coordinates for the Shane PFCam dewar
as a PDF file
This diagram is a synthesis of the contents of what should be
several separate diagrams and documents.
For reference see the
manufacturer data sheet
for the CCD with the nomenclature of the amplifiers.
The guide camera for PFCam sees the sky to the north of the sky that
the science CCD sees. In this diagram the guider is off the page to
At the Shane prime focus the dewar for PFCam is mounted
on the north side of the cage. In this diagram the dewar is
off the page to the right.
coordinates for the Shane PFCam guider
as a PDF file
The scale of the guider is about 0.28 arcsec/pixel.
The guider FOV is about 114 arcsec EW * 98 arcsec NS.
The rotation is such that the
+x axis of the CCD points about E 3.6 deg N
+y axis of the CCD points about N 3.6 deg E
This is a draft. It all deserves double checking.
Please let me know if you find anything that seems awry.
The engineering diagram documenting the PFCam focal plane
should not include
the device name of the CCD
the designations of the video inputs
the designations of the amplifier types
the PANE coordinates
The FITS coordinates can be redefined, but the current
coordinates indicate the manner in which the ucam
code writes the pixels into the FITS image array.
Steve Allen <email@example.com>
Initial deployment 2011-02-22T16:35
$Date: 2012/05/31 17:22:31 $