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ICE / ISEE-3, First comet encounter September 1985
Guest_PhilCo126_*
post Jan 24 2007, 06:43 PM
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Any weblinks where we can learn something about the where-abouts of ICE/ISEE ( International Comet Explorer / International Sun Earth Explorer ) as the craft was expected to return to Earth in 2014?
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robspace54
post Feb 16 2007, 05:17 PM
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From the document below, which is a very long Word document. 37 pages and over 10 Mbytes in all.

highorbits.jhuapl.edu/aplmisns.doc


"Three delta-V maneuvers totaling 42 m/sec were performed in 1985 to target ICE to fly through the tail axis of Comet Giacobini Zinner about 8000 km from the nucleus. More details of the highly successful encounter are given elsewhere.

In 2014, ICE will pass near the Earth, and an in-plane delta-V of 1.5 m/sec and an out-of-plane delta-V of 39 m/sec were performed on February 27 and April 7, 1986, respectively, to target a lunar swingby on August 10, 2014.

That swingby plus some small maneuvers could capture ICE back into an Earth orbit, perhaps even returning it to a libration-point orbit14. ISEE-3/ICE may be known to most for its comet “first”, but in astronautics it is most famous for pioneering the use of both libration-point and double-lunar-swingby orbits."


Rob
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Guest_PhilCo126_*
post Feb 14 2008, 08:01 PM
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Indeed the multiple lunar flybys (5 in total in 1983) were needed to establish the transfer trajectory towards comet Giacobini-Zinner. (closest approach 7800 kilometers on 11th September 1985)
The spacecraft even flew 0.2 AU on the Sunward side of comet Halley on 28th March 1986.
Funny note: NASA has donated the spacecraft to the National Air & Space Museum if it could be captured/recovered during the Earth flyby in the year 2014 laugh.gif
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Guest_PhilCo126_*
post Sep 19 2008, 03:44 PM
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6 years to go before it comes close to Earth again smile.gif

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elakdawalla
post Sep 20 2008, 02:09 AM
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PhilCo or anybody else who has a collection of old journals: do any of you have the an issue of the Journal of the Astronautical Sciences from 2001, vol. 49, no. 1? I'm looking for an article "The flight of ISEE-3/ICE: Origins, mission history, and a legacy," specifically, figure 29...

--Emily


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ElkGroveDan
post Sep 20 2008, 02:54 AM
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QUOTE (elakdawalla @ Sep 19 2008, 07:09 PM) *
PhilCo or anybody else who has a collection of old journals: do any of you have the an issue of the Journal of the Astronautical Sciences from 2001, vol. 49, no. 1? I'm looking for an article "The flight of ISEE-3/ICE: Origins, mission history, and a legacy," specifically, figure 29...

There are some ICEE orbital graphics here Emily (page 12 onward) if that's what you are looking for
http://www.ieec.fcr.es/libpoint/papers/dunham.pdf


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robspace54
post Oct 10 2008, 02:09 PM
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Here is a photo of ISEE-3 plus a diagram from the depths of the Internet. And for comparison a picture of ISEE-1.

Rob
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stevesliva
post Oct 10 2008, 03:07 PM
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QUOTE (ElkGroveDan @ Sep 19 2008, 10:54 PM) *
There are some ICEE orbital graphics here Emily (page 12 onward) if that's what you are looking for
http://www.ieec.fcr.es/libpoint/papers/dunham.pdf


Figure 4 was very informative!
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robspace54
post Oct 15 2008, 01:16 PM
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This link is to a Time magazine article from long ago on ISEE-3 / ICE - first comet encounter by humans:

http://www.time.com/time/magazine/article/...,959946,00.html

Interesting reading!

Rob
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jgoldader
post Jan 16 2009, 08:08 PM
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Hello,

I'm starting a scratchbuild of ISEE-3/ICE in 1/24 scale. The images & other info posted here were a great start.

According to the press kit, the spacecraft sounds to be mostly hollow and open at the bottom side, with the exception of a cone-shaped structure that extends down from the instrument shelf (visible in top or oblique photos & drawings) to connect to the launch vehicle payload adapter. I'm visualizing something like the Pioneer Venus orbiter, where you could see all the way in from underneath.

Does anybody have a picture of the underside of ISEE-3/ICE to confirm this?

Thanks very much!
Jeff
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robspace54
post Jan 20 2009, 07:46 PM
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Jeff this is Rob (Yahoo - Space Modeler member). I'll see what I have at home, if the Internet is up there. We lost our modem over the weekend and it was to be repaired today. Have you checked the Files on the S-M website? There is a photo of ICE on the spin balance table that shows part of the lower structure.

Part 2 - I found this diagram of the gamma ray detector which is mounted on the aft end. The diagram shows no protruding structure. That kind of structure would block the -Z axis antenna. The diagram is from a data set report found on the internet.


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jgoldader
post Jan 20 2009, 09:59 PM
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QUOTE (robspace54 @ Jan 20 2009, 02:46 PM) *
Jeff this is Rob (Yahoo - Space Modeler member). I'll see what I have at home, if the Internet is up there. We lost our modem over the weekend and it was to be repaired today. Have you checked the Files on the S-M website? There is a photo of ICE on the spin balance table that shows part of the lower structure.

Part 2 - I found this diagram of the gamma ray detector which is mounted on the aft end. The diagram shows no protruding structure. That kind of structure would block the -Z axis antenna. The diagram is from a data set report found on the internet.


Rob,

Thanks very much for the diagram! I hadn't run into that one, and all of a sudden, this model got a lot easier! I do have the photo of ICE on the spin table, and between the two views, can make a reasonable go at the underside.

Also, I've sent a note to the ICE contact listed at NSSDC, in case he can provide any more information.

Shameless endorsement: For anyone reading this who has interest in modeling real spacecraft, the best resource I've found online is the Yahoo! space-modelers interest group Rob mentioned. Even if you don't care about modeling, thousands of imagses and drawings are in the archives--a lot of history is being preserved there.

Jeff
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robspace54
post Jan 21 2009, 01:59 PM
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Here is the ISEE 3 (ICE) S-band antenna - 4 inch diameter x 30 inches long
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djellison
post Sep 5 2012, 09:44 PM
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So - time warp for a thread time but...

http://www.planetary.org/blogs/emily-lakda.../2008/1673.html

In that awesome article, Emily mentioned that it would need to be reactivated in 2012 for a 2014 recapture.

Any news on that? I've heard nothing.
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tedstryk
post Sep 8 2012, 02:18 AM
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QUOTE (djellison @ Sep 5 2012, 09:44 PM) *
So - time warp for a thread time but...

http://www.planetary.org/blogs/emily-lakda.../2008/1673.html

In that awesome article, Emily mentioned that it would need to be reactivated in 2012 for a 2014 recapture.

Any news on that? I've heard nothing.


I've done a lot of searching on this and come up dry.


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