File Name Entry Date Time UTR Object Name Observation Comments -------------------- ----------------------- --- -------------------- --------------------- img04000.fits 2011-04-05T00:25:00.352 10 UNe + QTH Test UNe + QTH brightness Description: Forgot to set frames! Not sure how many reads performed -- maybe 19? -------------------- ----------------------- --- -------------------- --------------------- img04001.fits 2011-04-05T00:33:17.055 10 UNe + QTH Test UNe + QTH brightness Description: Test of the low level QTH exposure. Looks good. -------------------- ----------------------- --- -------------------- --------------------- img04002.fits 2011-04-05T00:37:57.699 300 UNe + QTH first 17% only Persistence Test UNe + QTH brightness Description: This is a test of the persistence after one 500 sec exposure on a QTH+UNe to mimic a star + airglow. The lamps were both turned off after 17% of the exposure reached. -------------------- ----------------------- --- -------------------- --------------------- img04003.fits 2011-04-05T01:38:45.711 50 UNe + QTH Persistence Test UNe + QTH brightness Description: Now we are simulating a dither pair, to see the persistence effect after two 500 sec exposures. First exposure will be 50 SUTR and then this followed by 300 SUTR with lamps on for 50 SUTR. -------------------- ----------------------- --- -------------------- --------------------- img04004.fits 2011-04-05T01:49:06.511 300 UNe + QTH for only first 17% Persistence Test UNe + QTH brightness Description: This is the second of the "dither pair" exposures, but long enough to record 2500 sec of dark after the lamps turned off (at the 17% mark). -------------------- ----------------------- --- -------------------- --------------------- img04005.fits 2011-04-05T02:44:07.989 50 UNe + QTH Persistence Test UNe + QTH brightness Description: Now we are simulating the effects of a complete visit to a field, though without spectral dithering. We will take six 500 second exposures of the lamp, followed by long darks. The last of the six lamp exposures will include a long tail of dark time to get information on the immediate aftermath of an exposure to light on the persistence/leakage region of the blue chip. -------------------- ----------------------- --- -------------------- --------------------- img04006.fits 2011-04-05T02:53:00.516 50 UNe + QTH Persistence Test UNe + QTH brightness -------------------- ----------------------- --- -------------------- --------------------- img04007.fits 2011-04-05T03:01:52.606 50 UNe + QTH Persistence Test UNe + QTH brightness -------------------- ----------------------- --- -------------------- --------------------- img04008.fits 2011-04-05T03:10:44.730 50 UNe + QTH Persistence Test UNe + QTH brightness -------------------- ----------------------- --- -------------------- --------------------- img04009.fits 2011-04-05T03:19:36.971 50 UNe + QTH Persistence Test UNe + QTH brightness -------------------- ----------------------- --- -------------------- --------------------- img04010.fits 2011-04-05T03:31:17.384 300 UNe + QTH first frame only, 17% Persistence Test UNe + QTH brightness Description: This frame represents the last of a visit of 6 exposures, followed by dark. The lamps were turned off 17% of the way in on this exposure. Note that there was a slight, few minute gap before this frame started, but this might be the case for real observing anyway? The dataset should be basically ok for the general thing being tested, which is the effect of a visit on the persistence region.. -------------------- ----------------------- --- -------------------- --------------------- img04011.fits 2011-04-05T04:24:20.478 300 dark after "sky+starlight" exposure Persistence Test: darks -------------------- ----------------------- --- -------------------- --------------------- img04012.fits 2011-04-05T05:17:24.321 300 dark after "sky+starlight" exposure Persistence Test: darks -------------------- ----------------------- --- -------------------- --------------------- img04013.fits 2011-04-05T06:10:28.135 300 dark after "sky+starlight" exposure Persistence Test: darks -------------------- ----------------------- --- -------------------- --------------------- img04014.fits 2011-04-05T07:03:31.906 300 dark after "sky+starlight" exposure Persistence Test: darks File Name Entry Date Time UTR Object Name Observation Comments