SOHO Recovery Updates

The thermal status of both the service and payload modules of the spacecraft is now nominal.

Receiver 1 was locked twice using the low gain antenna, 18 KW uplink power with a 26m DSN antenna, and wide frequency sweeps.

A star map was collected and dumped using the star sensor unit 1 (SSU1). FDF reports that SSU1 behaviour is nominal. The absolute roll attitude was determined to be 50.84 degrees.

SOHO is now in medium rate telemetry, using the high gain antenna (HGA), receiver 2 and transmitter 1. The signal level at DSS24 was -116 dBm, which indicates good HGA pointing.

Overnight, the tape recorder was set on record during 3 hours, and the data collected were dumped afterwards. The analysis of the dump shows good statistics. The same was done with the solid state recorder, but the analysis of the dump is still under way.

The procedures for a station keeping maneuver have been prepared and verified.