Radiometers For Measurements Of Space Objects

F. L. McNamara; W. E. Krag

doi:10.1117/12.956771

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12 December 1978 Radiometers For Measurements Of Space Objects

F. L. McNamara, W. E. Krag

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Proceedings Volume 0156, Modern Utilization of Infrared Technology IV; (1978) https://doi.org/10.1117/12.956771
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

Abstract

Lincoln Laboratory has developed and is operating a Ground Electro-Optical Deep Space Surveillance (GEODSS) Experimental Test System (ETS) for detecting and measuring the position of artificial satellites'. Based on this work a GEODSS system is being deployed worldwide by TRW under contract to the Air Force. Described is a GaAs single cell radiometer which is based on an operating radiometer at the ETS. The calculated performance of the radiometer is compared with that expected using CCD's and intensified CCD's. The CCD promises improved performance over the GaAs design under bright sky conditions and for faint objects against a dark sky but at the expense of more complexity in data recording and reduction. The intensified CCD improves the performance of the CCD in the proposed system only if the CCD has an electronic readout noise in excess of 30 electrons and then only under dark sky conditions.

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F. L. McNamara and W. E. Krag "Radiometers For Measurements Of Space Objects", Proc. SPIE 0156, Modern Utilization of Infrared Technology IV, (12 December 1978); https://doi.org/10.1117/12.956771

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