Quick-look data may be required by the ST ScI for either operational or informational purposes. Operational requirements for quick-look data can include calculation of reuse target offsets for revisits to a target, SI anomaly investigation, and SI focus evaluation.
Informational purposes can include special campaigns and science verification assessment.
Scheduled real-time data for which there is an operational requirement, such as input to an interactive target acquisition, are regarded as critical. For these critical data a quick-look backup will be requested to provide for recovery in event of a failure of the communications links or of the OPUS system. The times in this schedule report may have inaccuracies of up to several minutes, but this disadvantage is outweighed by both OPUS and SDPF having access to the same report. Both SDPF and OPUS will have TDRS service schedules provided by HST Mission Operations. OPUS will have provided the SDPF with schedules for the desired HST observations via OIP 2.1.1.