Post Galileo-Europa-Mission Satellite Tour Design
The Galileo orbiter mission as originally envisioned would orbit Jupiter eleven times, closely encountering either Europa, Ganymede, or Callisto on ten of those orbits. This nominal or prime mission began with Jupiter orbit insertion on December 7, 1995 and ended as designed ten encounters later on...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20000057060 2023-05-15T16:38:19+02:00 Post Galileo-Europa-Mission Satellite Tour Design Halsell, C. A. Haw, R. J. Pojman, J. L. Johannesen, J. R. Wilson, M. G. Unclassified, Unlimited, Publicly available [2000] application/pdf http://hdl.handle.net/2060/20000057060 unknown Document ID: 20000057060 http://hdl.handle.net/2060/20000057060 No Copyright CASI Astronautics (General) 2000 ftnasantrs 2015-03-15T02:42:57Z The Galileo orbiter mission as originally envisioned would orbit Jupiter eleven times, closely encountering either Europa, Ganymede, or Callisto on ten of those orbits. This nominal or prime mission began with Jupiter orbit insertion on December 7, 1995 and ended as designed ten encounters later on December 1, 1997. An extension to this nominal mission was proposed, developed and accepted in 1997 and was designed to continue orbital operations through an additional two years until December 31, 1999. This follow- on mission, labelled the Galileo Europa Mission, visits Europa eight times, Callisto four times, and ends with two visits to Io. It augments the prime mission by offering many attractive additional opportunities for science, especially remote sensing. The opportunities include increased scrutiny of Europa, a world with a possible global ocean hidden beneath the surface ice-cap, and the first high resolution images of Io (the only major satellite not encountered during the nominal tour). In 1998 a new effort was begun to investigate a possible extension to GEM. Remote sensing observations will continue to be important but moreover, valuable unique in situ fields and particles measurements will be a high priority motivation in the design and selection of any post-GEM tour. A significant design feature of a possible post-GEM tour would be the extension of the mission through the December 2000 timeframe. This would permit the possibility of simultaneous fields and particles experiments coordinated with the Cassini spacecraft as it swings by the Jupiter system for the final gravity assist enroute to Saturn. Other/Unknown Material Ice cap NASA Technical Reports Server (NTRS) Ganymede ENVELOPE(-68.477,-68.477,-70.857,-70.857) Jupiter ENVELOPE(101.133,101.133,-66.117,-66.117) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
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ftnasantrs |
language |
unknown |
topic |
Astronautics (General) |
spellingShingle |
Astronautics (General) Halsell, C. A. Haw, R. J. Pojman, J. L. Johannesen, J. R. Wilson, M. G. Post Galileo-Europa-Mission Satellite Tour Design |
topic_facet |
Astronautics (General) |
description |
The Galileo orbiter mission as originally envisioned would orbit Jupiter eleven times, closely encountering either Europa, Ganymede, or Callisto on ten of those orbits. This nominal or prime mission began with Jupiter orbit insertion on December 7, 1995 and ended as designed ten encounters later on December 1, 1997. An extension to this nominal mission was proposed, developed and accepted in 1997 and was designed to continue orbital operations through an additional two years until December 31, 1999. This follow- on mission, labelled the Galileo Europa Mission, visits Europa eight times, Callisto four times, and ends with two visits to Io. It augments the prime mission by offering many attractive additional opportunities for science, especially remote sensing. The opportunities include increased scrutiny of Europa, a world with a possible global ocean hidden beneath the surface ice-cap, and the first high resolution images of Io (the only major satellite not encountered during the nominal tour). In 1998 a new effort was begun to investigate a possible extension to GEM. Remote sensing observations will continue to be important but moreover, valuable unique in situ fields and particles measurements will be a high priority motivation in the design and selection of any post-GEM tour. A significant design feature of a possible post-GEM tour would be the extension of the mission through the December 2000 timeframe. This would permit the possibility of simultaneous fields and particles experiments coordinated with the Cassini spacecraft as it swings by the Jupiter system for the final gravity assist enroute to Saturn. |
author |
Halsell, C. A. Haw, R. J. Pojman, J. L. Johannesen, J. R. Wilson, M. G. |
author_facet |
Halsell, C. A. Haw, R. J. Pojman, J. L. Johannesen, J. R. Wilson, M. G. |
author_sort |
Halsell, C. A. |
title |
Post Galileo-Europa-Mission Satellite Tour Design |
title_short |
Post Galileo-Europa-Mission Satellite Tour Design |
title_full |
Post Galileo-Europa-Mission Satellite Tour Design |
title_fullStr |
Post Galileo-Europa-Mission Satellite Tour Design |
title_full_unstemmed |
Post Galileo-Europa-Mission Satellite Tour Design |
title_sort |
post galileo-europa-mission satellite tour design |
publishDate |
2000 |
url |
http://hdl.handle.net/2060/20000057060 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(-68.477,-68.477,-70.857,-70.857) ENVELOPE(101.133,101.133,-66.117,-66.117) |
geographic |
Ganymede Jupiter |
geographic_facet |
Ganymede Jupiter |
genre |
Ice cap |
genre_facet |
Ice cap |
op_source |
CASI |
op_relation |
Document ID: 20000057060 http://hdl.handle.net/2060/20000057060 |
op_rights |
No Copyright |
_version_ |
1766028601412550656 |