The onboard S3dpu processor did a reset, or a warm reboot, for an unknown
reason on 7/8/98. The S3dpu controls and processes data for the SEPICA, SWICS
and SWIMS instruments.

The S3dpu reset put SWICS and SWIMS into standby mode, which is the expected
outcome of an S3dpu startup. The S3dpu briefly reported SEPICA's state as
'standby', then 'off'.

Also at this time, SEPICA's 28v current increased to a level consistent with
an overcurrent shutdown in a low voltage supply. The spacecraft then turned
off the 28 volts to SEPICA via the autonomy shutoff procedure, as it should.
An overcurrent shutdown is caused either by a higher than normal current, or
by setting an overcurrent threshold to zero.

SEPICA was restarted on 7/13/98. SWICS and SWIMS were brought out of standby
mode on 7/16. Instrument recovery is nominal.

A similar s3dpu restart occurred on Sep. 25, 1997. Housekeeping data is
presently under review by the instrument teams.