• Title/Summary/Keyword: DSN Measurement Data Correction

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Development of a Measurement Data Algorithm of Deep Space Network for Korea Pathfinder Lunar Orbiter mission (달 탐사 시험용 궤도선을 위한 심우주 추적망의 관측값 구현 알고리즘 개발)

  • Kim, Hyun-Jeong;Park, Sang-Young;Kim, Min-Sik;Kim, Youngkwang;Lee, Eunji
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.45 no.9
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    • pp.746-756
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    • 2017
  • An algorithm is developed to generate measurement data of deep space network for Korea Pathfinder Lunar Orbiter (KPLO) mission. The algorithm can provide corrected measurement data for the Orbit Determination (OD) module in deep space. This study describes how to generate the computed data such as range, Doppler, azimuth angle and elevation angle. The geometric data were obtained by General Mission Analysis Tool (GMAT) simulation and the corrected data were calculated with measurement models. Therefore, the result of total delay includes effects of tropospheric delay, ionospheric delay, charged particle delay, antenna offset delay, and tropospheric refraction delay. The computed measurement data were validated by comparison with the results from Orbit Determination ToolBoX (ODTBX).