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Challenges Identifying Newly Launched Objects

Challenges Identifying Newly Launched Objects. Dr. T.S. Kelso. Overview. Background Preparing for Success Methodology Tool Development & Validation Operational Performance Conclusions. Background. Large multi-payload deployments present unique SSA challenges

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Challenges Identifying Newly Launched Objects

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  1. Challenges Identifying Newly Launched Objects Dr. T.S. Kelso

  2. Overview • Background • Preparing for Success • Methodology • Tool Development & Validation • Operational Performance • Conclusions

  3. Background • Large multi-payload deployments present unique SSA challenges • Cubesat form factor & design make it even more so • Need ways to quickly track & identify all payloads • Failing to do so jeopardizes mission assurance & safety of flight

  4. Preparing for Success • Operators can drive improvements • Pre-launch/post-deployment state vectors • Share data in advance with JSpOC • Develop independent tracking capability • Two-way ranging • GPS • Simultaneous Doppler tracking • Passive RFID techniques

  5. Methodology • 4 cases involving Planet cubesats examined • 2 prior to/2 following tool development • Looking for key milestones • Time to first TLE • Time to unique identification

  6. ISS Deployments (2016 May 16-Jun 2)

  7. PSLV-C34 Launch (2016 Jun 22)

  8. Tool Development • Assignment/matching process • Based on RMS not closest distance • Standard reporting • Best match to operator data • Best unique match to JSpOC data • Multiple allowable matches to JSpOC data • JSpOC objects having no matches • Tool takes ~1 minute for 88-object case

  9. Tool Validation • Two validation runs • All Planet TLEs against all JSpOC TLEs for Planet • All matches correct—No Type I or Type II errors • Correctly identified RapidEye as having no matches • RMS values of 0.1 to 15.0 km • All Planet TLEs against all ISS-related TLEs • All matches correct—No Type I or Type II errors • Correctly identified non-Planet objects as having no matches • Best results for non-matches had RMS values in the thousands of kilometers

  10. Operational Performance • Results detailed on following slides • PSLV-C37 demonstrated potential • Required confidence building • Found misidentification of INS-1B • KANOPUS-V-IK showed dramatic improvement • Significant delays for non-Planet objects • Still working some identifications due to anomalies

  11. PSLV-C37 Launch (2017 Feb 15), Part 1

  12. PSLV-C37 Launch (2017 Feb 15), Part 2

  13. PSLV-C37 Launch (2017 Feb 15), Part 3

  14. KANOPUS-V-IK Launch (2017 Jul 14), Part 1

  15. KANOPUS-V-IK Launch (2017 Jul 14), Part 2

  16. Conclusions • Significant improvement demonstrated • Having pre-launch vectors can help • Identification requires independent tracking data and willingness to share • Cubesat community needs to enable success • Find/test solutions • Seek ways to make available to all operators • We must do better to support mission assurance & safety of flight

  17. Questions?

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