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Contents
Addendum to the LWS Observers Manual
N.R.Trams, P.E.Clegg and B.M.Swinyard
Version 1.0
SAI/96-166/Dc
5 August 1996
Postscript version
Contents
List of Tables
List of Figures
Introduction
Description of the Instrument
How the instrument works
Extended mode of Operations (3.3, page 7).
Overview of modes of operation
Rapid scanning (4.4, page 9).
Performance of the instrument
Measured Performance (5.3, page 11)
Transmission Efficiency (5.3.1., page 11)
Spectral resolution (5.3.2., page 12)
Photometric Sensitivity (5.3.3, page 12)
Detector ramps
Beam Width
Fringing
Cookery Book
Recommendations for LWS Observers
Beam Width
Deglitching
Fringing
Overheads
Sensitivities in Medium Resolution mode
Sensitivity in High Resolution mode
The possible ramp lengths
The maximum Signal to Noise per ramp
How to estimate observing times
Calculation of S/N per ramp
Calculation of number of ramps
Calculation of the required integration time
Calculation of the number of points in the scan
Calculation of the required integration time for the observation
Calculation of the TDT
Worked examples
Grating line scan
FP line scan
N.R. Trams, P.E. Clegg and B.M. Swinyard
Wed Aug 7 11:47:53 MET DST 1996
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