SOHO - SOHO Mission Interruption Joint NASA/ESA...

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SOHO Mission Interruption Joint NASA/ESA Investigation Board Final Report August 31, 1998 SOHO Mission Interruption Joint NASA/ESA Investigation Board
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______________________________ Prof. Massimo Trella, Co-Chairperson Inspector General, ESA _______________________________ Dr. Michael Greenfield, Co-Chairperson Deputy Associate Administrator, Office of Safety and Mission Assurance NASA/Headquarters _____________________________ Ellen L. Herring, Executive Secretary Office of Systems Safety and Mission Assurance NASA’s Goddard Space Flight Center _______________________________ John Credland Head, Science Projects Department ESA/ESTEC _______________________________ Dr. H. Richard Freeman Chief Engineer, Applied Engineering and Technology Directorate NASA’s Goddard Space Flight Center _______________________________ Robert Laine ESA XMM Project Manager ESA/ESTEC _______________________________ William Kilpatrick Chief, Systems Engineering Laboratory NASA’s Marshall Space Flight Center _______________________________ Dino Machi Project Manager, International Flight Projects NASA’s Goddard Space Flight Center ______________________________ Alan Reth Guidance Naviagation, and Control Center Applied Engineering and Technology Directorate NASA’s Goddard Space Flight Center _______________________________ Alan Smith Head, Flight Operations Division ESA/ESOC SOHO MISSION INTERRUPTION JOINT ESA/NASA INVESTIGATION BOARD REPORT TABLE OF CONTENTS TOPIC PAGE EXECUTIVE SUMMARY 1 INTRODUCTION 2 BACKGROUND 3 FACTORS DIRECTLY CONTRIBUTING TO THE LOSS 6 FACTORS INDIRECTLY CONTRIBUTING TO THE LOSS 8 Ground Procedures Procedure Implementation Management Structure and Process Ground Systems RECOMMENDATIONS 14
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Ground Procedures Procedure Implementation Management Structure and Process Ground Systems APPENDICES APPENDIX A. Assignment Letter APPENDIX B. Summary of Interviewed Individuals APPENDIX C. Sequence of Events APPENDIX D. Failure Event Tree APPENDIX E. A_CONFIG_N Modification History ACRONYM LIST EXECUTIVE SUMMARY Contact with the SOlar Heliospheric Observatory (SOHO) spacecraft was lost in the early morning hours of June 25, 1998, Eastern Daylight Time (EDT), during a planned period of calibrations, maneuvers, and spacecraft reconfigurations. Prior to this the SOHO operations team had concluded two years of extremely successful science operations. A joint European Space Agency (ESA)/National Aeronautics and Space Administration (NASA) engineering team has been planning and executing recovery efforts since loss of contact with some success to date. ESA and NASA management established the SOHO Mission Interruption Joint Investigation Board to determine the actual or probable cause(s) of the SOHO spacecraft mishap. The Board has concluded that there were no anomalies
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This note was uploaded on 03/05/2012 for the course AERO 423 taught by Professor Staff during the Spring '08 term at Texas A&M.

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SOHO - SOHO Mission Interruption Joint NASA/ESA...

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