TY - GEN
T1 - Quantifying the impact of air drag models considering a rotating atmosphere in rso lifetime predictions
AU - Hassani, Ali
AU - Racelis, Danielle
AU - Jada, Sandeep K.
AU - Black, Jonathan
AU - Joerger, Mathieu
AU - Rosengren, Aaron J.
N1 - Publisher Copyright:
© 2020 The MITRE Corporation. All Rights Reserved.
PY - 2020
Y1 - 2020
N2 - This paper provides a comparative analysis of two different atmospheric drag models aimed at predicting the reentry of Resident Space Objects (RSO). We quantify the impact of considering a rotating atmosphere in the drag model, and analyze its effects on the Milankovitch elements, namely the angular momentum vector, and the Laplace-Runge-Lenz vector. The secular variation of the Milankovitch elements is expressed analytically through averaging. We evaluate the performance of the two formulations of the averaged equations of motion to provide accurate predictions of the orbital decay of RSO’s, by comparing simulated trajectories to those derived from the non-averaged dynamics, and to a documented spacecraft reentry event. Results show that accounting for atmospheric rotation in the averaged dynamics, provides simulated RSO trajectories closer to the non-averaged dynamics, and to the documented two-line element reentry data.
AB - This paper provides a comparative analysis of two different atmospheric drag models aimed at predicting the reentry of Resident Space Objects (RSO). We quantify the impact of considering a rotating atmosphere in the drag model, and analyze its effects on the Milankovitch elements, namely the angular momentum vector, and the Laplace-Runge-Lenz vector. The secular variation of the Milankovitch elements is expressed analytically through averaging. We evaluate the performance of the two formulations of the averaged equations of motion to provide accurate predictions of the orbital decay of RSO’s, by comparing simulated trajectories to those derived from the non-averaged dynamics, and to a documented spacecraft reentry event. Results show that accounting for atmospheric rotation in the averaged dynamics, provides simulated RSO trajectories closer to the non-averaged dynamics, and to the documented two-line element reentry data.
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M3 - Conference contribution
AN - SCOPUS:85097681681
SN - 9781624106088
T3 - Accelerating Space Commerce, Exploration, and New Discovery Conference, ASCEND 2020
BT - Accelerating Space Commerce, Exploration, and New Discovery Conference, ASCEND 2020
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - Accelerating Space Commerce, Exploration, and New Discovery Conference, ASCEND 2020
Y2 - 16 November 2020 through 19 November 2020
ER -