Archives of Photographic PLates for Astronomical USE

Photometric calibration: color term estimation (applause_dr3.phot_cterm)

The table has 7512406 rows, 12 columns.


Fitting parameters for photometric calibration.The color term of a photographic plate was determined by fitting a photometric calibration curve with a range of trial color term values. Each fit leaves magnitude residuals. This table contains standard deviations of residuals for each fit. Unique Identifier cterm_id


If you have made substantial use of the data provided by APPLAUSE DR3, kindly include this acknowledgement

Funding for APPLAUSE has been provided by DFG (German Research Foundation, Grant), Leibniz Institute for Astrophysics Potsdam (AIP), Dr. Remeis Sternwarte Bamberg (University Nürnberg/Erlangen), the Hamburger Sternwarte (University of Hamburg) and Tartu Observatory. Plate material also has been made available from Thüringer Landessternwarte Tautenburg.


Name Type UCD Unit Description
cterm_id int

Unique identification number of the trial color term

process_id int

Process identification number

scan_id int

Scan identification number

exposure_id int

Exposure identification number

plate_id int

Plate identification number

archive_id int

Archive identification number

iteration int meta.record

Iteration number

cterm float

Trial color term for fitting the photometric calibration curve

stdev float

Standard deviation of magnitude residuals after photometric calibration with a trial color term value

num_stars int meta.number

Number of stars that were used for the RMS error estimation

timestamp_insert char time.creation Time[yyyy-mm-dd hh:mm:ss]

Timestamp of insert

timestamp_update char time.creation Time[yyyy-mm-dd hh:mm:ss]

Timestamp of last update