Sun outage prediction modeling for Earth orbiting satellites

Srivastava, Vineet K.; Mishra, Padmdeo

doi:10.1007/s42401-022-00149-7

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Calculation Of Ballistic Coefficients From Optical Angle Mea...1

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2023

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“…In Equation (2),

denotes the SGP4 model comprising dozens of equations. The SGP4 model can provide the orbital parameters at a specific time from the mean elements [ 17 , 18 , 19 , 20 ]. The orbit parameter

of the orbit determination result is used to reverse calculate the instantaneous orbital elements

.…”

Section: Calculation Of Ballistic Coefficients From Optical Angle Mea...mentioning

confidence: 99%

Ballistic Coefficient Calculation Based on Optical Angle Measurements of Space Debris

Ding,

Li,

Liu

et al. 2023

Sensors

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Atmospheric drag is an important factor affecting orbit determination and prediction of low-orbit space debris. To obtain accurate ballistic coefficients of space debris, we propose a calculation method based on measured optical angles. Angle measurements of space debris with a perigee height below 1400 km acquired from a photoelectric array were used for orbit determination. Perturbation equations of atmospheric drag were used to calculate the semi-major-axis variation. The ballistic coefficients of space debris were estimated and compared with those published by the North American Aerospace Defense Command in terms of orbit prediction error. The 48 h orbit prediction error of the ballistic coefficients obtained from the proposed method is reduced by 18.65% compared with the published error. Hence, our method seems suitable for calculating space debris ballistic coefficients and supporting related practical applications.

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“…In Equation (2),

denotes the SGP4 model comprising dozens of equations. The SGP4 model can provide the orbital parameters at a specific time from the mean elements [ 17 , 18 , 19 , 20 ]. The orbit parameter

of the orbit determination result is used to reverse calculate the instantaneous orbital elements

.…”

Section: Calculation Of Ballistic Coefficients From Optical Angle Mea...mentioning

confidence: 99%