Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 14
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| Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 14 | |||||
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2.8 STIS Snapshot Policies
Both imaging and spectroscopic
STIS/MAMAsnapshots are allowed, but the combined total ofSTIS/MAMAsnapshot targets accepted in Cycle 14 will not exceed 300, with imaging targets limited to a total of 100, due to the target and field bright-object checking requirements. Moving targets are not permitted forSTIS/MAMAsnapshot visits. VariableSTIS/MAMAsnapshot targets must have well defined maximum UV fluxes, which will be used for the bright-object checking. There are no restrictions on the numbers or variability of proposedSTIS/CCDsnapshot targets, as they do not require bright-object checking and have a significantly higher expected completion rate. Thus, use of theSTIS/CCDG230LBorG230MBgratings is encouraged as an alternative to the NUV MAMA.In addition,
STIS/MAMAsnapshot proposals should be limited to one or a few straightforward configurations. Specifically, use of theF25NDQfilters will not be allowed in MAMA snapshot proposals. Use of the0.2X0.2echelle aperture is recommended for first-order programs without a scientific need for a long-slit in order to expedite the field bright object screening process; these configurations will be supported as of Cycle 14. Because of the limited resources available for bright-object checking combined with the relatively low expected completion rate, excessively complexSTIS/MAMAsnapshot targets, fields, or instrumental configurations may not be implemented in Phase II. If you are in doubt on this issue, you may consult with a member of the Spectrographs Group via theHelp Desk.
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Space Telescope Science Institute http://www.stsci.edu Voice: (410) 338-1082 help@stsci.edu |