GHRS Instrument Science Report No. 84 "Implementation of a Background Count Rate Model for the GHRS" M. D. De La Pena, D. R. Soderblom May 22, 1997 Abstract This document describes the implementation and usage of a background count rate model for the GHRS detectors.The model uses geomagnetic longitude and latitude to predict the background count rate at the time of observation. The calculation uses a mean relation determined for the FOS, scaled appropriately for Sides 1 and 2 of the GHRS.
