Astronomy and Astrophysics – Astronomy
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989tdar.nasa..226e&link_type=abstract
In its The Telecommunications and Data Acquisition Report p 226-234 (SEE N89-27871 22-32)
Astronomy and Astrophysics
Astronomy
Astronomy, Atmospheric Attenuation, Cloud Cover, Daytime, Monitors, Optical Communication, Stars, Visibility, Correlation, Signal To Noise Ratios, Transmitter Receivers
Scientific paper
Techniques for daytime detection of atmospheric transmission and cloud cover to determine the capabilities of future deep-space optical communications links are considered. A modification of the planned nighttime photometry program will provide the best data while minimizing the need for further equipment. Greater degrees of modification will provide increased detection capabilities. Future testing of the equipment will better define the improvement offered by each level of modification. Daytime photometry is favored at certain wavelengths because of higher transmission and lower background noise, thus giving an increased signal-to-noise ratio. A literature search has provided a list of stars brighter than second magnitude at these wavelengths.
Cowles K.
Erickson Darren
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