Two-site orbit determination: The 2003 GEO observation campaign from Collepardo and Mallorca

Porfilio, Manfredi; Piergentili, Fabrizio; Graziani, Filippo

doi:10.1016/j.asr.2006.06.004

Cited by 22 publications

(10 citation statements)

References 4 publications

(6 reference statements)

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“…The best accuracy in determining the target position is achieved when the observing directions intersect with an angle of 90 degrees (Porfilio et al 2006). We confirmed that the minimum error occurs at the 1,600 km baseline length in case of the 800 km altitude LEO satellite.…”

Section: Conditions For Two-site Optical Ob-servationsupporting

confidence: 66%

“…It requires an improvement with extra data. GAUSS team says that there are two ways to accomplish a complete orbit determination: follow-up observations or two-site surveys (Porfilio et al 2006).…”

Section: Improvement Of the Iod Results With The Differential Correctionmentioning

confidence: 99%

“…The observation system, the Group of Astrodynamics of the University of Rome "La Sapienza" (GAUSS), consisted of two optical telescopes with 1,000 km of direct distance, between Collepardo and Mallorca. The results of the two-site orbit determination were outstanding when compared to those of the one-site orbit determination (Porfilio et al 2006). Another attempt for GEO satellite using CASTOR II and SMART-Scope with 30 km of the baseline for endto-end of Ottawa, resulted in not enough accuracy due to the short baseline (Earl 2005).…”

Section: Introductionmentioning

confidence: 97%

“…The aforementioned two campaigns showed that the accuracy was too bad to determine the range with a short baseline of two telescopes. GAUSS team used the baseline about 1,000 km and the other team used the baseline of only 30 km (Earl 2005, Porfilio et al 2006. Fig.…”

Section: Determining the Range With Optical Observationmentioning

confidence: 99%

“…In general, simultaneous optical observation has not been used main option for GEO satellite tracking. Porfilio et al (2006) pointed out two drawbacks related the simultaneous observation which the weather and observatory condition and the altitude limitation for the satellite orbit. The joint campaign for two-site orbit determination was implemented in September 2003.…”

Section: Introductionmentioning

confidence: 99%

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Two-Site Optical Observation and Initial Orbit Determination for Geostationary Earth Orbit Satellites

Choi¹,

Choi²,

Yim³

et al. 2010

Journal of Astronomy and Space Sciences

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Optical observation system provides angle-only measurement for orbit determination of space object. Range measurement can be directly acquired using laser ranging or tone ranging system. Initial orbit determination (IOD) by using angle-only data set shows discrepancy according to the measurement time interval. To solve this problem, range measurement data should be added for IOD. In this study, two-site optical observation was used to derive the range information. We have observed nine geostationary earth orbit satellites by using two-site optical observation system. The determination result of the range shows the accuracy over 99.5% compared to the results from the satellite tool kit simulation. And we confirmed that the orbit determination by the Herrick-Gibbs method with the range information obtained from the two-site observation is more accurate than the orbit determination by Gauss method with the one-site observation. For more accurate two-site optical observation, a baseline should satisfy an optimal condition of length and more precise observation system needed.

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Section: Conditions For Two-site Optical Ob-servationsupporting

confidence: 66%

Section: Improvement Of the Iod Results With The Differential Correctionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Determining the Range With Optical Observationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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