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Procedure: Generate Reference Centroids
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Introduction
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Prerequisites
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Execution
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Example
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Modifications
Introdution:
Create a file containing reference centroids tuned to the current seeing.
Prerequisites:
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Initial reference centroid file generated from image sharpening on
fibre source (typically generated during afternoon optimization),
corresponding to appropriate centering algorithm (e.g. BINQUAD / COG / QUAD).
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Knowledge of ambient seeing conditions (e.g. 1.8 arcsec) determined
from guide camera.
Execution:
All supported modes:
user@real.ucolick.org:/u/gavel/data > genSkyRefcentsAll <seeing>
e.g.
user@real.ucolick.org:/u/gavel/data > genSkyRefcentsAll <1.3>
Thi script looks for the most recent refcents for each mode (8x and 16x, cog, binquad, and quad). If a saved setup is not using the most recent refcent file, it is necessary to process that one individually with the original command, genSkyRefcents.
Individual modes:
user@real.ucolick.org:/u/gavel/data > genSkyRefcents <mode> hs-20XX-XX-XX-BINQUAD_XXxLGS.fits <seeing>
Where mode can be either 16x or 8x and seeing is the estimated prevailing seeing in units of arcseconds.
Output is written to a (current) date-stamped file with the string _onSky inserted.
If a value for <seeing> is not specified, default value of 1.0 is adopted.
Example:
user@real.ucolick.org:/u/gavel/data > genSkyRefcents 16x hs-2014-11-05-BINQUAD_16xLGS.fits 1.8
Yields the file:
user@real.ucolick.org:/u/gavel/data/hs-2014-11-05-BINQUAD_16xLGS_onSky.fits
Modifications:
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2021-12-20:
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Updated.
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2021-09-21:
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Updated.
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2014-12-09:
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Script migrated gavel -> user.
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2014-11-05:
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First version.
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