Attachment PROBA-V_Mission_DeOr

PROBA-V_Mission_DeOr

LETTER submitted by USN

PROBA-V_Mission_DeOrbit-Analysis

2015-04-15

This document pretains to SES-LFS-20141015-00799 for License to use Foreign Satellite (earth) on a Satellite Earth Station filing.

IBFS_SESLFS2014101500799_1091765

PROBA-V Mission Analysis Report Ref. : PROBAV-RP-00077-VE Iss. : D Rev. : 2 Date : 16/03/10 Page : 33 4.7 DE-ORBITING According to the European Code of Conduct for Space Debris Mitigation [AD 8] spacecraft in LEO should be de-orbited, i.e. allowed to fall into the atmosphere and to burn up within 25 years of mission end. In other words, the spacecraft should de-orbit to an altitude range of 500 km-600 km at End Of Life (EOL). The space debris mitigation requirement OR-1 is wavered by DG (the Director general) of ESA, which implies that, there is no need to de-orbit at the end-of-life (EOL). Thus, there is no need of on-board propulsion system to de-orbit after EOL. The signed Request For Wavier (RFW) is in Appendix F: Waiver- Requirement “OR-1” Natural decay of PROBA-V from an altitude of 820 km is as shown in Figure 4-18. Figure 4-18: Natural decay of PROBA-V at 820 km for 250 years.

PROBA-V Mission Analysis Report Ref. : PROBAV-RP-00077-VE Iss. : D Rev. : 2 Date : 16/03/10 Page : 45 APPENDIX F: WAIVER- REQUIREMENT “OR-1” The wavier on space debris mitigation requirement “OR-1” is approved and signed by DG (the Director General) of ESA. Figure 0-1: Approved RFW on requirement “OR-1”


Document Created: 2015-04-15 11:10:58
Document Modified: 2015-04-15 11:10:58
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