MOS User's Manual

This manual describes the present status of MOS and observing procedures for using it efficiently. MOS (the Multi-Object Spectrograph) provides imaging and multi-slit spectroscopy capabilities from 3500Å to just beyone 9000Å, over a 10´ x 10´ field of view. MOS Home Page

CHAPTER 1: Introduction

MOS / SIS
References

CHAPTER 2: MOS optical and mechanical layout

General
Optical layout
Optical performances
Mechanics

CHAPTER 3: The MOS Environment

Mask Slides
Filters
Grisms
CCD detectors
Calibration lamps
LAser MAchine (LAMA)

CHAPTER 4: MOS control and data acquisition with Pegasus

Checking the status of MOS
the MOS window
CAF window: Computer Aided Focussing
OFFSET window: accurate offsetting
RASTER and EXPOSE windows: gathering photons
LAMPS window: calibration unit control
The Cal-SEQ Window: Automatic Calibration Sequence
IMAGE and GRAPH windows: looking at the data
FILES window: handling data files

CHAPTER 5: MOS Observing procedures

Overview
Recipe 1: Summary of steps for direct imaging
Recipe 2: Summary of steps for long slit or multi-slit spectroscopy
Cassegrain bonnette rotation
Field acquisition and centering
Focusing
Offsetting
Guiding
Imaging exposures
Spectroscopy exposures
Aperture mask preparation
Aperture mask installation
Calibration

CHAPTER 6: MOS Data reduction procedures

Direct imaging
Spectroscopy
The MULTIRED package

CHAPTER 7: MOS performance

Imaging
Spectroscopy

CHAPTER 8: Instrument Set-Up (Staff Only)

Spectrograph Alignment
Spectrograph Focusing
CAF Set-Up
OFFSET Set-Up
Checking LAMA

Contributors to this manual include: D. Bohlender, J. Bouvier, J.G. Cuby, O. LeFevre, E. Magnier, C. Vanderriest, and C. Veillet.
Send comments to: eugene@cfht.hawaii.edu
Copyright © 1997, CFHT Corporation. All rights reserved.