The determination of time variable gravity from constellation of non-dedicated satellites

BC Gunter; PG Ditmar; JG de Teixeira da Encarnacao

The determination of time variable gravity from constellation of non-dedicated satellites

BC Gunter, PG Ditmar, JG de Teixeira da Encarnacao

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Abstract

This study will assess the feasibility of using a constellation of non-dedicated satellites to determine Earth's time-variable gravity field. Precise orbit data from the FORMOSAT-3/COSMIC satellite constellation will be processed and the results will be compared to theoretical predictions. Provided accurate knowledge of the satellite orbits through GPS positioning only, the constellation should be able to provide information about the large scale (> 1000 km), high frequency (< 1 month) variations in the gravity field. The concept would also provide current and future dedicated gravity field missions with valuable information at the low degrees, thereby improving the overall recovery of the full spectrum of time-variable gravity. This is valuable not only for Earth observation, but for topics in mission design and orbit determination.

Original language	English
Title of host publication	AIAA/AAS Astrodynamics Specialist Meeting
Editors	AV Rao, TA Lovell, FK Chan, LA Cangahuala
Place of Publication	Pittsburgh Pensylvania
Publisher	American Astronautical Society
Pages	1999-2007
Number of pages	9
Publication status	Published - 2009
Event	AIAA/AAS Astrodynamics Specialist Meeting - Pittsburgh Pensylvania Duration: 10 Aug 2009 → 13 Aug 2009

Publication series

Name
Publisher	American Astronautical Society

Name
Volume	AAS-09

Conference

Conference	AIAA/AAS Astrodynamics Specialist Meeting
Period	10/08/09 → 13/08/09

Keywords

Conf.proc. > 3 pag

Access to Document

http://www.univelt.com/book=1349

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@inproceedings{e80d9c30d4c0450eb22afda68bee316c,

title = "The determination of time variable gravity from constellation of non-dedicated satellites",

abstract = "This study will assess the feasibility of using a constellation of non-dedicated satellites to determine Earth's time-variable gravity field. Precise orbit data from the FORMOSAT-3/COSMIC satellite constellation will be processed and the results will be compared to theoretical predictions. Provided accurate knowledge of the satellite orbits through GPS positioning only, the constellation should be able to provide information about the large scale (> 1000 km), high frequency (< 1 month) variations in the gravity field. The concept would also provide current and future dedicated gravity field missions with valuable information at the low degrees, thereby improving the overall recovery of the full spectrum of time-variable gravity. This is valuable not only for Earth observation, but for topics in mission design and orbit determination.",

keywords = "Conf.proc. > 3 pag",

author = "BC Gunter and PG Ditmar and {de Teixeira da Encarnacao}, JG",

note = "NEO; AIAA/AAS Astrodynamics Specialist Meeting ; Conference date: 10-08-2009 Through 13-08-2009",

year = "2009",

language = "English",

publisher = "American Astronautical Society",

pages = "1999--2007",

editor = "AV Rao and TA Lovell and FK Chan and LA Cangahuala",

booktitle = "AIAA/AAS Astrodynamics Specialist Meeting",

}

Gunter, BC, Ditmar, PG & de Teixeira da Encarnacao, JG 2009, The determination of time variable gravity from constellation of non-dedicated satellites. in AV Rao, TA Lovell, FK Chan & LA Cangahuala (eds), AIAA/AAS Astrodynamics Specialist Meeting., AAS 09-422, American Astronautical Society, Pittsburgh Pensylvania, pp. 1999-2007, AIAA/AAS Astrodynamics Specialist Meeting, 10/08/09.

The determination of time variable gravity from constellation of non-dedicated satellites. / Gunter, BC; Ditmar, PG ; de Teixeira da Encarnacao, JG.

AIAA/AAS Astrodynamics Specialist Meeting. ed. / AV Rao; TA Lovell; FK Chan; LA Cangahuala. Pittsburgh Pensylvania : American Astronautical Society, 2009. p. 1999-2007 AAS 09-422.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

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AU - Ditmar, PG

AU - de Teixeira da Encarnacao, JG

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PY - 2009

Y1 - 2009

N2 - This study will assess the feasibility of using a constellation of non-dedicated satellites to determine Earth's time-variable gravity field. Precise orbit data from the FORMOSAT-3/COSMIC satellite constellation will be processed and the results will be compared to theoretical predictions. Provided accurate knowledge of the satellite orbits through GPS positioning only, the constellation should be able to provide information about the large scale (> 1000 km), high frequency (< 1 month) variations in the gravity field. The concept would also provide current and future dedicated gravity field missions with valuable information at the low degrees, thereby improving the overall recovery of the full spectrum of time-variable gravity. This is valuable not only for Earth observation, but for topics in mission design and orbit determination.

AB - This study will assess the feasibility of using a constellation of non-dedicated satellites to determine Earth's time-variable gravity field. Precise orbit data from the FORMOSAT-3/COSMIC satellite constellation will be processed and the results will be compared to theoretical predictions. Provided accurate knowledge of the satellite orbits through GPS positioning only, the constellation should be able to provide information about the large scale (> 1000 km), high frequency (< 1 month) variations in the gravity field. The concept would also provide current and future dedicated gravity field missions with valuable information at the low degrees, thereby improving the overall recovery of the full spectrum of time-variable gravity. This is valuable not only for Earth observation, but for topics in mission design and orbit determination.

KW - Conf.proc. > 3 pag

UR - http://www.univelt.com/book=1349

M3 - Conference contribution

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EP - 2007

BT - AIAA/AAS Astrodynamics Specialist Meeting

A2 - Rao, AV

A2 - Lovell, TA

A2 - Chan, FK

A2 - Cangahuala, LA

PB - American Astronautical Society

CY - Pittsburgh Pensylvania

T2 - AIAA/AAS Astrodynamics Specialist Meeting

Y2 - 10 August 2009 through 13 August 2009

ER -