Examples

Telescope and/or SI Performance Problem:

        - loss of lock

        - target acquisition failure

Scheduling Error Resulting in Scientific Requirements Not Being Met:

        - Missing Exposures

        - Non-Int

Proposal Error:

        - Target Coordinates

        - Count rates too low

        - Faint/Bright Limits for Onboard Acquisition Observations

Note: Observations are generally not repeated for proposal errors except in special circumstances.