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Abstract <p>A lunar eclipse occurs on the Earth orbiting satellite when the Sun, Moon and the satellite are aligned in such a way that shadow of the Moon falls on the satellite. In 2015, Srivastava et al. (2015) extended the well-known Earth shadow models: projection map and line of intersection models for predicting the lunar shadow eclipses of the Earth orbiting satellites. In this paper, we extend other existing available Earth conical shadow models such as algorithm 34 of Vallado (2013), Wertz (2002), and Hubaux (2012) for the lunar shadow eclipses of the Earth orbiting satellites. The extended lunar shadow models are simulated on Indian LEO and GEO satellites: Oceansat-2 and <i>INSAT-4CR</i>. Further, an assessment of the extended models is studied with the lunar shadow model given by Escobal and Robertson (1967) and commercial software package, Systems Tool Kit (<i>STK</i>) of Ansys Inc.</p>

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Assessment of Earth Conical Shadow Models for Predicting Lunar Eclipses of Earth Orbiting Satellites

  • 期刊论文

  • 发表日期：

    2026年4月1日

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  • Vineet K. Srivastava

摘要

Abstract

A lunar eclipse occurs on the Earth orbiting satellite when the Sun, Moon and the satellite are aligned in such a way that shadow of the Moon falls on the satellite. In 2015, Srivastava et al. (2015) extended the well-known Earth shadow models: projection map and line of intersection models for predicting the lunar shadow eclipses of the Earth orbiting satellites. In this paper, we extend other existing available Earth conical shadow models such as algorithm 34 of Vallado (2013), Wertz (2002), and Hubaux (2012) for the lunar shadow eclipses of the Earth orbiting satellites. The extended lunar shadow models are simulated on Indian LEO and GEO satellites: Oceansat-2 and INSAT-4CR. Further, an assessment of the extended models is studied with the lunar shadow model given by Escobal and Robertson (1967) and commercial software package, Systems Tool Kit (STK) of Ansys Inc.