3D position and velocity vector computations of objects jettisoned from the international space station using close-range photogrammetry approach

Valeri Papanyan; Edward Oshel; Daniel Adamo

doi:10.1117/12.773347

22 April 2008 3D position and velocity vector computations of objects jettisoned from the international space station using close-range photogrammetry approach

Valeri Papanyan, Edward Oshel, Daniel Adamo

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Proceedings Volume 6958, Sensors and Systems for Space Applications II; 69580H (2008) https://doi.org/10.1117/12.773347
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

Measurement of the jettisoned object departure trajectory and velocity vector in the International Space Station (ISS) reference frame is vitally important for prompt evaluation of the object's imminent orbit. We report on the first successful application of photogrammetric analysis of the ISS imagery for the prompt computation of the jettisoned object's position and velocity vectors. As post-EVA analyses examples, we present the Floating Potential Probe (FPP) and the Russian "Orlan" Space Suit jettisons, as well as the near-real-time (provided in several hours after the separation) computations of the Video Stanchion Support Assembly Flight Support Assembly (VSSA-FSA) and Early Ammonia Servicer (EAS) jettisons during the US astronauts space-walk. Standard close-range photogrammetry analysis was used during this EVA to analyze two on-board camera image sequences down-linked from the ISS. In this approach the ISS camera orientations were computed from known coordinates of several reference points on the ISS hardware. Then the position of the jettisoned object for each time-frame was computed from its image in each frame of the video-clips. In another, "quick-look" approach used in near-real time, orientation of the cameras was computed from their position (from the ISS CAD model) and operational data (pan and tilt) then location of the jettisoned object was calculated only for several frames of the two synchronized movies.

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Valeri Papanyan, Edward Oshel, and Daniel Adamo "3D position and velocity vector computations of objects jettisoned from the international space station using close-range photogrammetry approach", Proc. SPIE 6958, Sensors and Systems for Space Applications II, 69580H (22 April 2008); https://doi.org/10.1117/12.773347

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KEYWORDS

Cameras

Photogrammetry

Image analysis

Safety

Velocity measurements

Imaging systems

Space operations

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