma B @ Nov 2 2006, 05:45 PM) </div><div class='quotemain'><!--quotec-->
Alan, did you forgot to add some new image of Jupiter in that update...or there aren't new images? [/quote] Toma- I didn't forget! There aren't new Jupiter images. The September set was a test to calibrate Ralph and LORRI exposure times. We don't plan any new Jupiter imaging until January, and that will be pretty skimpy. Only in late Feb and early-March will we be doing intensive imaging, and even then the majority won't be downlinked until April-May; some things will come down before that to whet people's appetites and to allow us to gage how we're doing, but the main playback is after C/A phase ends. -Alan |
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Nov 2 2006, 10:34 PM
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#846
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
"You're a better man than me, Gunga Din!" Sorry, Alan, just sounded like you barely had a spare moment..obviously, you're in your glory, as you should be! Thanks for the great update...can hardly wait for February...
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Nov 2 2006, 10:54 PM
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#847
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Member Group: Members Posts: 699 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
Something I've wondered about is how powerful New Horizon's LORRI and Ralph cameras are compared to, say Cassini or Galileo's cameras. Some missions list microradian resolution, others focal lengths. Does anyone have a cheat sheet? Here's a cheat sheet for New Horizons. LORRI has similar resolution per pixel to the Galileo and Cassini narrow-angle cameras, though it's a much simpler, more lightweight design and raw images therefore aren't quite so crisp. They sharpen up nicely with a little post-processing, though. |
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Guest_Sunspot_* |
Nov 2 2006, 11:23 PM
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#848
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Guests |
How large will Jupiter appear (in pixels) in the first images to be taken in January?
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Nov 3 2006, 12:11 PM
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#849
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Member Group: Members Posts: 529 Joined: 19-February 05 Member No.: 173 |
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Nov 28 2006, 04:51 PM
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#850
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Senior Member Group: Members Posts: 1582 Joined: 14-October 05 From: Vermont Member No.: 530 |
New Horizons makes first Pluto sighting:
http://pluto.jhuapl.edu/news_center/news/112806.php So LORRI will be used to search for a possible farther-out Kuiper object? That I did not know... |
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Nov 28 2006, 05:43 PM
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#851
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Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
New Horizons makes first Pluto sighting: http://pluto.jhuapl.edu/news_center/news/112806.php So LORRI will be used to search for a possible farther-out Kuiper object? That I did not know... I have cropped the image and tried to make a comparison with another Pluto image, somethings fit, somethings don't, no science here folks... -------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Nov 28 2006, 07:24 PM
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#852
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IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
This is absolutely amazing, I never expected NH to image Pluto this early in its mission. Can't wait to see Pluto images in 2015 .
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Nov 28 2006, 10:59 PM
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#853
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
Wow.
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Guest_John Flushing_* |
Nov 29 2006, 02:31 AM
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#854
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Alan Stern...Do you have any idea as to what Kuiper Belt Object you will visit after the Pluto/Charon flyby?
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Nov 29 2006, 03:15 AM
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#855
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
John,
Alan's team doesn't have a firm destination yet for the probe after Pluto. The volume beyond Pluto where New Horizons could potentially travel is currently in an unfavorable position for detection. See the recent article about NH imaging Pluto? Any potential KBOs NH would visit are in a similar star field, with many faint stars and difficult to detect. Once the volume has moved out of the crowded star field, and some new survey telescopes come on-line, the team expects to find potential targets in the ~50km range. There's some additional detail either here or on the NH website. Why is everyone so surprised that NH can "see" Pluto? Pluto is visible from pretty modest telescopes here on Earth, and NH doesn't have to deal with any light pollution. Other than being in a crowded star field, Pluto should be a piece of cake for NH. More importantly, when are the Saturn, Neptune and Uranus photos? -------------------- 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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