Shane Cassegrain guider Andor coordinates

This is a draft.
Scale and orientation seem right for Andor conventional amplifier readout.

FITS file coordinates for the Andor Shane Cassegrain guider
using the diagonal (mirror position 2)

as a PDF file
image scale is 0.316 arcsec/pixel
detector pixels are 13um*13um
FITS file coordinates for the Andor Shane Cassegrain slitjaw guider
using the periscope (mirror position 4)

as a PDF file
image scale is 0.184 arcsec/pixel
detector pixels are 13um*13um
Andor iXon Ultra EMCCD camera specifications
Teledyne e2v CCD201-20 EMCCD BI device specifications
Andor technical note about protecting the EMCCD
Andor performance sheet for 2020 Shane Cassegrain guide camera
These diagrams are a synthesis of the contents of what should be several separate diagrams and documents.
The engineering diagrams documenting the guider focal planes should not include
This is a draft. It all deserves double checking.
Please let me know if you find anything that seems awry.

The FITS coordinates can be redefined, but the current coordinates indicate the manner in which the Andor code writes the pixels into the FITS image array.
Steve Allen <sla@ucolick.org>
Initial deployment 2019-12-18T00:00
$Id: cassguideandor.html,v 1.9 2020/10/20 18:15:25 sla Exp $