Sun Outage Visualizer Simulator for Geostationary Satellites
Updated 06 March 2018
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More calculators at https://www.satellite-calculations.com- Jens T. Sætre
If it is only required to do predictions then it is faster to use the
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CkuUser Band(GHz)
Antenna Size(Meters)Antenna Size(Feet)Antenna Size(Inches)Antenna Efficiency
SeasonSpringFall Year(YYYY) Antenna Noise Temp°K Waveguide/feed lossdB LNB Noise Temp°K LNB Noise FiguredB System Noise Temperature°K Polarization:CircularLinear C/N loss exceeds:dB(tip: use link margin) Plot all affected satellites Plot selected satellites Alternative plotSpacing:degrees Plot all with filterLongitude filter:degrees Inclination filter:degrees Satlon drift filter:degrees Map follows Sun longitude and peak outage latitude Dynamic update satellite list Turn on 1dB contours in outage area: Sun outage predictions based on:Antenna 3dB beam widthC/N degradation Date:
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Green outline in outage footprint marks the 3dB beamwidth or the C/N link margin if Sun outage predictions is based on C/N degradation
NOTE:Inclination not accounted for in text predictions
Inclination accounted for when drawing affected area (based on 10min updates of inclination)
C/N calculations from ITU-R S.1525-1 & ITU-R BO.1506 simplified model
Be aware that the C/N calculations does not match ITU-R S.1525-1 & ITU-R BO.1506 100% with current implementation.
Also the radiation intensity from the Sun can be different from the average value used in the ITU papers
C/N reduction is less accurate for Ku antennas above 1.8m
ITU-R BO.1213 and ITU-R BO.1900 is used as reference antanna patterns. This patterns does not apply for C-band but due to the lack of C-band reference pattern the ITU-R BO.1213 is also used as pattern for C-band.
Inclination accounted for when drawing affected area (based on 10min updates of inclination)
C/N calculations from ITU-R S.1525-1 & ITU-R BO.1506 simplified model
Be aware that the C/N calculations does not match ITU-R S.1525-1 & ITU-R BO.1506 100% with current implementation.
Also the radiation intensity from the Sun can be different from the average value used in the ITU papers
C/N reduction is less accurate for Ku antennas above 1.8m
ITU-R BO.1213 and ITU-R BO.1900 is used as reference antanna patterns. This patterns does not apply for C-band but due to the lack of C-band reference pattern the ITU-R BO.1213 is also used as pattern for C-band.
NB ! Local time is based on computer local time zone and daylight savings settings