OSIS User's Manual

This manual describes the present status of OSIS and observing procedures for using it efficiently. OSIS (the Optionally Stabilized Imager and Spectrometer) provides high spatial resolution for both imaging and multi-slit spectroscopy in Visible and Infra-Red up to 2µm, over a 3'x3' field. OSIS Home Page

CHAPTER 1: Introduction

MOS / SIS
From SIS to OSIS
OSIS
OSIS-IR
LAMA

CHAPTER 2: OSIS optical and mechanical layout

Introduction
Optical layout
Optical performances
Mechanics details

CHAPTER 3: OSIS active guiding

Introduction
Principle
Tip/tilt mirror and APD
Performances

CHAPTER 4: OSIS environment

Mask slides
Filters
Grisms
OSIS detectors
Calibration lamps
LAser MAchine (LAMA)

CHAPTER 5: OSIS control and data acquisition with Pegasus

Checking the status of the instrument and starting observations
CAF window: Computer Aided Focussing
OFFSET and OSIS-Offset windows: accurate offsetting
RASTER and EXPOSE windows: gathering photons
LAMPS window: calibration unit control
IMAGE and GRAPH windows: looking at the data
FILES window: handling data files

CHAPTER 6: 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
Focussing
Offsetting
Guiding
Imaging exposures
Spectroscopy exposures
Aperture mask preparation
Aperture mask installation
Calibration
Data evaluation

CHAPTER 7: Data reduction procedures

Direct imaging
Spectroscopy
The MULTIRED package

CHAPTER 8: OSIS performance

Imaging
Spectroscopy

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.