Space Telescope Science Institute
Cycle 19 Phase II Proposal Instructions
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HST Phase II Proposal Instructions for Cycle 19 > Chapter 5: Visits, Exposures and Exposure Groups > 5.16 Optional Parameters [Optional_Parameters]
5.16 Optional Parameters [Optional_Parameters]
The Operating Modes of the instruments frequently have parameters that may be adjusted. The default parameter values that have been defined for the various Instrument Configurations and Operating Modes can be overridden by entries in the Optional Parameters form. See the instrument chapters in this document and the Instrument Handbooks for descriptions of the Optional Parameters.
If no values are changed in the Optional Parameters form, default values will be used.
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If you use more than one Optional Parameter, they must be separated by commas (e.g., BINAXIS1=1, BINAXIS2=1).
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