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GIOTTO Radio-Science Experiment: Drag Deceleration and Spacecraft Attitude Perturbations Expected During the Encounter with Comet P/Grigg-Skjellerup in July 1992

Paetzold, M., Porsche, H., Edenhofer, P. 1), Bird, M.K. 2), Volland, H. 2), (1992) GIOTTO Radio-Science Experiment: Drag Deceleration and Spacecraft Attitude Perturbations Expected During the Encounter with Comet P/Grigg-Skjellerup in July 1992. Astronomy and Astrophysics, 259, L15-L18.

Full text not available from this repository.

Abstract

The GIOTTO Radio-Science Experiment will repeat its observations performed during the GIOTTO-Halley flyby at the next encounter with Comet P/Grigg-Skjellerup in July 1992. The change in velocity due to the influx of cometary gas and dust will be determined by X-band ranging and Doppler measurements. Due to the lower flyby velocity (five times smaller) and the lower dust generation rate compared to Halley (ten times smaller), the change in velocity is estimated to be between 4 mm/s and 4 cm/s for a closest approach between 1000 km and 100 km, respectively. Large dust particle impacts (masses greater than 10 mg) on the spacecraft body may change the spin rate, resulting in a degradation of the real-time data link to Earth or, in the worst case, loss of data. Nutation is not considered a problem for this encounter.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1992,
Title:GIOTTO Radio-Science Experiment: Drag Deceleration and Spacecraft Attitude Perturbations Expected During the Encounter with Comet P/Grigg-Skjellerup in July 1992
Authors:
AuthorsInstitution or Email of Authors
Paetzold, M., Porsche, H., Edenhofer, P. 1), Bird, M.K. 2), Volland, H. 2), UNSPECIFIED
Date:1992
Journal or Publication Title:Astronomy and Astrophysics
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:259
Page Range:L15-L18
Status:Published
Keywords:Comet Grigg-Skjellerup, Giotto, Radio-science
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:UNSPECIFIED
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institut für Hochfrequenztechnik
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 08:47

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