0 votes
asked May 28, 2017 by datalab (2,230 points) | 137 views

1 Answer

0 votes

The PRODTYPE and PROCTYPE keywords are an NOAO convention for defining the type and reduction-level of image data products. PRODTYPE can have one of three values:  'image', 'dqmask' for a data-quality mask, and 'expmap' for an exposure map.  The PROCTYPE refers to the level of data reduction applied to the file and can have the values:  'Raw' for the data as it was obtained at the telescope, 'InstCal' for instrumentally-reduced data, 'Resampled' for a calibrated and reprojected image, 'Stack' for a stack of two or more images, and 'MasterCal' for some form of master calibration (e.g. bias, dome-flat, etc) image.

Additional details are provided in the NOAO Data Handbook (http://ast.noao.edu/sites/default/files/NOAO_DHB_v2.2.pdf).

answered Oct 5, 2017 by datalab (2,230 points)

65 questions

48 answers


11 users

Welcome to Data Lab Help Desk, where you can ask questions and receive answers from other members of the community.