Computing average coverage access time to point and area targets by earth observing satellites
Abstract
An algorithm to compute the average amount of time a satellite is in contact with a ground target is described. The algorithm is based on the computation of a 'weighting factor' which represents the probability that the satellite is in contact with the target at a particular time step in the orbit. The average value of the weighting factor taken over the whole orbit is equal to the percentage of time that the satellite and the target are in contact during a typical orbit or day. The algorithm may be used for satellites in either circular or elliptical orbits, against targets that are either points or areas.
 Publication:

Astrodynamics 1987
 Pub Date:
 1988
 Bibcode:
 1988asdy.conf..436H
 Keywords:

 Earth Observing System (Eos);
 Orbit Calculation;
 Remote Sensors;
 Satellite Orbits;
 Access Time;
 Ground Stations;
 Probability Theory;
 Swath Width;
 Space Communications, Spacecraft Communications, Command and Tracking