We describe multi-baseline observations of a geostationary satellite using the Navy Precision Optical Interferometer (NPOI) during the glint season of March 2015. We succeeded in detecting DirecTV-7S with an interferometer baseline length of 8.8 m on two nights, with a brief simultaneous detection at 9.8 m baseline length on the second night. These baseline lengths correspond to a resolution of 4 m at geostationary altitude. This is the first multiple-baseline interferometric detection of a satellite.
Using Optical Interferometry for GEO Satellites Imaging: An Update
2016
9 pages
Report
No indication
English
Infrared & Ultraviolet Detection , Optics & Lasers , Unmanned Spacecraft , Optical interferometers , Synchronous satellites , Apertures , Arrays , Naval equipment , Optical detection , Perturbations , Photometry , Precision , Situational awareness , Space environments , Geostationary satellites , Optical interferometry , Imaging , Telescope arrays , Npoi(navy precision optical interferometer)
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