BRIGHT_POINT_SOURCE

Reduces a bright-point-source photometry observation

Description:

This recipe reduces a “bright standard” photometry observation. It takes an imaging observation comprising a series of jittered object frames and a dark frame, and a predetermined flat-field frame to make a calibrated, trimmed mosaic automatically.

This recipe performs bad-pixel masking, null debiassing, dark subtraction, flat-field division, feature detection and matching between object frames, and resampling. See the “Notes” for details.

As the name implies, it is intended for bright point sources, such as standard stars, but also any observation where using its own frames to make the flat is not appropriate.

Notes:

Output Data

Parameters:

NUMBER = INTEGER
The number of frames in the jitter pattern. If this is not set, the number of offsets, as given by FITS header NOFFSETS, minus one is used. If neither is available, 5 is the default. An error state arises if the number of jittered frames is fewer than 3. For observations prior to the availability of full ORAC, header NOFFSETS will be absent. []
USEVAR = LOGICAL
Whether or not to create and propagate variance arrays. [0]

Related Recipes

BRIGHT_POINT_SOURCE_APHOT, JITTER_SELF_FLAT, SKY_FLAT,
SKY_FLAT_MASKED.

Implementation Status: