4 September 2015 Multiple-baseline detection of a geostationary satellite with the Navy Precision Optical Interferometer
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Abstract
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.
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J. Thomas Armstrong, J. Thomas Armstrong, Ellyn K. Baines, Ellyn K. Baines, Henrique R. Schmitt, Henrique R. Schmitt, Sergio R. Restaino, Sergio R. Restaino, James H. Clark, James H. Clark, James A. Benson, James A. Benson, Donald J. Hutter, Donald J. Hutter, Robert T. Zavala, Robert T. Zavala, } "Multiple-baseline detection of a geostationary satellite with the Navy Precision Optical Interferometer", Proc. SPIE 9617, Unconventional Imaging and Wavefront Sensing 2015, 961709 (4 September 2015); doi: 10.1117/12.2194156; https://doi.org/10.1117/12.2194156
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