NGSLR's Measurement of the Retro-Reflector Array Response of Various LEO to GNSS Satellites

[摘要] "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 narrowfield of view (11 arcseconds), and a 1 mJ per pulse 2kHz repetitionrate 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 theoryand measurement in most passes by using an estimated pOinting error. We will s~.()w the results of this comparison along with our conclusio ns."

[发布日期] 2012-11-04

[学科分类] 空间科学