The ALFOSC Multi Object Spectroscopy (MOS) Page

General Documentation

An introduction to ALFOSC MOS mode
 

Demo Images

Image of the objects through the MOS mask   (download FITS)
MOS spectrum   (download FITS)
 

Mask design

MOS User Manual for mask design
For MOSPLATE users: link to latest MOS distortion map


How to start the 'mosplate' program
Tips for mask design using the 'mosplate' program


A paper discussing the optimal sky position angle for long exposures
 

At the telescope: User Manual for Target Acquisition

MOS Target Acquisition

mosstrong IRAF task man page
mosmove IRAF task man page
 

Staff documentation

For staff: guidelines for making a new MOS distortion map

Staff MOS-run support: How to mount the masks
Staff MOS-run support: Mounting the calibration lens
 

Old documentation