4.5.1 Operational overheads
XMM-Newton operational overheads are:
- Slew time to move to the target coordinates: variable, depending
on the relative target position with respect to the starting
spacecraft attitude; the XMM-Newton slew rate is 90/hour.
- AOCS reference star acquisition time and fine trim to the actual
target position after a slew - about half an hour per observation.
Operational overheads do not need to be taken into account in XMM-Newton
European Space Agency - XMM-Newton Science Operations Centre