WFPC2 Technical Instrument Report 98-04:

Proposed Modification to the WFPC2 SAA Avoidance Contour

-Biretta and Baggett

We have examined cosmic ray rates taken inside and around the South Atlantic Anomaly (SAA). Based on those results, we propose a new, slightly smaller WFPC2 SAA avoidance region. The new SAA contour should help improve HST scheduling efficiency with minimum impact to WFPC2 observations.

The Complete Paper (PDF 0.27 MB) is available or contact: help@stsci.edu.