Munipack's logo

Growth Curve Report

The optional parameter --verbose to gphot invokes addiding of GROWFUNC and GROWDATA extension to all files together with plotting results to a graphical PNG file.

GROWFUNC extension
ColumnDescription
Rradiuspix
GROWCURVEgrowth curve value at R
RADIALPROFILERadial profile at R

GROWFUNC tabulates growth-curve at more sampled radiuses than extension GROWCURVE contains. The curve is interpolated by smoothing cubic spline from the derived curve.

GROWDATA extension
ColumnDescription
GROWCURVEiEmpirical growth-curve for i-th aperture.
GROWCURVEERRiStatistical error of GROWCURVE
RESGROWiResiduals.

GROWDATA extension stores empirical growth-curves of stars on image. Growth curves of all stars are plotted in light blue, ones used for growth-curve construction in dark blue. Residuals between final curve and the data are plotted by RESGROW column. Order number in GROWDATA refers to GROWPHOT extension.

Grow Curve Report
An example of growth-curve report image.

See Also

Growth Curve Overview.