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ISAAC

The observation template and sequence names are converted into matching recipes with a default of QUICK_LOOK. Available are: CHOP_SKY_JITTER, JITTER_SELF_FLAT, JITTER_SELF_FLAT_APHOT, NOD_SELF_FLAT_NO_MASK, NOD_SELF_FLAT_NO_MASK_APHOT, POL_JITTER, REDUCE_DARK, and SKY_FLAT_MASKED. Please note that at the time of writing the thermal recipes have yet to be tested with ISAAC data. Polarimetry is not available yet. Other recipes supplied on the oracdr command line should work provided the observation pattern matches that expected by the recipe.

The CHOP_SKY_JITTER recipe has no leading sky frame, so the recipe subtracts the mode of the first sky frame from the first target frame, rather than interpolating between the bracketting sky frames as occurs in the standard version. The sequence of frames can also end on the source.

The spatial distortion correction in the core jitter recipes uses the ATOOLS package in addition to those engines listed in the generic documentation.

Aperture photometry accesses both the UKIRT Faint-standard and Persson HST lists.



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ORAC-DR -- imaging data reduction
Starlink User Note 232
Malcolm J. Currie
Brad Cavanagh
Joint Astronomy Centre, Hilo, Hawaii
2004 June
E-mail:ussc@star.rl.ac.uk

Copyright © 2004 Particle Physics and Astronomy Research Council