This document lists the standard slitmasks which are available for use by DEIMOS observers. These include masks for longslit observations and instrument focusing.

Mask Name	Barcode	Description	Status
Focusing Masks
GOH_X (GOH_foo)	grid of pinholes through mask, imaging focus mask	487	active
		2124	spare
		2125	spare
		2126	spare
GOSpH3	grid of spectral holes; spectroscopy focus mask	2127	active
		2128	spare
		2129	spare
GOH_TV	grid of holes not quite drilled through the mask, intended for helping determine TV focus	1926	obsolete; retired
GOSpH3	grid of spectral holes; spectroscopy focus mask	1966	obsolete, retired
GOH_X	grid of pinholes through mask, imaging focus mask	1927	damaged, retired
GOH_foo	grid of pinholes through mask, imaging focus mask	486	damaged, retired
GOSpH	grid of spectral holes; spectroscopy focus mask	1930	retired
GOSpH2	grid of spectral holes; spectroscopy focus mask	1977	retired
Longslit Masks
LVMslits	Multiple slitlets (0.7, 0.8, 1.0, 1.2, 1.5 arcsec widths; all 20 arcsec long) on reflective mask. From left to right as seen on the guider are slits of width 1.5, 1.2, 1.0, 0.8, and 0.7.	4817	active
		4816	spare
LongMirr	0.7 arcsec longslit on reflective mask	1218	active
Long0.7	0.7 arcsec longslit	569	active
		4318	spare
Long0.8	0.8 arcsec longslit	570	active
		4320	spare
Long1.0	1.0 arcsec longslit	571	active
		4310	spare
Long1.2	1.2 arcsec longslit	572	active
		4311	spare
Long1.5	1.5 arcsec longslit	573	active
		4319	spare
LongSlit	1.0 arcsec longslit	1982	retired
LongA	1.0 arcsec longslit	1891	scratched up, retired
Long1.0	1.0 arcsec longslit	488	retired?
LngVrMir	Multiple slitlets (0.7, 0.9, 1.1, 1.5 arcsec widths; all 20 arcsec long) on reflective mask From left to right as seen on the guider are slits of width 1.5, 1.1, 0.9, and 0.7.	1556	retired

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Last modified: Thu Jul 24 12:18:51 HST 2008