About ROSAT	ROSAT Home Page	ROSAT Images

The Constraints Form

 

All observations with observing constraints other than those listed in Chapter 7  are considered ``time-critical'' and the Constraints Form must be filled out. Note that your proposal must be rated with the priorities A and B (cf., § 8.2.1 , § 8.3 ) in order to be scheduled; it thus faces additional competition in the proposal selection process and further, the total time available for such constrained observations will not be greater than 5 percent of the total observing time (cf., Chapter 8 ). A Constraints Form has to be filled out for every target to which additional constraints apply.

Four different types of constraints are considered:

• Coordinated observations
• Monitoring observations
• Phase dependent observations
• Contiguous observations

Note that only one type of observing constraint can be selected.

• Coordinated Observations
• Monitoring Observations
• Phase dependent observations
• Contiguous observations