Presentation	2008-02-29 Real-Time Estimation of Geosynchronous Orbit : Performance Test Sei-ichiro KAWASE,
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Abstract(in English)	Real-time orbit estimation has proved practical for a satellite that uses electric thrusts twice a day for geosynchronous station keeping. Range data are collected at two ground stations and are input to a Kalman filter to estimate the longitude/latitude position of the satellite. The filter shows a transitional residual over a hundred meters after each thrusting and then converges quickly. This residual provides the monitoring of thruster actions. Orbit estimation results agree with optical observations to a few milli-degrees, thus proving sufficient accuracy for geosynchronous orbits.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	Communication satellite / Electric propulsion / Overcrowded orbit / Kalman filter
Paper #	SANE2007-131
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Conference Information
Committee	SANE
Conference Date	2008/2/21(1days)
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Paper Information
Registration To	Space, Aeronautical and Navigational Electronics (SANE)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Real-Time Estimation of Geosynchronous Orbit : Performance Test
Sub Title (in English)
Keyword(1)	Communication satellite
Keyword(2)	Electric propulsion
Keyword(3)	Overcrowded orbit
Keyword(4)	Kalman filter
1st Author's Name	Sei-ichiro KAWASE
1st Author's Affiliation	NICT Space Communication Center()
Date	2008-02-29
Paper #	SANE2007-131
Volume (vol)	vol.107
Number (no)	496
Page	pp.pp.-
#Pages	4
Date of Issue