Started working on galaxy NGC3875_GROUP at Wed Jun 17 16:25:32 2020
Read 3 galaxy(ies) from /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-sample.fits
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-tractor.fits
Read 792 sources from /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-tractor.fits
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-maskbits.fits.fz
Sort by flux!  [ 10472.244    6900.4507   1125.7474]
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-image-g.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-model-g.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-invvar-g.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-image-r.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-model-r.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-invvar-r.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-image-z.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-model-z.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-invvar-z.fits.fz
Reading /global/cscratch1/sd/ioannis/SGA-data-dr9alpha/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-psf-r.fits.fz
Building masked image for central 1/3.
 Pixels used: 92617
 Peak Img[j, k]: 813 801
 Mean (j, k): 812.83 795.89
 Theta (deg): 150.3
 Astro PA (deg): 119.7
 Eps: 0.230
 Major axis (pix): 290.2
812.831323466 812.563 795.888692052 801.208
Building masked image for central 2/3.
The previous central has masked the current central with shrink factor 1.00
The previous central has masked the current central with shrink factor 0.95
The previous central has masked the current central with shrink factor 0.90
The previous central has masked the current central with shrink factor 0.85
The previous central has masked the current central with shrink factor 0.80
The previous central has masked the current central with shrink factor 0.75
The previous central has masked the current central with shrink factor 0.70
 Pixels used: 18580
 Peak Img[j, k]: 725 614
 Mean (j, k): 725.29 595.34
 Theta (deg): 6.7
 Astro PA (deg): 83.3
 Eps: 0.638
 Major axis (pix): 184.5
725.28935364 724.649 595.340544243 622.445
Peak position has moved by more than 10 pixels---falling back on Tractor geometry!
  r=163.16 pixels
Building masked image for central 3/3.
 Pixels used: 9519
 Peak Img[j, k]: 764 1068
 Mean (j, k): 762.39 1071.54
 Theta (deg): 113.5
 Astro PA (deg): 156.5
 Eps: 0.253
 Major axis (pix): 77.5
762.385765219 764.094 1071.53878604 1068.0
Starting ellipse-fitting for galaxy 128110
Fitting g-band took......491.520 sec
Fitting r-band took......483.662 sec
Fitting z-band took......498.868 sec
Time for all images = 1474.050 sec
Performing elliptical aperture photometry.
g CoG modeling succeeded with a chi^2 minimum of 4292.73
r CoG modeling succeeded with a chi^2 minimum of 5700.92
z CoG modeling succeeded with a chi^2 minimum of 10763.02
Time = 1.291 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/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-128110-ellipse.fits
Starting ellipse-fitting for galaxy 920286
Fitting g-band took... Central pixel is masked; resorting to extreme measures!
...0.001 sec
Fitting r-band took... Central pixel is masked; resorting to extreme measures!
...0.000 sec
Fitting z-band took... Central pixel is masked; resorting to extreme measures!
...0.000 sec
Time for all images = 0.001 sec
Performing elliptical aperture photometry.
Insufficient profile to measure the radius at 22.0 mag/arcsec2!
Insufficient profile to measure the radius at 22.5 mag/arcsec2!
Insufficient profile to measure the radius at 23.0 mag/arcsec2!
Insufficient profile to measure the radius at 23.5 mag/arcsec2!
Insufficient profile to measure the radius at 24.0 mag/arcsec2!
Insufficient profile to measure the radius at 24.5 mag/arcsec2!
Insufficient profile to measure the radius at 25.0 mag/arcsec2!
Insufficient profile to measure the radius at 25.5 mag/arcsec2!
Insufficient profile to measure the radius at 26.0 mag/arcsec2!
Warning: Too few g-band pixels to fit the curve of growth; skipping.
Warning: Too few r-band pixels to fit the curve of growth; skipping.
Warning: Too few z-band pixels to fit the curve of growth; skipping.
Time = 0.000 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/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-920286-ellipse.fits
Starting ellipse-fitting for galaxy 923053
Fitting g-band took......14.145 sec
Fitting r-band took......13.889 sec
Fitting z-band took......12.610 sec
Time for all images = 40.645 sec
Performing elliptical aperture photometry.
g CoG modeling succeeded with a chi^2 minimum of 550.99
r CoG modeling succeeded with a chi^2 minimum of 422.79
z CoG modeling succeeded with a chi^2 minimum of 1872.76
Time = 0.088 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/176/NGC3875_GROUP/NGC3875_GROUP-largegalaxy-923053-ellipse.fits
Finished galaxy NGC3875_GROUP in 28.634 minutes.