Archives of Photographic PLates for Astronomical USE

Photometric calibration: color term results (applause_dr3.phot_color)

Description

Color term of a photographic plate was determined by fitting a photometric calibration curve with a range of trial color term values. The lowest standard deviation of residuals corresponds to the color term of the plate. This table contains data on the determined color terms. Each row in the table corresponds to a scan of a photographic plate. Unique Identifier color_id

Attribution

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.

Columns

Name Type UCD Unit Description
color_id int meta.id
meta.main
Unique identification number of the color term
process_id int meta.id Process identification number
scan_id int meta.id Scan identification number
exposure_id int meta.id Exposure identification number
plate_id int meta.id Plate identification number
archive_id int meta.id Archive identification number
color_term float stat.fit.param Color term of the plate, characterizing color response of the emulsion and filter used
color_term_err float stat.error
stat.fit.param
Error on color term of the plate
stdev_fit float stat.stdev
phot.mag
em.opt
mag Fitted minimum standard deviation of magnitude residuals for a range of trial color terms
stdev_min float stat.stdev
phot.mag
em.opt
mag Minimum standard deviation of magnitude residuals for a range of trial color terms
cterm_min float stat.param Minimum trial color term that was used for the final color term estimation
cterm_max float stat.param Maximum trial color term that was used for the final color term estimation
iteration short meta.record Iteration number
num_stars int meta.number Number of stars that were used for the RMS error estimation
timestamp_insert timestamp time.creation Time[yyyy-mm-dd hh:mm:ss] Timestamp of insert
timestamp_update timestamp time.creation Time[yyyy-mm-dd hh:mm:ss] Timestamp of last update