H Release Notes—V4.0

 H.1 New recipes
 H.2 Modified recipes
 H.3 Global changes

The main changes are the addition of support for UIST, ISAAC, and INGRID instruments.

H.1 New recipes

DARK_AND_BPM
The design of the data-handling system means a traditional ARRAY_TESTS is not possible for UIST. Thus there are two recipes to perform the equivalent steps for darks not in the same observation group. This recipe uses a long-exposure DARK frame to locate bad pixels, then creates and files a bad-pixel mask. It then measures and reports the dark current from a long-exposure DARK frame. If this recipe is run at UKIRT, the dark current is stored in an engineering log file.
MAKE_BPM
Creates and files a bad-pixel mask from a long-exposure dark by thresholding +/ 5 clipped standard deviations about the clipped mean.
MEASURE_READNOISE
This is the second UIST-specific recipe replacing ARRAY_TESTS. This recipe measures the readnoise for a group of UIST DARK frames and files that measurement with the calibration system. If this recipe is run in a UKIRT environment it will create or append to a log file located at /ukirt_sw/logs/uist_array_tests.log.
NOD_SKY_FLAT_THERMAL
This is like NOD_SELF_FLAT_NO_MASK, but it expects that the nod throws alternate to sky. The sky frames alone make the flat.

H.2 Modified recipes

H.3 Global changes

The main changes from a user perspective were as follows.

The main changes from a programmer perspective were as follows.