Speakers
Description
The newest version of NASA’s Orbital Debris Engineering Model, ORDEM 3.1, incorporates the latest and highest fidelity datasets available to build and validate representative orbital debris populations encompassing low Earth orbit (LEO) to geosynchronous orbit (GEO) altitudes for the years 2016-2050. Observational datasets used for building model populations include those from the U.S. Space Surveillance Network (SSN) catalog (sizes down to ~10 cm in LEO and ~1 m in GEO), the Haystack Ultrawideband Satellite Imaging Radar (HUSIR; sizes down to ~5 mm in LEO), the Michigan Orbital Debris Survey Telescope (MODEST; sizes down to ~30 cm in GEO), and returned surface data from the U.S. Space Transportation System orbiter vehicle (Space Shuttle) radiators (sizes between ~100 microns and ~1 mm) and windows (sizes between ~10 microns and ~100 microns). This presentation will discuss the new data and new data analyses used to build the ORDEM 3.1 model populations and sample results of validation against separate datasets from HUSIR, the Goldstone Solar System Radar, returned surfaces from the Hubble Space Telescope, and MODEST.
