Modeling Earth Albedo for Satellites in Earth Orbit

Dan Bhanderi, Thomas Bak

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

16 Citationer (Scopus)
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Resumé

Many satellite are influences by the Earthøs albedo, though very few model schemes exist.in order to predict this phenomenon. Earth albedo is often treated as noise, or ignored completely. When applying solar cells in the attitude hardware, Earth albedo can cause the attitude estimate to deviate with as much as 20 deg. Digital Sun sensors with Earth albedo correction in hardware exist, but are expensive. In addition, albedo estimates are necessary in thermal calculations and power budgets. We present a modeling scheme base4d on Eartht reflectance, measured by NASA's Total Ozone Mapping Spectrometer, in which the Earth Probe Satellite has recorded reflectivity data daily since mid 1996. The mean of these data can be used to calculate the Earth albedo given the positions of the satellite and the Sun. Our results show that the albedo varies highly with the solar angle to the satellite's field of view, and that the longitude of the satellite position is significant to the model output. The results also show that the calculated albedo is generally lower than it would be expected based only on the reflectivity data.
OriginalsprogEngelsk
TitelProceedings of AIAA Conference on Guidance, Navigation and Control
Antal sider12
ForlagAIAA
Publikationsdato2005
ISBN (Elektronisk)1563477378
StatusUdgivet - 2005
BegivenhedAIAA Conference on Guidance, Navigation and Control - San Francisco, USA
Varighed: 15 aug. 200518 aug. 2005

Konference

KonferenceAIAA Conference on Guidance, Navigation and Control
LandUSA
BySan Francisco
Periode15/08/200518/08/2005

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albedo
modeling
reflectivity
hardware
TOMS
field of view
reflectance
probe
sensor

Citer dette

Bhanderi, D., & Bak, T. (2005). Modeling Earth Albedo for Satellites in Earth Orbit. I Proceedings of AIAA Conference on Guidance, Navigation and Control AIAA.
Bhanderi, Dan ; Bak, Thomas. / Modeling Earth Albedo for Satellites in Earth Orbit. Proceedings of AIAA Conference on Guidance, Navigation and Control. AIAA, 2005.
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title = "Modeling Earth Albedo for Satellites in Earth Orbit",
abstract = "Many satellite are influences by the Earth{\o}s albedo, though very few model schemes exist.in order to predict this phenomenon. Earth albedo is often treated as noise, or ignored completely. When applying solar cells in the attitude hardware, Earth albedo can cause the attitude estimate to deviate with as much as 20 deg. Digital Sun sensors with Earth albedo correction in hardware exist, but are expensive. In addition, albedo estimates are necessary in thermal calculations and power budgets. We present a modeling scheme base4d on Eartht reflectance, measured by NASA's Total Ozone Mapping Spectrometer, in which the Earth Probe Satellite has recorded reflectivity data daily since mid 1996. The mean of these data can be used to calculate the Earth albedo given the positions of the satellite and the Sun. Our results show that the albedo varies highly with the solar angle to the satellite's field of view, and that the longitude of the satellite position is significant to the model output. The results also show that the calculated albedo is generally lower than it would be expected based only on the reflectivity data.",
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Bhanderi, D & Bak, T 2005, Modeling Earth Albedo for Satellites in Earth Orbit. i Proceedings of AIAA Conference on Guidance, Navigation and Control. AIAA, AIAA Conference on Guidance, Navigation and Control, San Francisco, USA, 15/08/2005.

Modeling Earth Albedo for Satellites in Earth Orbit. / Bhanderi, Dan; Bak, Thomas.

Proceedings of AIAA Conference on Guidance, Navigation and Control. AIAA, 2005.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - Modeling Earth Albedo for Satellites in Earth Orbit

AU - Bhanderi, Dan

AU - Bak, Thomas

PY - 2005

Y1 - 2005

N2 - Many satellite are influences by the Earthøs albedo, though very few model schemes exist.in order to predict this phenomenon. Earth albedo is often treated as noise, or ignored completely. When applying solar cells in the attitude hardware, Earth albedo can cause the attitude estimate to deviate with as much as 20 deg. Digital Sun sensors with Earth albedo correction in hardware exist, but are expensive. In addition, albedo estimates are necessary in thermal calculations and power budgets. We present a modeling scheme base4d on Eartht reflectance, measured by NASA's Total Ozone Mapping Spectrometer, in which the Earth Probe Satellite has recorded reflectivity data daily since mid 1996. The mean of these data can be used to calculate the Earth albedo given the positions of the satellite and the Sun. Our results show that the albedo varies highly with the solar angle to the satellite's field of view, and that the longitude of the satellite position is significant to the model output. The results also show that the calculated albedo is generally lower than it would be expected based only on the reflectivity data.

AB - Many satellite are influences by the Earthøs albedo, though very few model schemes exist.in order to predict this phenomenon. Earth albedo is often treated as noise, or ignored completely. When applying solar cells in the attitude hardware, Earth albedo can cause the attitude estimate to deviate with as much as 20 deg. Digital Sun sensors with Earth albedo correction in hardware exist, but are expensive. In addition, albedo estimates are necessary in thermal calculations and power budgets. We present a modeling scheme base4d on Eartht reflectance, measured by NASA's Total Ozone Mapping Spectrometer, in which the Earth Probe Satellite has recorded reflectivity data daily since mid 1996. The mean of these data can be used to calculate the Earth albedo given the positions of the satellite and the Sun. Our results show that the albedo varies highly with the solar angle to the satellite's field of view, and that the longitude of the satellite position is significant to the model output. The results also show that the calculated albedo is generally lower than it would be expected based only on the reflectivity data.

M3 - Article in proceeding

BT - Proceedings of AIAA Conference on Guidance, Navigation and Control

PB - AIAA

ER -

Bhanderi D, Bak T. Modeling Earth Albedo for Satellites in Earth Orbit. I Proceedings of AIAA Conference on Guidance, Navigation and Control. AIAA. 2005