タイトル | NGSLR's Measurement of the Retro-Reflector Array Response of Various LEO to GNSS Satellites |
本文(外部サイト) | http://hdl.handle.net/2060/20120015941 |
著者(英) | Clarke, Christopher; Zagwodzki, Thomas; Hovarth, Julie; Degnan, John; Donovan, Howard; McGarry, Jan; Hall, Benjamin |
著者所属(英) | NASA Goddard Space Flight Center |
発行日 | 2012-11-04 |
言語 | eng |
内容記述 | "NASA's Next Generation Satellite Laser Ranging System (NGSLR) has successfully demonstrated daylight and nighttime tracking this year to s atellites from LEO to GNSS orbits, using a 7-8 arcsecond beam divergence, a 43% QE Hamamatsu MCP-PMT with single photon detection, a narrow field of view (11 arcseconds), and a 1 mJ per pulse 2kHz repetition rate laser. We have compared the actual return rates we are getting against the theoretical link calculations, using the known system confi guration parameters, an estimate of the sky transmission using locall y measured visibility, and signal processing to extract the signal from the background noise. We can achieve good agreement between theory and measurement in most passes by using an estimated pOinting error. We will s~.()w the results of this comparison along with our conclusio ns." |
NASA分類 | Space Sciences (General) |
レポートNO | GSFC.ABS.7382.2012 |
権利 | Copyright, Distribution as joint owner in the copyright |
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