Index: trunk/psModules/src/objects/Makefile.am
===================================================================
--- trunk/psModules/src/objects/Makefile.am	(revision 24317)
+++ trunk/psModules/src/objects/Makefile.am	(revision 24401)
@@ -38,4 +38,5 @@
 	pmSourceIO_PS1_CAL_0.c \
 	pmSourceIO_CMF_PS1_V1.c \
+	pmSourceIO_CMF_PS1_V2.c \
 	pmSourceIO_MatchedRefs.c \
 	pmSourcePlots.c \
Index: trunk/psModules/src/objects/pmSourceIO.c
===================================================================
--- trunk/psModules/src/objects/pmSourceIO.c	(revision 24317)
+++ trunk/psModules/src/objects/pmSourceIO.c	(revision 24401)
@@ -496,4 +496,7 @@
                 status = pmSourcesWrite_CMF_PS1_V1 (file->fits, readout, sources, file->header, outhead, dataname);
             }
+            if (!strcmp (exttype, "PS1_V2")) {
+                status = pmSourcesWrite_CMF_PS1_V2 (file->fits, readout, sources, file->header, outhead, dataname);
+            }
             if (xsrcname) {
               if (!strcmp (exttype, "PS1_DEV_1")) {
@@ -506,4 +509,7 @@
                   status = pmSourcesWrite_CMF_PS1_V1_XSRC (file->fits, sources, xsrcname, recipe);
               }
+              if (!strcmp (exttype, "PS1_V2")) {
+                  status = pmSourcesWrite_CMF_PS1_V2_XSRC (file->fits, sources, xsrcname, recipe);
+              }
             }
             if (xfitname) {
@@ -517,4 +523,7 @@
                   status = pmSourcesWrite_CMF_PS1_V1_XFIT (file->fits, sources, xfitname);
               }
+              if (!strcmp (exttype, "PS1_V2")) {
+                  status = pmSourcesWrite_CMF_PS1_V2_XFIT (file->fits, sources, xfitname);
+              }
             }
             if (!status) {
@@ -944,4 +953,7 @@
                 sources = pmSourcesRead_CMF_PS1_V1 (file->fits, hdu->header);
             }
+            if (!strcmp (exttype, "PS1_V2")) {
+                sources = pmSourcesRead_CMF_PS1_V2 (file->fits, hdu->header);
+            }
         }
 
Index: trunk/psModules/src/objects/pmSourceIO.h
===================================================================
--- trunk/psModules/src/objects/pmSourceIO.h	(revision 24317)
+++ trunk/psModules/src/objects/pmSourceIO.h	(revision 24401)
@@ -39,4 +39,8 @@
 bool pmSourcesWrite_CMF_PS1_V1_XFIT (psFits *fits, psArray *sources, char *extname);
 
+bool pmSourcesWrite_CMF_PS1_V2 (psFits *fits, pmReadout *readout, psArray *sources, psMetadata *imageHeader, psMetadata *tableHeader, char *extname);
+bool pmSourcesWrite_CMF_PS1_V2_XSRC (psFits *fits, psArray *sources, char *extname, psMetadata *recipe);
+bool pmSourcesWrite_CMF_PS1_V2_XFIT (psFits *fits, psArray *sources, char *extname);
+
 bool pmSource_CMF_WritePHU (const pmFPAview *view, pmFPAfile *file, pmConfig *config);
 
@@ -48,4 +52,5 @@
 psArray *pmSourcesRead_PS1_CAL_0 (psFits *fits, psMetadata *header);
 psArray *pmSourcesRead_CMF_PS1_V1 (psFits *fits, psMetadata *header);
+psArray *pmSourcesRead_CMF_PS1_V2 (psFits *fits, psMetadata *header);
 
 bool pmSourcesWritePSFs (psArray *sources, char *filename);
Index: trunk/psModules/src/objects/pmSourceIO_CMF_PS1_V1.c
===================================================================
--- trunk/psModules/src/objects/pmSourceIO_CMF_PS1_V1.c	(revision 24317)
+++ trunk/psModules/src/objects/pmSourceIO_CMF_PS1_V1.c	(revision 24401)
@@ -160,6 +160,6 @@
         psMetadataAdd (row, PS_LIST_TAIL, "X_PSF_SIG",        PS_DATA_F32, "Sigma in PSF x coordinate",                  xErr); // XXX this is only measured for non-linear fits
         psMetadataAdd (row, PS_LIST_TAIL, "Y_PSF_SIG",        PS_DATA_F32, "Sigma in PSF y coordinate",                  yErr); // XXX this is only measured for non-linear fits
-        psMetadataAdd (row, PS_LIST_TAIL, "RA_PSF",           PS_DATA_F64, "PSF RA coordinate (degrees)",                ptSky.r*PS_DEG_RAD);
-        psMetadataAdd (row, PS_LIST_TAIL, "DEC_PSF",          PS_DATA_F64, "PSF DEC coordinate (degrees)",               ptSky.d*PS_DEG_RAD);
+        psMetadataAdd (row, PS_LIST_TAIL, "RA_PSF",           PS_DATA_F32, "PSF RA coordinate (degrees)",                ptSky.r*PS_DEG_RAD);
+        psMetadataAdd (row, PS_LIST_TAIL, "DEC_PSF",          PS_DATA_F32, "PSF DEC coordinate (degrees)",               ptSky.d*PS_DEG_RAD);
         psMetadataAdd (row, PS_LIST_TAIL, "POSANGLE",         PS_DATA_F32, "position angle at source (degrees)",         posAngle*PS_DEG_RAD);
         psMetadataAdd (row, PS_LIST_TAIL, "PLTSCALE",         PS_DATA_F32, "plate scale at source (arcsec/pixel)",       pltScale*PS_DEG_RAD*3600.0);
Index: trunk/psModules/src/objects/pmSourceIO_CMF_PS1_V2.c
===================================================================
--- trunk/psModules/src/objects/pmSourceIO_CMF_PS1_V2.c	(revision 24401)
+++ trunk/psModules/src/objects/pmSourceIO_CMF_PS1_V2.c	(revision 24401)
@@ -0,0 +1,684 @@
+/** @file  pmSourceIO.c
+ *
+ *  @author EAM, IfA
+ *
+ *  @version $Revision: 1.3 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2009-02-18 02:44:19 $
+ *
+ *  Copyright 2004 Maui High Performance Computing Center, University of Hawaii
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <math.h>
+#include <string.h>
+#include <pslib.h>
+
+#include "pmConfig.h"
+#include "pmDetrendDB.h"
+
+#include "pmHDU.h"
+#include "pmFPA.h"
+#include "pmFPALevel.h"
+#include "pmFPAview.h"
+#include "pmFPAfile.h"
+
+#include "pmSpan.h"
+#include "pmFootprint.h"
+#include "pmPeaks.h"
+#include "pmMoments.h"
+#include "pmGrowthCurve.h"
+#include "pmResiduals.h"
+#include "pmTrend2D.h"
+#include "pmPSF.h"
+#include "pmModel.h"
+#include "pmSource.h"
+#include "pmModelClass.h"
+#include "pmSourceIO.h"
+
+// panstarrs-style FITS table output (header + table in 1st extension)
+// this format consists of a header derived from the image header
+// followed by a zero-size matrix, followed by the table data
+
+bool pmSourcesWrite_CMF_PS1_V2 (psFits *fits, pmReadout *readout, psArray *sources,
+                                psMetadata *imageHeader, psMetadata *tableHeader, char *extname)
+{
+    PS_ASSERT_PTR_NON_NULL(fits, false);
+    PS_ASSERT_PTR_NON_NULL(sources, false);
+    PS_ASSERT_PTR_NON_NULL(extname, false);
+
+    psArray *table;
+    psMetadata *row;
+    int i;
+    psF32 *PAR, *dPAR;
+    psEllipseAxes axes;
+    psF32 xPos, yPos;
+    psF32 xErr, yErr;
+    psF32 errMag, chisq, apRadius;
+    psS32 nPix, nDOF;
+
+    pmChip *chip = readout->parent->parent;
+    pmFPA  *fpa  = chip->parent;
+
+    bool status1 = false;
+    bool status2 = false;
+    float magOffset = NAN;
+    float exptime   = psMetadataLookupF32 (&status1, fpa->concepts, "FPA.EXPOSURE");
+    float zeropt    = psMetadataLookupF32 (&status2, imageHeader, "ZPT_OBS");
+    float zeroptErr = psMetadataLookupF32 (&status2, imageHeader, "ZPT_ERR");
+    if (status1 && status2 && (exptime > 0.0)) {
+        magOffset = zeropt + 2.5*log10(exptime);
+    }
+
+    // if the sequence is defined, write these in seq order; otherwise
+    // write them in S/N order:
+    if (sources->n > 0) {
+        pmSource *source = (pmSource *) sources->data[0];
+        if (source->seq == -1) {
+          // let's write these out in S/N order
+          sources = psArraySort (sources, pmSourceSortBySN);
+        } else {
+          sources = psArraySort (sources, pmSourceSortBySeq);
+        }
+    }
+
+    table = psArrayAllocEmpty (sources->n);
+
+    // we write out PSF-fits for all sources, regardless of quality.  the source flags tell us the state
+    // by the time we call this function, all values should be assigned.  let's use asserts to be sure in some cases.
+    for (i = 0; i < sources->n; i++) {
+        pmSource *source = (pmSource *) sources->data[i];
+
+        // If source->seq is -1, source was generated in this analysis.  If source->seq is
+        // not -1, source was read from elsewhere: in the latter case, preserve the source
+        // ID.  source.seq is used instead of source.id since the latter is a const
+        // generated on Alloc, and would thus be wrong for read in sources.
+        if (source->seq == -1) {
+          source->seq = i;
+        }
+
+        // no difference between PSF and non-PSF model
+        pmModel *model = source->modelPSF;
+
+        if (model != NULL) {
+            PAR = model->params->data.F32;
+            dPAR = model->dparams->data.F32;
+            xPos = PAR[PM_PAR_XPOS];
+            yPos = PAR[PM_PAR_YPOS];
+            if (source->mode & PM_SOURCE_MODE_NONLINEAR_FIT) {
+              xErr = dPAR[PM_PAR_XPOS];
+              yErr = dPAR[PM_PAR_YPOS];
+            } else {
+              // in linear-fit mode, there is no error on the centroid
+              xErr = source->peak->dx;
+              yErr = source->peak->dy;
+            }
+            if (isfinite(PAR[PM_PAR_SXX]) && isfinite(PAR[PM_PAR_SXX]) && isfinite(PAR[PM_PAR_SXX])) {
+                axes = pmPSF_ModelToAxes (PAR, 20.0);
+            } else {
+                axes.major = NAN;
+                axes.minor = NAN;
+                axes.theta = NAN;
+            }
+            chisq = model->chisq;
+            nDOF = model->nDOF;
+            nPix = model->nPix;
+            apRadius = model->radiusFit; // XXX should we really use the fitRadius for aperture Radius?
+            errMag = model->dparams->data.F32[PM_PAR_I0] / model->params->data.F32[PM_PAR_I0];
+        } else {
+            xPos = source->peak->xf;
+            yPos = source->peak->yf;
+            xErr = source->peak->dx;
+            yErr = source->peak->dy;
+            axes.major = NAN;
+            axes.minor = NAN;
+            axes.theta = NAN;
+            chisq = NAN;
+            nDOF = 0;
+            nPix = 0;
+            apRadius = NAN;
+            errMag = NAN;
+        }
+
+        float calMag = isfinite(magOffset) ? source->psfMag + magOffset : NAN;
+        float peakMag = (source->peak->flux > 0) ? -2.5*log10(source->peak->flux) : NAN;
+        psS16 nImageOverlap = 1;
+
+        psSphere ptSky = {0.0, 0.0, 0.0, 0.0};
+        float posAngle = 0.0;
+        float pltScale = 0.0;
+        pmSourceLocalAstrometry (&ptSky, &posAngle, &pltScale, chip, xPos, yPos);
+
+        row = psMetadataAlloc ();
+        psMetadataAdd (row, PS_LIST_TAIL, "IPP_IDET",         PS_DATA_U32, "IPP detection identifier index",             source->seq);
+        psMetadataAdd (row, PS_LIST_TAIL, "X_PSF",            PS_DATA_F32, "PSF x coordinate",                           xPos);
+        psMetadataAdd (row, PS_LIST_TAIL, "Y_PSF",            PS_DATA_F32, "PSF y coordinate",                           yPos);
+        psMetadataAdd (row, PS_LIST_TAIL, "X_PSF_SIG",        PS_DATA_F32, "Sigma in PSF x coordinate",                  xErr); // XXX this is only measured for non-linear fits
+        psMetadataAdd (row, PS_LIST_TAIL, "Y_PSF_SIG",        PS_DATA_F32, "Sigma in PSF y coordinate",                  yErr); // XXX this is only measured for non-linear fits
+        psMetadataAdd (row, PS_LIST_TAIL, "POSANGLE",         PS_DATA_F32, "position angle at source (degrees)",         posAngle*PS_DEG_RAD);
+        psMetadataAdd (row, PS_LIST_TAIL, "PLTSCALE",         PS_DATA_F32, "plate scale at source (arcsec/pixel)",       pltScale*PS_DEG_RAD*3600.0);
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_INST_MAG",     PS_DATA_F32, "PSF fit instrumental magnitude",             source->psfMag);
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_INST_MAG_SIG", PS_DATA_F32, "Sigma of PSF instrumental magnitude",        errMag);
+        psMetadataAdd (row, PS_LIST_TAIL, "AP_MAG",           PS_DATA_F32, "magnitude in standard aperture",             source->apMag);
+        psMetadataAdd (row, PS_LIST_TAIL, "AP_MAG_RADIUS",    PS_DATA_F32, "radius used for aperture mags",              apRadius);
+        psMetadataAdd (row, PS_LIST_TAIL, "PEAK_FLUX_AS_MAG", PS_DATA_F32, "Peak flux expressed as magnitude",           peakMag);
+        psMetadataAdd (row, PS_LIST_TAIL, "CAL_PSF_MAG",      PS_DATA_F32, "PSF Magnitude using supplied calibration",   calMag);
+        psMetadataAdd (row, PS_LIST_TAIL, "CAL_PSF_MAG_SIG",  PS_DATA_F32, "measured scatter of zero point calibration", zeroptErr);
+        psMetadataAdd (row, PS_LIST_TAIL, "RA_PSF",           PS_DATA_F64, "PSF RA coordinate (degrees)",                ptSky.r*PS_DEG_RAD);
+        psMetadataAdd (row, PS_LIST_TAIL, "DEC_PSF",          PS_DATA_F64, "PSF DEC coordinate (degrees)",               ptSky.d*PS_DEG_RAD);
+        psMetadataAdd (row, PS_LIST_TAIL, "SKY",              PS_DATA_F32, "Sky level",                                  source->sky);
+        psMetadataAdd (row, PS_LIST_TAIL, "SKY_SIGMA",        PS_DATA_F32, "Sigma of sky level",                         source->skyErr);
+
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_CHISQ",        PS_DATA_F32, "Chisq of PSF-fit",                           chisq);
+        psMetadataAdd (row, PS_LIST_TAIL, "CR_NSIGMA",        PS_DATA_F32, "Nsigma deviations from PSF to CF",           source->crNsigma);
+        psMetadataAdd (row, PS_LIST_TAIL, "EXT_NSIGMA",       PS_DATA_F32, "Nsigma deviations from PSF to EXT",          source->extNsigma);
+
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_MAJOR",        PS_DATA_F32, "PSF width (major axis)",                     axes.major);
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_MINOR",        PS_DATA_F32, "PSF width (minor axis)",                     axes.minor);
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_THETA",        PS_DATA_F32, "PSF orientation angle",                      axes.theta);
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_QF",           PS_DATA_F32, "PSF coverage/quality factor",                source->pixWeight);
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_NDOF",         PS_DATA_S32, "degrees of freedom",                         nDOF);
+        psMetadataAdd (row, PS_LIST_TAIL, "PSF_NPIX",         PS_DATA_S32, "number of pixels in fit",                    nPix);
+
+        // distinguish moments measure from window vs S/N > XX ??
+        float mxx = source->moments ? source->moments->Mxx : NAN;
+        float mxy = source->moments ? source->moments->Mxy : NAN;
+        float myy = source->moments ? source->moments->Myy : NAN;
+        psMetadataAdd (row, PS_LIST_TAIL, "MOMENTS_XX",       PS_DATA_F32, "second moments (X^2)",                      mxx);
+        psMetadataAdd (row, PS_LIST_TAIL, "MOMENTS_XY",       PS_DATA_F32, "second moments (X*Y)",                      mxy);
+        psMetadataAdd (row, PS_LIST_TAIL, "MOMENTS_YY",       PS_DATA_F32, "second moments (Y*Y)",                      myy);
+
+        psMetadataAdd (row, PS_LIST_TAIL, "FLAGS",            PS_DATA_U32, "psphot analysis flags",                      source->mode);
+
+        // XXX not sure how to get this : need to load Nimages with weight?
+        psMetadataAdd (row, PS_LIST_TAIL, "N_FRAMES",         PS_DATA_U16, "Number of frames overlapping source center", nImageOverlap);
+        psMetadataAdd (row, PS_LIST_TAIL, "PADDING",          PS_DATA_S16, "padding", 0);
+
+        psArrayAdd (table, 100, row);
+        psFree (row);
+
+        // EXT_NSIGMA will be NAN if: 1) contour ellipse is imaginary; 2) source is not
+        // subtracted
+
+        // CR_NSIGMA will be NAN if: 1) source is not subtracted; 2) source is on the image
+        // edge; 3) any pixels in the 3x3 peak region are masked;
+    }
+
+    psMetadata *header = psMetadataCopy(NULL, tableHeader);
+    pmSourceMasksHeader(header);
+
+    if (table->n == 0) {
+        psFitsWriteBlank(fits, header, extname);
+        psFree(table);
+        psFree(header);
+        return true;
+    }
+
+    psTrace ("pmFPAfile", 5, "writing ext data %s\n", extname);
+    if (!psFitsWriteTable(fits, header, table, extname)) {
+        psError(PS_ERR_IO, false, "writing ext data %s\n", extname);
+        psFree(table);
+        psFree(header);
+        return false;
+    }
+    psFree(table);
+    psFree(header);
+
+    return true;
+}
+
+// read in a readout from the fits file
+psArray *pmSourcesRead_CMF_PS1_V2 (psFits *fits, psMetadata *header)
+{
+    PS_ASSERT_PTR_NON_NULL(fits, false);
+    PS_ASSERT_PTR_NON_NULL(header, false);
+
+    bool status;
+    psF32 *PAR, *dPAR;
+    psEllipseAxes axes;
+
+    // define PSF model type
+    // XXX need to carry the extra model parameters
+    int modelType = pmModelClassGetType ("PS_MODEL_GAUSS");
+
+    char *PSF_NAME = psMetadataLookupStr (&status, header, "PSF_NAME");
+    if (PSF_NAME != NULL) {
+        modelType = pmModelClassGetType (PSF_NAME);
+    }
+    assert (modelType > -1);
+
+    // We get the size of the table, and allocate the array of sources first because the table
+    // is large and ephemeral --- when the table gets blown away, whatever is allocated after
+    // the table is read blocks the free.  In fact, it's better to read the table row by row.
+    long numSources = psFitsTableSize(fits); // Number of sources in table
+    psArray *sources = psArrayAlloc(numSources); // Array of sources, to return
+
+    // convert the table to the pmSource entriesa
+    for (int i = 0; i < numSources; i++) {
+        psMetadata *row = psFitsReadTableRow(fits, i); // Table row
+
+        pmSource *source = pmSourceAlloc ();
+        pmModel *model = pmModelAlloc (modelType);
+        source->modelPSF  = model;
+        source->type = PM_SOURCE_TYPE_STAR; // XXX this should be added to the flags
+
+        // NOTE: A SEGV here because "model" is NULL is probably caused by not initialising the models.
+        PAR = model->params->data.F32;
+        dPAR = model->dparams->data.F32;
+
+        source->seq       = psMetadataLookupU32 (&status, row, "IPP_IDET");
+        PAR[PM_PAR_XPOS]  = psMetadataLookupF32 (&status, row, "X_PSF");
+        PAR[PM_PAR_YPOS]  = psMetadataLookupF32 (&status, row, "Y_PSF");
+        dPAR[PM_PAR_XPOS] = psMetadataLookupF32 (&status, row, "X_PSF_SIG");
+        dPAR[PM_PAR_YPOS] = psMetadataLookupF32 (&status, row, "Y_PSF_SIG");
+        axes.major        = psMetadataLookupF32 (&status, row, "PSF_MAJOR");
+        axes.minor        = psMetadataLookupF32 (&status, row, "PSF_MINOR");
+        axes.theta        = psMetadataLookupF32 (&status, row, "PSF_THETA");
+
+        PAR[PM_PAR_SKY]   = psMetadataLookupF32 (&status, row, "SKY");
+        dPAR[PM_PAR_SKY]  = psMetadataLookupF32 (&status, row, "SKY_SIGMA");
+        source->sky       = PAR[PM_PAR_SKY];
+        source->skyErr    = dPAR[PM_PAR_SKY];
+
+        // XXX use these to determine PAR[PM_PAR_I0]?
+        source->psfMag    = psMetadataLookupF32 (&status, row, "PSF_INST_MAG");
+        source->errMag    = psMetadataLookupF32 (&status, row, "PSF_INST_MAG_SIG");
+        source->apMag     = psMetadataLookupF32 (&status, row, "AP_MAG");
+
+        // XXX this scaling is incorrect: does not include the 2 \pi AREA factor
+        PAR[PM_PAR_I0]    = (isfinite(source->psfMag)) ? pow(10.0, -0.4*source->psfMag) : NAN;
+        dPAR[PM_PAR_I0]   = (isfinite(source->psfMag)) ? PAR[PM_PAR_I0] * source->errMag : NAN;
+
+        pmPSF_AxesToModel (PAR, axes);
+
+        float peakMag     = psMetadataLookupF32 (&status, row, "PEAK_FLUX_AS_MAG");
+        float peakFlux    = (isfinite(peakMag)) ? pow(10.0, -0.4*peakMag) : NAN;
+
+        // recreate the peak to match (xPos, yPos) +/- (xErr, yErr)
+        source->peak = pmPeakAlloc(PAR[PM_PAR_XPOS], PAR[PM_PAR_YPOS], peakFlux, PM_PEAK_LONE);
+        source->peak->flux = peakFlux;
+        source->peak->dx   = dPAR[PM_PAR_XPOS];
+        source->peak->dy   = dPAR[PM_PAR_YPOS];
+
+        source->pixWeight = psMetadataLookupF32 (&status, row, "PSF_QF");
+        source->crNsigma  = psMetadataLookupF32 (&status, row, "CR_NSIGMA");
+        source->extNsigma = psMetadataLookupF32 (&status, row, "EXT_NSIGMA");
+
+        // note that some older versions used PSF_PROBABILITY: this was not well defined.
+        model->chisq      = psMetadataLookupF32 (&status, row, "PSF_CHISQ");
+        model->nDOF       = psMetadataLookupS32 (&status, row, "PSF_NDOF");
+        model->nPix       = psMetadataLookupS32 (&status, row, "PSF_NPIX");
+        model->radiusFit  = psMetadataLookupS32 (&status, row, "AP_MAG_RADIUS");
+
+        source->moments = pmMomentsAlloc ();
+        source->moments->Mxx = psMetadataLookupF32 (&status, row, "MOMENTS_XX");
+        source->moments->Mxy = psMetadataLookupF32 (&status, row, "MOMENTS_XY");
+        source->moments->Myy = psMetadataLookupF32 (&status, row, "MOMENTS_YY");
+
+        source->mode = psMetadataLookupU32 (&status, row, "FLAGS");
+        assert (status);
+
+        sources->data[i] = source;
+        psFree(row);
+    }
+
+    return sources;
+}
+
+// XXX this layout is still the same as PS1_DEV_1
+bool pmSourcesWrite_CMF_PS1_V2_XSRC (psFits *fits, psArray *sources, char *extname, psMetadata *recipe)
+{
+
+    bool status;
+    psArray *table;
+    psMetadata *row;
+    psF32 *PAR, *dPAR;
+    psF32 xPos, yPos;
+    psF32 xErr, yErr;
+
+    // create a header to hold the output data
+    psMetadata *outhead = psMetadataAlloc ();
+
+    // write the links to the image header
+    psMetadataAddStr (outhead, PS_LIST_TAIL, "EXTNAME", PS_META_REPLACE, "xsrc table extension", extname);
+
+    // let's write these out in S/N order
+    sources = psArraySort (sources, pmSourceSortBySN);
+
+    table = psArrayAllocEmpty (sources->n);
+
+    // which extended source analyses should we perform?
+    bool doPetrosian    = psMetadataLookupBool (&status, recipe, "EXTENDED_SOURCE_PETROSIAN");
+    bool doIsophotal    = psMetadataLookupBool (&status, recipe, "EXTENDED_SOURCE_ISOPHOTAL");
+    bool doAnnuli       = psMetadataLookupBool (&status, recipe, "EXTENDED_SOURCE_ANNULI");
+    bool doKron         = psMetadataLookupBool (&status, recipe, "EXTENDED_SOURCE_KRON");
+
+    psVector *radialBinsLower = psMetadataLookupPtr (&status, recipe, "RADIAL.ANNULAR.BINS.LOWER");
+    psVector *radialBinsUpper = psMetadataLookupPtr (&status, recipe, "RADIAL.ANNULAR.BINS.UPPER");
+    assert (radialBinsLower->n == radialBinsUpper->n);
+
+    // we write out all sources, regardless of quality.  the source flags tell us the state
+    for (int i = 0; i < sources->n; i++) {
+        // skip source if it is not a ext sourc
+        // XXX we have two places that extended source parameters are measured:
+        // psphotExtendedSources, which measures the aperture-like parameters and (potentially) the psf-convolved extended source models,
+        // psphotFitEXT, which does the simple extended source model fit (not psf-convolved)
+        // should we require both?
+
+        pmSource *source = sources->data[i];
+
+        // skip sources without measurements
+        if (source->extpars == NULL) continue;
+
+        // we require a PSF model fit (ignore the real crud)
+        pmModel *model = source->modelPSF;
+        if (model == NULL) continue;
+
+        // XXX I need to split the extended models from the extended aperture measurements
+        PAR = model->params->data.F32;
+        dPAR = model->dparams->data.F32;
+        xPos = PAR[PM_PAR_XPOS];
+        yPos = PAR[PM_PAR_YPOS];
+        xErr = dPAR[PM_PAR_XPOS];
+        yErr = dPAR[PM_PAR_YPOS];
+
+        row = psMetadataAlloc ();
+
+        // XXX we are not writing out the mode (flags) or the type (psf, ext, etc)
+        psMetadataAdd (row, PS_LIST_TAIL, "IPP_IDET",         PS_DATA_U32, "IPP detection identifier index",             source->seq);
+        psMetadataAdd (row, PS_LIST_TAIL, "X_EXT",            PS_DATA_F32, "EXT model x coordinate",                     xPos);
+        psMetadataAdd (row, PS_LIST_TAIL, "Y_EXT",            PS_DATA_F32, "EXT model y coordinate",                     yPos);
+        psMetadataAdd (row, PS_LIST_TAIL, "X_EXT_SIG",        PS_DATA_F32, "Sigma in EXT x coordinate",                  xErr);
+        psMetadataAdd (row, PS_LIST_TAIL, "Y_EXT_SIG",        PS_DATA_F32, "Sigma in EXT y coordinate",                  yErr);
+
+        // Petrosian measurements
+        // XXX insert header data: petrosian ref radius, flux ratio
+        if (doPetrosian) {
+            pmSourcePetrosianValues *petrosian = source->extpars->petrosian;
+            if (petrosian) {
+                psMetadataAdd (row, PS_LIST_TAIL, "PETRO_MAG",        PS_DATA_F32, "Petrosian Magnitude",       petrosian->mag);
+                psMetadataAdd (row, PS_LIST_TAIL, "PETRO_MAG_ERR",    PS_DATA_F32, "Petrosian Magnitude Error", petrosian->magErr);
+                psMetadataAdd (row, PS_LIST_TAIL, "PETRO_RADIUS",     PS_DATA_F32, "Petrosian Radius",          petrosian->rad);
+                psMetadataAdd (row, PS_LIST_TAIL, "PETRO_RADIUS_ERR", PS_DATA_F32, "Petrosian Radius Error",    petrosian->radErr);
+            } else {
+                psMetadataAdd (row, PS_LIST_TAIL, "PETRO_MAG",        PS_DATA_F32, "Petrosian Magnitude",       NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "PETRO_MAG_ERR",    PS_DATA_F32, "Petrosian Magnitude Error", NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "PETRO_RADIUS",     PS_DATA_F32, "Petrosian Radius",          NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "PETRO_RADIUS_ERR", PS_DATA_F32, "Petrosian Radius Error",    NAN);
+            }
+        }
+
+        // Kron measurements
+        if (doKron) {
+            pmSourceKronValues *kron = source->extpars->kron;
+            if (kron) {
+                psMetadataAdd (row, PS_LIST_TAIL, "KRON_MAG",        PS_DATA_F32, "Kron Magnitude",       kron->mag);
+                psMetadataAdd (row, PS_LIST_TAIL, "KRON_MAG_ERR",    PS_DATA_F32, "Kron Magnitude Error", kron->magErr);
+                psMetadataAdd (row, PS_LIST_TAIL, "KRON_RADIUS",     PS_DATA_F32, "Kron Radius",          kron->rad);
+                psMetadataAdd (row, PS_LIST_TAIL, "KRON_RADIUS_ERR", PS_DATA_F32, "Kron Radius Error",    kron->radErr);
+            } else {
+                psMetadataAdd (row, PS_LIST_TAIL, "KRON_MAG",        PS_DATA_F32, "Kron Magnitude",       NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "KRON_MAG_ERR",    PS_DATA_F32, "Kron Magnitude Error", NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "KRON_RADIUS",     PS_DATA_F32, "Kron Radius",          NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "KRON_RADIUS_ERR", PS_DATA_F32, "Kron Radius Error",    NAN);
+            }
+        }
+
+        // Isophot measurements
+        // XXX insert header data: isophotal level
+        if (doIsophotal) {
+            pmSourceIsophotalValues *isophot = source->extpars->isophot;
+            if (isophot) {
+                psMetadataAdd (row, PS_LIST_TAIL, "ISOPHOT_MAG",        PS_DATA_F32, "Isophot Magnitude",       isophot->mag);
+                psMetadataAdd (row, PS_LIST_TAIL, "ISOPHOT_MAG_ERR",    PS_DATA_F32, "Isophot Magnitude Error", isophot->magErr);
+                psMetadataAdd (row, PS_LIST_TAIL, "ISOPHOT_RADIUS",     PS_DATA_F32, "Isophot Radius",          isophot->rad);
+                psMetadataAdd (row, PS_LIST_TAIL, "ISOPHOT_RADIUS_ERR", PS_DATA_F32, "Isophot Radius Error",    isophot->radErr);
+            } else {
+                psMetadataAdd (row, PS_LIST_TAIL, "ISOPHOT_MAG",        PS_DATA_F32, "Isophot Magnitude",       NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "ISOPHOT_MAG_ERR",    PS_DATA_F32, "Isophot Magnitude Error", NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "ISOPHOT_RADIUS",     PS_DATA_F32, "Isophot Radius",          NAN);
+                psMetadataAdd (row, PS_LIST_TAIL, "ISOPHOT_RADIUS_ERR", PS_DATA_F32, "Isophot Radius Error",    NAN);
+            }
+        }
+
+        // Flux Annuli
+        if (doAnnuli) {
+            pmSourceAnnuli *annuli = source->extpars->annuli;
+            if (annuli) {
+                psVector *fluxVal = annuli->flux;
+                psVector *fluxErr = annuli->fluxErr;
+                psVector *fluxVar = annuli->fluxVar;
+
+                for (int j = 0; j < fluxVal->n; j++) {
+                    char name[32];
+                    sprintf (name, "FLUX_VAL_R_%02d", j);
+                    psMetadataAdd (row, PS_LIST_TAIL, name, PS_DATA_F32, "flux value in annulus", fluxVal->data.F32[j]);
+                    sprintf (name, "FLUX_ERR_R_%02d", j);
+                    psMetadataAdd (row, PS_LIST_TAIL, name, PS_DATA_F32, "flux error in annulus", fluxErr->data.F32[j]);
+                    sprintf (name, "FLUX_VAR_R_%02d", j);
+                    psMetadataAdd (row, PS_LIST_TAIL, name, PS_DATA_F32, "flux stdev in annulus", fluxVar->data.F32[j]);
+                }
+            } else {
+                for (int j = 0; j < radialBinsLower->n; j++) {
+                    char name[32];
+                    sprintf (name, "FLUX_VAL_R_%02d", j);
+                    psMetadataAdd (row, PS_LIST_TAIL, name, PS_DATA_F32, "flux value in annulus", NAN);
+                    sprintf (name, "FLUX_ERR_R_%02d", j);
+                    psMetadataAdd (row, PS_LIST_TAIL, name, PS_DATA_F32, "flux error in annulus", NAN);
+                    sprintf (name, "FLUX_VAR_R_%02d", j);
+                    psMetadataAdd (row, PS_LIST_TAIL, name, PS_DATA_F32, "flux stdev in annulus", NAN);
+                }
+            }
+        }
+
+        psArrayAdd (table, 100, row);
+        psFree (row);
+    }
+
+    if (table->n == 0) {
+        psFitsWriteBlank (fits, outhead, extname);
+        psFree (outhead);
+        psFree (table);
+        return true;
+    }
+
+    psTrace ("pmFPAfile", 5, "writing ext data %s\n", extname);
+    if (!psFitsWriteTable (fits, outhead, table, extname)) {
+        psError(PS_ERR_IO, false, "writing ext data %s\n", extname);
+        psFree (outhead);
+        psFree(table);
+        return false;
+    }
+    psFree (outhead);
+    psFree (table);
+
+    return true;
+}
+
+// XXX this layout is still the same as PS1_DEV_1
+bool pmSourcesWrite_CMF_PS1_V2_XFIT (psFits *fits, psArray *sources, char *extname)
+{
+
+    psArray *table;
+    psMetadata *row;
+    psF32 *PAR, *dPAR;
+    psEllipseAxes axes;
+    psF32 xPos, yPos;
+    psF32 xErr, yErr;
+    char name[64];
+
+    // create a header to hold the output data
+    psMetadata *outhead = psMetadataAlloc ();
+
+    // write the links to the image header
+    psMetadataAddStr (outhead, PS_LIST_TAIL, "EXTNAME", PS_META_REPLACE, "xsrc table extension", extname);
+
+    // let's write these out in S/N order
+    sources = psArraySort (sources, pmSourceSortBySN);
+
+    // we are writing one row per model; we need to write out same number of columns for each row: find the max Nparams
+    int nParamMax = 0;
+    for (int i = 0; i < sources->n; i++) {
+        pmSource *source = sources->data[i];
+        if (source->modelFits == NULL) continue;
+        for (int j = 0; j < source->modelFits->n; j++) {
+            pmModel *model = source->modelFits->data[j];
+            assert (model);
+            nParamMax = PS_MAX (nParamMax, model->params->n);
+        }
+    }
+
+    table = psArrayAllocEmpty (sources->n);
+
+    // we write out all sources, regardless of quality.  the source flags tell us the state
+    for (int i = 0; i < sources->n; i++) {
+
+        pmSource *source = sources->data[i];
+
+        // XXX if no model fits are saved, write out modelEXT?
+        if (source->modelFits == NULL) continue;
+
+        // We have multiple sources : need to flag the one used to subtract the light (the 'best' model)
+        for (int j = 0; j < source->modelFits->n; j++) {
+
+            // choose the convolved EXT model, if available, otherwise the simple one
+            pmModel *model = source->modelFits->data[j];
+            assert (model);
+
+            PAR = model->params->data.F32;
+            dPAR = model->dparams->data.F32;
+            xPos = PAR[PM_PAR_XPOS];
+            yPos = PAR[PM_PAR_YPOS];
+            xErr = dPAR[PM_PAR_XPOS];
+            yErr = dPAR[PM_PAR_YPOS];
+
+            axes = pmPSF_ModelToAxes (PAR, 20.0);
+
+            row = psMetadataAlloc ();
+
+            // XXX we are not writing out the mode (flags) or the type (psf, ext, etc)
+            psMetadataAddU32 (row, PS_LIST_TAIL, "IPP_IDET",         0, "IPP detection identifier index",             source->seq);
+            psMetadataAddF32 (row, PS_LIST_TAIL, "X_EXT",            0, "EXT model x coordinate",                     xPos);
+            psMetadataAddF32 (row, PS_LIST_TAIL, "Y_EXT",            0, "EXT model y coordinate",                     yPos);
+            psMetadataAddF32 (row, PS_LIST_TAIL, "X_EXT_SIG",        0, "Sigma in EXT x coordinate",                  xErr);
+            psMetadataAddF32 (row, PS_LIST_TAIL, "Y_EXT_SIG",        0, "Sigma in EXT y coordinate",                  yErr);
+            psMetadataAddF32 (row, PS_LIST_TAIL, "EXT_INST_MAG",     0, "EXT fit instrumental magnitude",             model->mag);
+            psMetadataAddF32 (row, PS_LIST_TAIL, "EXT_INST_MAG_SIG", 0, "Sigma of PSF instrumental magnitude",        model->magErr);
+
+            psMetadataAddF32 (row, PS_LIST_TAIL, "NPARAMS",          0, "number of model parameters",                 model->params->n);
+            psMetadataAddStr (row, PS_LIST_TAIL, "MODEL_TYPE",       0, "name of model",                              pmModelClassGetName (model->type));
+
+            // XXX these should be major and minor, not 'x' and 'y'
+            psMetadataAddF32 (row, PS_LIST_TAIL, "EXT_WIDTH_MAJ",    0, "EXT width in x coordinate",                  axes.major);
+            psMetadataAddF32 (row, PS_LIST_TAIL, "EXT_WIDTH_MIN",    0, "EXT width in y coordinate",                  axes.minor);
+            psMetadataAddF32 (row, PS_LIST_TAIL, "EXT_THETA",        0, "EXT orientation angle",                      axes.theta);
+
+            // write out the other generic parameters
+            for (int k = 0; k < nParamMax; k++) {
+                if (k == PM_PAR_I0) continue;
+                if (k == PM_PAR_SKY) continue;
+                if (k == PM_PAR_XPOS) continue;
+                if (k == PM_PAR_YPOS) continue;
+                if (k == PM_PAR_SXX) continue;
+                if (k == PM_PAR_SXY) continue;
+                if (k == PM_PAR_SYY) continue;
+
+                snprintf (name, 64, "EXT_PAR_%02d", k);
+
+                if (k < model->params->n) {
+                    psMetadataAdd (row, PS_LIST_TAIL, name, PS_DATA_F32, "", model->params->data.F32[k]);
+                } else {
+                    psMetadataAddF32 (row, PS_LIST_TAIL, name, PS_DATA_F32, "", NAN);
+                }
+            }
+
+            // XXX other parameters which may be set.
+            // XXX flag / value to define the model
+            // XXX write out the model type, fit status flags
+
+            psArrayAdd (table, 100, row);
+            psFree (row);
+        }
+    }
+
+    if (table->n == 0) {
+        psFitsWriteBlank (fits, outhead, extname);
+        psFree (outhead);
+        psFree (table);
+        return true;
+    }
+
+    psTrace ("pmFPAfile", 5, "writing ext data %s\n", extname);
+    if (!psFitsWriteTable (fits, outhead, table, extname)) {
+        psError(PS_ERR_IO, false, "writing ext data %s\n", extname);
+        psFree (outhead);
+        psFree(table);
+        return false;
+    }
+    psFree (outhead);
+    psFree (table);
+    return true;
+}
+
+bool pmSourceLocalAstrometry (psSphere *ptSky, float *posAngle, float *pltScale, pmChip *chip, float xPos, float yPos) {
+
+    pmFPA *fpa = chip->parent;
+
+    if (!chip->toFPA) goto escape;
+    if (!fpa->toTPA) goto escape;
+    if (!fpa->toSky) goto escape;
+
+    // generate RA,DEC
+    psPlane ptCH, ptFP, ptTP_o, ptTP_x, ptTP_y;
+
+    // calculate the astrometry for the coordinate of interest
+    ptCH.x = xPos;
+    ptCH.y = yPos;
+    psPlaneTransformApply (&ptFP, chip->toFPA, &ptCH);
+    psPlaneTransformApply (&ptTP_o, fpa->toTPA, &ptFP);
+    psDeproject (ptSky, &ptTP_o, fpa->toSky);
+
+    // calculate the astrometry for the coordinate + 1pix in X
+    ptCH.x = xPos + 1.0;
+    ptCH.y = yPos;
+    psPlaneTransformApply (&ptFP, chip->toFPA, &ptCH);
+    psPlaneTransformApply (&ptTP_x, fpa->toTPA, &ptFP);
+
+    // calculate the astrometry for the coordinate + 1pix in Y
+    ptCH.x = xPos;
+    ptCH.y = yPos + 1.0;
+    psPlaneTransformApply (&ptFP, chip->toFPA, &ptCH);
+    psPlaneTransformApply (&ptTP_y, fpa->toTPA, &ptFP);
+
+    // the resulting Tangent Plane coordinates are in TP pixels; convert to local Tangent Plane
+    // degrees
+
+    float dTPx_dCHx = fpa->toSky->Xs * (ptTP_x.x - ptTP_o.x);
+    float dTPy_dCHx = fpa->toSky->Ys * (ptTP_x.y - ptTP_o.y);
+
+    float dTPx_dCHy = fpa->toSky->Xs * (ptTP_y.x - ptTP_o.x);
+    float dTPy_dCHy = fpa->toSky->Ys * (ptTP_y.y - ptTP_o.y);
+
+    float pltScale_x = hypot(dTPx_dCHx, dTPy_dCHx);
+    float pltScale_y = hypot(dTPx_dCHy, dTPy_dCHy);
+    *pltScale = 0.5*(pltScale_x + pltScale_y);
+
+    float posAngle_x = atan2 (+dTPy_dCHx, +dTPx_dCHx);
+    float posAngle_y = atan2 (-dTPy_dCHy, +dTPx_dCHy);
+    *posAngle = 0.5*(posAngle_x + posAngle_y);
+
+    return true;
+
+escape:
+    // no astrometry calibration, give up
+    ptSky->r = NAN;
+    ptSky->d = NAN;
+    *posAngle = NAN;
+    *pltScale = NAN;
+
+    return false;
+}
