|Space Telescope Science Institute|
|HST CP and Primer for Cycle 23|
10.5 In Phase I STScI does not perform technical reviews for the majority of the submitted proposals. In Phase II a technical/feasibility review is performed and special attention is given to observations/modes that may damage the instrument, are particularly complex, are recent/experimental, are human- and technical resource-intensive, or require the use of limited resources (such as ToO Programs). All technically challenging or infeasible observations are flagged. It is the responsibility of the PI to ensure that none of the observations violate bright-object constraints (see Section 5.1 of the HST Primer).