Working on file:  /opt/ggdata/data/auto/allsky/2015-08-06/2015_08_06__20_03_26.fits
Sun Altitude is:  -10
verify manually, header time far from filename:  /opt/ggdata/data/auto/allsky/2015-08-06/2015_08_06__20_03_26.fits
Time difference:  322.0