New Horizons Jupiter Encounter |
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New Horizons Jupiter Encounter |
| Guest_AlexBlackwell_* |
 Jan 10 2007, 09:47 PM
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Jan 10 2007, 10:44 PM
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 Senior Member  Group: Members Posts: 2922 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
I didn't realize encounter will be up to June.
Do you have material yet to open such a topic for Roseta that will fligh by Mars on feb 27th? Exciting times once again... -------------------- |
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Jan 11 2007, 10:22 AM
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Founder Group: Chairman Posts: 14448 Joined: 8-February 04 Member No.: 1 |
New Horizons launched on Jan 19th 2006 and will fly past Jupiter on Feb 28th.
Comet McNaught pass the orbit of Jupiter about 10 days after the NH Launch - and will be on the way back out, crossing the orbit of Venus when NH makes it's closest approach to Jupiter. I don't think there's much chance of a competative race on the way back out again though  Doug |
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Jan 11 2007, 10:32 AM
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 Senior Member Group: Members Posts: 3652 Joined: 1-October 05 From: Croatia Member No.: 523 |
QUOTE (djellison @ Jan 11 2007, 11:22 AM)  I don't think there's much chance of a competative race on the way back out again though Not a chance. McNaught is on a very slightly hyperbolic trajectory, but NH will be on a major solar escape trajectory after Jupiter. Poor comet doesn't stand a chance of catching up. 
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Jan 11 2007, 10:50 AM
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Founder Group: Chairman Posts: 14448 Joined: 8-February 04 Member No.: 1 |
To Plutonian distances - McNaught is several years behind NH - quite something really.
Doug |
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Jan 15 2007, 07:55 PM
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 Member Group: Members Posts: 236 Joined: 21-June 05 Member No.: 417 |
How come NH is slowing down, now that it's approaching Jupiter? Its speed used to be 20+ km/s, but the last few weeks it's down to 19.9 km/s, and going slower by the day (currently 19.84 km/s). I'd think it would go faster and faster as it is pulled towards Jupiter.
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Jan 15 2007, 08:02 PM
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Founder Group: Chairman Posts: 14448 Joined: 8-February 04 Member No.: 1 |
The 'sphere of influence' for Jupiter hasn't been reached yet - the actual gravity assist period isn't very long.
Doug |
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Jan 15 2007, 11:43 PM
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Senior Member Group: Members Posts: 2922 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
Call it aphelium of the Hohmann orbit...
(ok, I've got some help from "The Basics of Spaceflight" for the orthograf, but what's wrong with that ?) 
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Jan 16 2007, 09:36 AM
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Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
QUOTE (climber @ Jan 15 2007, 11:43 PM) Call it aphelium of the Hohmann orbit... ehm..no Which aphelium? We're talking hyperbolic orbits here 
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Jan 16 2007, 11:49 AM
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 Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
QUOTE (remcook @ Jan 16 2007, 09:36 AM) ehm..no Which aphelium? We're talking hyperbolic orbits here Hahaha! Bob Shaw -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Jan 17 2007, 07:18 AM
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Senior Member Group: Members Posts: 2922 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
QUOTE (Bob Shaw @ Jan 16 2007, 12:49 PM) Hahaha! Bob Shaw Hahaha ! -------------------- |
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| Guest_AlexBlackwell_* |
Jan 18 2007, 06:22 PM
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Guests |
NASA Spacecraft En Route to Pluto Prepares for Jupiter Encounter
RELEASE: 07-012 NASA/JHUAPL January 18, 2007 Zooming to Pluto, New Horizons Closes in on Jupiter January 18, 2007 Jupiter Flyby Press Kit (1.8 Mb PDF) |
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Jan 18 2007, 07:08 PM
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Senior Member Group: Members Posts: 1598 Joined: 14-October 05 From: Vermont Member No.: 530 |
The Jupiter & Io LORRI photo caption mentions less turbulence in the Jovian Atmosphere than expected... can someone perhaps put Jupiters seasons in perspective, along with where in the Jovian year NH is vs. when Galileo was there?
http://pluto.jhuapl.edu/gallery/missionPho...piterAndIo.html |
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Jan 18 2007, 07:12 PM
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 Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
I didn't think Jupiter had seasons per se, since Jupiter (and its satellites) have only a negligible axial tilt. Jupiter's cloud belts and zones go through changes in albedo and amount of turbulence all the time, and I don't think they are tied to seasons. Compare images of Jupiter from the Pioneers, Voyagers, Hubble, Galileo, and now NH.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Jan 18 2007, 11:11 PM
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Junior Member Group: Members Posts: 86 Joined: 12-October 05 From: Beijing Member No.: 526 |
QUOTE (djellison @ Jan 16 2007, 04:02 AM) The 'sphere of influence' for Jupiter hasn't been reached yet - the actual gravity assist period isn't very long. Doug I made this page one year earlier, and could be useful: http://en.wikipedia.org/wiki/Talk:New_Hori...ers/2006-Jan-24 |
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