Space Telescope Science Institute  D1 Aperture Positions for Low FUV Dark Current  2.3 Use of Available-but-unsupported Capabilities

New WEDGEA0.6 Coronagraphic Aperture


A number of aperture locations are defined within the STIS coronagraphic mask that allow different widths of the occulting wedges to be selected for use with CCD imaging observations (see Coronagraphic Imaging-50CORON for further details). A number of observers have found it useful to use a non-standard wedge position that is narrower (about 0.6" wide) than any of the pre-defined locations. This location was added to the supported list as WEDGEA0.6 during Cycle 12.


Table 2.1: The new STIS aperture location names are listed along with existing aperture names.
New Aperture
Existing Aperture
52X0.2E2
52X0.2E1
52X0.5E2
52X0.5E1
52X2E2
52X2E1
25MAMAD1
25MAMA
F25QTZD1
F25QTZ
F25SRF2D1
F25SRF2
52X0.05D1
52X0.05
52X0.1D1
52X0.1
52X0.2D1
52X0.2
52X0.5D1
52X0.5
52X2D1
52X2

D1 Aperture Positions for Low FUV Dark Current  2.3 Use of Available-but-unsupported Capabilities
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