6.2 Visit-level Special Requirements
Visit Special Requirements summary
HST has special requirements that are used to specify scheduling constraints at the visit level, and this article contains the descriptions of those requirements.
- 6.2.1 General Visit-level Special Requirements
- 6.2.2 Target Orientation Visit-level Special Requirements
- 6.2.3 Timing Visit-level Special Requirements
Boldface type indicates the name of an APT parameter or a value for a parameter.
Black text indicates an important note.
Magenta text indicates available but unsupported parameters (requires prior approval from STScI).
Red text indicates restricted parameters (for STScI use only).
Brown text indicates text file parameters.
Items in brackets - <value> - are required values.
Items in square brackets - [<value>] - are optional.
More about Visit-level Special Requirements
|Use the table below to go directly to information for a particular visit-level special requirement.|
The following Special Requirements are applicable at the visit level, and they will affect all the exposures within that particular visit.
Supported Formats for Visit-level Special Requirements
1 The <angle in degrees> is currently limited to 25. All other angles from 0º to 90º are Restricted.
Version Cycle 31 June-July 2023
PROPINST-91390 Add "Flexible Thursday" Target of Opportunity
Version Cycle 30 April 2022
PROPINST-91383 Emphasize which special requirements should have been preapproved in Phase I (Added to table)
Version Cycle 29 April 2021
- PROPINST-91379 - VISIBILITY INTERVAL MOVING TARGET