Photometric Functions

Functions

int omega_basic_param (cpl_table *sources, double scale, double *seeing, double *ellipticity)
 Routine to calculate the seeing from stars.
cpl_table * omega_photom_tbl (const char *star, double gain, const cpl_frame *refcat, cpl_parameterlist *pars, cpl_table **extra)
 Match std stars with std reference catalogue and calculate zero point for matched stars.
cpl_table * omega_zeropoints (cpl_table *matches, cpl_table *extra, const cpl_frame *monitfr, const cpl_frame *extfr, const cpl_frame *colfr)
 Routine to calculate the zeropoint from standard stars.

Detailed Description

Synopsis
Functions to create a photometric table and for deriving the zeropoint of images.
  #include omega_photometry.h
  #include omega_catalog.h
  #include omega_dfs.h
  #include omega_pfits.h
  #include omega_utils.h

Function Documentation

int omega_basic_param ( cpl_table *  sources,
double  scale,
double *  seeing,
double *  ellipticity 
)

Routine to calculate the seeing from stars.

Parameters:
sources Sextractor table with stars
scale scale in degrees (as in keyword CD1_1)
seeing double variable to write seeing
Returns:
0 in case of success or -1 in case of error

Definition at line 721 of file omega_photometry.c.

Referenced by omega_photom_tbl().

cpl_table* omega_photom_tbl ( const char *  star,
double  gain,
const cpl_frame *  refcat,
cpl_parameterlist *  pars,
cpl_table **  extra 
)

Match std stars with std reference catalogue and calculate zero point for matched stars.

Parameters:
star name of reduced standard star in disk
refcat frame of reference standard star catalogue
pars parameters list
extra table to write extra information
Returns:
table of matches between image and reference catalogue or NULL in case of error.

Definition at line 79 of file omega_photometry.c.

References omega_basic_param(), omega_filter_table_int(), omega_get_coverage(), omega_get_stds_table(), omega_matchstds(), omega_pfits_get_chipid(), omega_pfits_get_exptime(), omega_pfits_get_filter_info(), and omega_pfits_get_mean_airmass().

cpl_table* omega_zeropoints ( cpl_table *  matches,
cpl_table *  extra,
const cpl_frame *  monitfr,
const cpl_frame *  extfr,
const cpl_frame *  colfr 
)

Routine to calculate the zeropoint from standard stars.

Parameters:
matches table calculated in omega_photom_tbl
extra extra table calculated in omega_photom_tbl
monit name of monitoring report table
extname name of extinction curve table
zptbl output table where to write results
Returns:
table with zeropoints or NULL in case of error.

Definition at line 448 of file omega_photometry.c.

References omega_filter_table_float().


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