Chapter 2:
Special Considerations
for Cycle 13

In this chapter. . .

CTE Effects and the E1 Aperture Positions New STIS Aperture Locations Use of Available-but-unsupported Capabilities Scheduling Efficiency and Visit Orbit Limits MAMA Scheduling Policies Prime and Parallel Observing: MAMA Bright Object Constraints Phase 1 and Phase 2 Proposal Tools STIS Snapshot Policies

STIS has been in orbit since 1997 and has been operating superbly, returning a multitude of new and unique scientific results. We have learned a significant amount about the instrument and its operation since installation, and all calibrations are either based on or consistent with data obtained in flight. We list below the STIS-specific policy items needing consideration for STIS Cycle 13 proposals.