9.3 Special Requirements

(This item is required only for GO and SNAP proposals)

List and justify any special scheduling requirements, including requests for:

• Target of Opportunity (TOO) observations. For TOO observations, estimate the probability of occurrence during Cycle 16, and state how soon HST must begin observing after the occurrence (see Section 4.1.2).
• CVZ observations (see Section 4.1.1).
• Time-critical observations (see Section 4.1.6).
• Early acquisition observations (see Section 5.2.1 of the HST Primer).
• Coordinated Parallel (CPAR) or Pure Parallel (PPAR) observations
• Target acquisitions that use the 'Re-use target offset' function (see Section 5.2.2 of the HST Primer).
• Real-time interactions (see Section 4.1.7, and Section 2.6.1 of the HST Primer).
• Requests for expedited data access (see Section 7.2 of the HST Primer).
• Other special scheduling requirements (e.g., requests for non-SAA impacted observations).

Also, if applicable, discuss the benefits of or need for a non-default proprietary period request (see Section 5.1 and Section 8.7).