WHT CCD Scales and Orientations
See the individual instrument pages for the most-recent information.
Camera Field "/pixel For sky PA = 0 pixel pixels
" N E Red mic
ISIS red RED+ 240 0.20 left up 13.5 2k*4k
ISIS blue EEV12 240 0.20 up 13.5 2k*4k
LIRIS imaging 256 0.25 up left 18.5 1k*1k
LIRIS spectroscopy 256 0.25 18.5 1k*1k
WYFFOS EEV mosaic up 4k*4k
PF imager EEV mos. 1000 0.24 up right 13.5 4k*4k
ACAM imaging 500 0.25 right up 15 2k*4k
ACAM spectroscopy 500 0.25 15 2k*4k
Aux-port TEK2 110 0.11 left up 22.5 1k*1k
(decomm.) (at sky PA 45)
Aux-port 2 AG2 200 0.4 right? up 13.5 1k*1k
(decomm.) (at sky PA 45)
AO system
---------
Acquisition AG3 200 0.407 left* down* 13.5 1k*1k
MIT3 imaging 38 0.02 up right 15 2k*4k
MIT3 spec 8.5 mm 4 up** right** 15 2k*4k
MIT3 spec 12.5 mm 6 0.0025 " " 15 2k*4k
MIT3 spec 22 mm 10 0.005 " " 15 2k*4k
MIT3 spec 33 mm 17 " " 15 2k*4k
Simplex AG7 18 0.033 down left*** 560*536
INGRID 0.04 up right 18.5 1k*1k
NB with OSCA in the beam, the INGRID field is flipped up-down
WFS foc plane 120
WFS good-see lens 0.26 80*80
WFS poor-see lens 0.52 80*80
WFS doublet 5 0.06? 80*80
If sky PA is increased, the direction N on the detector will rotate away
from the current direction E.
Notes:
* within 0.5 deg
** actually rotated 6 deg from this direction , so that E is 6 deg down
from right, as conventionally viewed
*** on the iraf display. On the simplex gui display, N is up, E is
left,
for sky PA = 0.
The orientations of older instruments are recorded on
a separate page.
Original text 1998 Oct 15, last revised 2010 Sep 21.