Started working on galaxy NGC4921_GROUP at Sat Jun 20 06:14:48 2020
Read 4 galaxy(ies) from /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-sample.fits
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-tractor.fits
Read 1446 sources from /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-tractor.fits
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-maskbits.fits.fz
  Dropping DR8-1953p277-3561 (SGA_ID=5005107, RA, Dec = 195.3672799 27.8518587): type=['SER'], r50=0.711 (<2.0) arcsec
Sort by flux!  [18334.193    4424.996     244.12321]
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-image-g.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-model-g.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-invvar-g.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-image-r.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-model-r.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-invvar-r.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-image-z.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-model-z.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-invvar-z.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-psf-r.fits.fz
Building masked image for central 1/3.
 Pixels used: 201479
 Peak Img[j, k]: 1040 1051
 Mean (j, k): 1040.46 1052.07
 Theta (deg): 98.8
 Astro PA (deg): 171.2
 Eps: 0.061
 Major axis (pix): 288.9
1040.4606167947416 1039.9153 1052.0653961439639 1050.8212
Building masked image for central 2/3.
 Pixels used: 41936
 Peak Img[j, k]: 511 763
 Mean (j, k): 509.44 762.22
 Theta (deg): 1.3
 Astro PA (deg): 88.7
 Eps: 0.185
 Major axis (pix): 148.8
509.4382271946224 510.9483 762.2244649126569 763.55066
Building masked image for central 3/3.
 Pixels used: 7184
 Peak Img[j, k]: 42 1524
 Mean (j, k): 61.80 1527.23
 Theta (deg): 167.9
 Astro PA (deg): 102.1
 Eps: 0.483
 Major axis (pix): 84.9
61.80314436804418 1385.1409 1527.228647622972 660.6745
Peak position has moved by more than 10 pixels---falling back on Tractor geometry!
  r=62.17 pixels
Starting ellipse-fitting for galaxy 1156592
Fitting g-band took......321.126 sec
Fitting r-band took......300.866 sec
Fitting z-band took......303.193 sec
Time for all images = 925.185 sec
Performing elliptical aperture photometry.
g CoG modeling succeeded with a chi^2 minimum of 1868.83
WARNING: The fit may be unsuccessful; check fit_info['message'] for more information. [astropy.modeling.fitting]
r CoG modeling succeeded with a chi^2 minimum of 736.15
z CoG modeling succeeded with a chi^2 minimum of 717.45
Time = 0.520 min
WARNING: The unit 'mgy / arcsec2' could not be saved in native FITS format and cannot be recovered in reading. If pyyaml is installed, it can roundtrip within astropy by using QTable both to write and read back, though one has to enable the unit before reading. [astropy.io.fits.convenience]
Writing /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-1156592-ellipse.fits
Starting ellipse-fitting for galaxy 487314
Fitting g-band took......43.206 sec
Fitting r-band took......45.489 sec
Fitting z-band took......46.536 sec
Time for all images = 135.231 sec
Performing elliptical aperture photometry.
g CoG modeling succeeded with a chi^2 minimum of 10.37
r CoG modeling succeeded with a chi^2 minimum of 23.60
z CoG modeling succeeded with a chi^2 minimum of 30.42
Time = 0.268 min
WARNING: The unit 'mgy / arcsec2' could not be saved in native FITS format and cannot be recovered in reading. If pyyaml is installed, it can roundtrip within astropy by using QTable both to write and read back, though one has to enable the unit before reading. [astropy.io.fits.convenience]
Writing /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-487314-ellipse.fits
Starting ellipse-fitting for galaxy 556334
Fitting g-band took......4.266 sec
Fitting r-band took......4.051 sec
Fitting z-band took......3.691 sec
Time for all images = 12.008 sec
Performing elliptical aperture photometry.
g CoG modeling succeeded with a chi^2 minimum of 1011.89
r CoG modeling succeeded with a chi^2 minimum of 1030.07
z CoG modeling succeeded with a chi^2 minimum of 362.91
Time = 0.125 min
WARNING: The unit 'mgy / arcsec2' could not be saved in native FITS format and cannot be recovered in reading. If pyyaml is installed, it can roundtrip within astropy by using QTable both to write and read back, though one has to enable the unit before reading. [astropy.io.fits.convenience]
Writing /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/195/NGC4921_GROUP/NGC4921_GROUP-largegalaxy-556334-ellipse.fits
Finished galaxy NGC4921_GROUP in 21.373 minutes.