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GLOSSARY
UTC Universal Time Coordinated. This is the international reference time.
MET "Mission Elapsed Time". This is the elapsed time from the start of the mission dened
on one of the time scales , or . In the case of a space ight, it is the
precise moment of rocket take-off.
PET "Phase Elapsed Time". This is the time remaining until an event (negative), or the
elapsed time since this event (positive), dened as per , , or .
TROUBLESHOOTING
The hands do not show the same time as the display:
• The hands are out of synch. See the synchronisation procedure on page 26.26..
The seconds hand makes 5-second jumps:
• The battery is at the end of its service life (the battery must be replaced by an authorised OMEGA
®
dealer).
After programming MET or PET, the countdown remains at 0:
• The date programmed would mean a countdown in excess of 999 days, 23 hours, 59 minutes
and 59 seconds.