Data model: calibMatch

General description: This file contains matches between the objects in a given camcol and the SDSS secondary PT patches, and the PT and 2.5m counts for each object.

Naming convention: calibMatch-RUN6-CAMCOL-.fits

Approximate size: 1 Mbyte.

File type: FITS

Read by products: photoop

Written by products: photoop

Required header keywords: none

Required column names:

• patchnum (int32): secondary patch identification number this object is in
• patchfile (string): file with calibrations of object in patch
• patchmjd (int32): MJD of patch observation
• ptcounts[5] (float32): counts in the PT for this object (ugriz)
• ptinvvar[5] (float32): inverse variance of counts in the PT for this object (ugriz)
• run (int32): run object is in
• rerun (string): rerun object is in
• camcol (int32): camcol object is in
• field (int32): field object is in
• tai[5] (float64): TAI-format time each band was observed in (ugriz)
• airmass[5] (float32): airmass of observation in each band (ugriz)
• id (int32): id of object in field
• mjd (int32): MJD of drift scan
• ra (float64): right ascension, J2000 degrees
• dec (float64): declination, J2000 degrees
• xpos[5] (float32): column of object
• imcounts[5] (float32): 2.5m counts of object in each band (ugriz)
• iminvvar[5] (float32): inverse variance of 2.5m counts of object in each band (ugriz)

Example file: calibMatch-004948-1.fits