Calibration issues
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han59
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Hi!
I'm getting some confusing log outputs when trying to calibrate a bunch of images (for photometry). I have a new CMOS camera, so my standard process (with an Atik383L CCD) is somewhat disrupted. I have a library of darks (5 secs to 300 secs), flats for all filters, 5 secs, and then the lights. I add all darks in the dark tab, the flats in the flat tab, and the relevant darks (5-15 secs) in the flat-dark tab. And hit calibrate. And I get a log of warnings:
09:18:21 █ █ █ Saving calibrated file as /home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/RX_And_Light_V_30_secs_2022-09-05T00-06-57_170_cal.fit
09:18:21 Calibrating file: 171-477 "/home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/RX_And_Light_V_30_secs_2022-09-05T00-07-30_171.fits" to average. Using 50 darks, 10 flats, 0 flat-darks
09:18:22 █ █ █ Saving calibrated file as /home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/RX_And_Light_V_30_secs_2022-09-05T00-07-30_171_cal.fit
09:18:22 Calibrating file: 172-477 "/home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/RX_And_Light_V_30_secs_2022-09-05T00-08-03_172.fits" to average. Using 50 darks, 10 flats, 0 flat-darks
09:18:22 █ █ █ Saving calibrated file as /home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/RX_And_Light_V_30_secs_2022-09-05T00-08-03_172_cal.fit
09:18:23 Calibrating file: 173-477 "/home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/RX_And_Light_V_30_secs_2022-09-05T00-08-36_173.fits" to average. Using 50 darks, 10 flats, 0 flat-darks
09:18:23 █ █ █ Saving calibrated file as /home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/RX_And_Light_V_30_secs_2022-09-05T00-08-36_173_cal.fit
09:18:24 █ █ █ █ █ █ Warning, could not find a suitable dark for exposure "30 and temperature -10 and gain 5.800E+01"! De-classify temperature or exposure time or add correct darks. █ █ █ █ █ █
09:18:24 █ █ █ █ █ █ Warning, could not find a suitable flat for "V"! De-classify flat filter or add correct flat. █ █ █ █ █ █
09:18:24 Calibrating file: 174-477 "/home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/BZ UMa_Light_V_30_secs_2022-09-04T21-51-36_001.fits" to average. Using 50 darks, 10 flats, 0 flat-darks
09:18:24 █ █ █ Saving calibrated file as /home/magnus/astro_NAS/VAR/2022/2022-09-04_C11_QHY/BZ UMa_Light_V_30_secs_2022-09-04T21-51-36_001_cal.fit
09:18:24 █ █ █ █ █ █ Warning, could not find a suitable dark for exposure "30 and temperature -10 and gain 5.800E+01"! De-classify temperature or exposure time or add correct darks. █ █ █ █ █ █
09:18:24 █ █ █ █ █ █ Warning, could not find a suitable flat for "V"! De-classify flat filter or add correct flat. █ █ █ █ █ █
All images are taken at -10 C and with gain 58.
What I find highly confusing is that for some images, the V-filter flats are identified, but not for others. And I do NOT have the temperatur matching checked.
What might be going on here?
Magnus
Ah, I think I figured it out. There is a difference in geometry between the problematic and non-problematic files - however, that was not what was reported...
Magnus
Hi Magnus,
The dimension in pixels of the light and flat should be the same. This situation would be rare and it is not reported to avoid overload the user with messages. Reporting more specific will not be easy. There could be more then one file partly compatible so a list files.
Han