An Error Analysis for the Measurement of Satellite EIRP Using a Calibrated Radio Star

An outline for the derivation of equations employed in a measurement and error analysis of satellite EIRP using a calibrated radio star is presented. A table showing analysis results at 7.55 GHz using Cassiopeia A for a satellite at 120 elevation angle is given. The quadrature sum of the systematic errors appearing in the table is 10.1 percent. Also presented is a curve of the systematic errors as a function of elevation angle showing a 7.3-percent minimum at high elevation angles.