PredictSolar.txt

SOLAR ILLUMINATION PREDICTIONS
       Selecting [S] from PREDICT's main menu  will  allow  solar
       illumination  predictions  to  be made.  These predictions
       indicate how much sunlight  a  particular  satellite  will
       receive  in  a  24 hour period.  This information is espe-
       cially valuable  to  spacecraft  designers  and  satellite
       groundstation  controllers  who  must  monitor  spacecraft
       power budgets or thermal conditions on-board their  space-
       craft due to sunlight and eclipse periods.  It can even be
       used to predict the optimum times for astronauts  to  per-
       form  extra-vehicular activities in space. Solar illumina-
       tion predictions may be logged to a file in the same  man-
       ner  that  orbital  predictions may be logged (by pressing
       L).