== Description of the algorithms used by IPP full force stage ==

=== Inputs ===
During the skycalibration stage of stack photometry a new fiuts table is created which contains the
parameters to be used for forced photometry. 

This table has one row for each source with the following columns
{{{
#!rst

==========================  ===============================  =============================
**Column**                  **Value for Extended Source**    **Value for Extended Source**
==========================  ===============================  =============================
ID                                  IPP_IDET                     IPP_IDET
X                                   X_PSF                        X_EXT
Y                                   Y_PSF                        Y_EXT
FLUX                                PSF_INST_FLUX/EXPTIME        10**(-0.4*EXT_INST_MAG)
AP_RADIUS                           AP_MAG_RADIUS                AP_MAG_RADIUS
KRON_RADIUS                         MOMENTS_R1*2.5               MOMENTS_R1*2.5
PETRO_RADIUS                        PETRO_RADIUS                 PETRO_RADIUS
FIT_GALAXY                          0                            1
PSF_STAR                            PM_SOURCE_MODE_PSFSTAR       PM_SOURCE_MODE_PSFSTAR
R_MAJOR                             0                            EXT_WIDTH_MAJ
R_MINOR                             0                            EXT_WIDTH_MIN
THETA                               0                            EXT_THETA
MODEL_TYPE                          -1                           model type for best fit
INDEX                               0                            0.5 / EXT_PAR_07
==========================  ===============================  =============================