Telemetry we have received from ISEE-3 shows that it is spinning at 19.16 rpm. The mission specification is 19.75 +/- 0.2 rpm. We have also learned that the spacecraft’s attitude relative to the ecliptic is 90.71 degrees – the specification is 90 +/- 1.5 degrees. In addition, we are now receiving information from the spacecraft’s magnetometer.
ISEE-3 Experiment Summary (summaries of all the spacecraft’s instuments)