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ALFOSC permanent set-up

Optical elements which should be available all the time
Note: FASU A & B have no set-up restrictions
FAPOL
Retarder plate:
lambda/2 apart from observing runs
for circular polarization
Aperture wheel, eight slots
Open
Pinhole
Cal_90 (ToO)
1.0 arcsec long slit (ToO)
1.3 arcsec long slit (ToO)
Grism wheel, eight slots
Open
focus pyramid
Grism #4 (ToO)
Grism #6 (ToO)
Grism #7 (ToO)
Grism #16 (ToO)
Filter wheel, eight slots
Open
U#7
B#74
V#75
R#76
i#12

In the tables above, slots without comments are fixed by operational reasons (e.g Pinhole is needed for aligining the grisms).

Permanent ToO set-up for the P3X-(001-199) proposals approved by the NOT OPC.
Visiting astronomers' setups may override the ToO setup in case approved by the OPC (i.e. must be requested in original proposal).

The Spanish CAT and ITP-proposals can modify the "ToO slots".


Back to top Last modified: 31-Jan-2007