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information_for_astronomers:rx:p3mm
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information_for_astronomers:rx:p3mm [2020/11/05 15:35] akraus |
information_for_astronomers:rx:p3mm [2023/05/04 15:16] (current) ubach [3mm primary focus receiver (84000-95500 MHz)] |
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| observatory is located at rather low elevation and the weather conditions are not ideal for mm-observations. | observatory is located at rather low elevation and the weather conditions are not ideal for mm-observations. | ||
| - | Since some years there exists a NASA satellite that operates a radar at 90 GHz. The radar is called CloudSat and is powerful enough too not only produce RFI, but it can also destroy the receiver when passing inside the beam. Please check the [[http://cloudsat.atmos.colostate.edu/home/|CloudSat homepage]] when planning 3mm observations. The CloudSat page also provides a forecast for satellite passages at specific radio observatories: [[https://angler.larc.nasa.gov/cgi-bin/cloudsat/closest.cgi?sat=CLOUDSAT&elevangle=10.0&dist=ALL&fname=_SUBSAT_08SEC.TXT&lat=50.5256&lon=6.8833&sitename=Effelsberg_Germany|here for Effelsberg.]] | + | Since some years there exists a NASA satellite that operates a radar at 90 GHz. The radar is called CloudSat and is powerful enough too not only produce RFI, but it can also destroy the receiver when passing inside the beam. Please check the [[http://cloudsat.atmos.colostate.edu/home/|CloudSat homepage]] when planning 3mm observations. The CloudSat page also provides a forecast for satellite passages at specific radio observatories: [[https://angler.larc.nasa.gov/cgi-bin/site/showdoc?docid=239&sat=CLOUDSAT&elevangle=10.0&dist=ALL&fname=_SUBSAT_08SEC.TXT&lat=50.5256&lon=6.8833&sitename=Effelsberg_Germany|here for Effelsberg.]] |
| ==== Calibration Information ==== | ==== Calibration Information ==== | ||
information_for_astronomers/rx/p3mm.txt ยท Last modified: 2023/05/04 15:16 by ubach
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