PRIME Observation Log 2025/06/06

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Raw Log (Time is in SA time)
Ramp Log (Time is in UT)
CCMain Error Log (Time is in SA time)
Observation Log (Time is in UT)

Date: 2025/06/06
Local observer: Ryusei
Remote observer: Mayu
Weather: clear
Comment:
Detector Temperature: 113.99996 +- 0.00085 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:02:44
Morning 07:08:33
Science Observation
(Sun altitude < -10°)
Start 18:25:44
End 06:45:32
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:36:38
End 06:45:32


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 04:57:15 12:19:47 0.402
GB Time 03:21:01 11:08:53 0.301
Non-GB Time 01:36:13 01:10:54 1.357


Institute Statistics
- ALLSKY time is equally distributed to each institute
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB 1796 01:25:36 03:21:01 0.426
SAAO 243 00:11:34 00:24:03 0.481
OU 243 00:11:34 00:24:03 0.481
NASA 243 00:11:34 00:24:03 0.481
ABC 243 00:11:34 00:24:03 0.481


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 1700 01:21:02 02:59:38 0.451
SKY 96 00:04:34 00:21:22 0.214
all_sky_grid 972 00:46:19 01:36:13 0.481


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB76_test OH 20 00:00:57 00:08:20 0.114
GCsky 96 00:04:34 00:21:22 0.214
GB76_dither OH 192 00:09:09 00:18:47 0.487
GB77_dither OH 192 00:09:09 00:20:00 0.458
GB78_dither OH 192 00:09:09 00:19:04 0.480
GB94_dither OH 192 00:09:09 00:19:48 0.462
GB111_dither OH 192 00:09:09 00:18:55 0.483
GB110_dither OH 192 00:09:09 00:19:18 0.474
GB109_dither OH 96 00:04:34 00:10:35 0.432
GB92_dither OH 72 00:03:25 00:07:08 0.480
GB93_dither OH 72 00:03:25 00:07:22 0.465
GB75_dither OH 96 00:04:34 00:09:36 0.476
GB112_dither OH 96 00:04:34 00:10:11 0.449
GB79_dither OH 24 00:01:08 00:02:24 0.474
GB60_dither OH 24 00:01:08 00:02:19 0.493
GB95_dither OH 24 00:01:08 00:02:27 0.465
GB113_dither OH 24 00:01:08 00:03:18 0.347
field11917_test 12 00:00:34 00:02:43 0.210
field11917 40 00:01:54 00:03:55 0.486
field11918 40 00:01:54 00:03:50 0.497
field11919 40 00:01:54 00:03:52 0.491
field11920 40 00:01:54 00:03:50 0.497
field11921 40 00:01:54 00:03:55 0.485
field11922 40 00:01:54 00:03:52 0.491
field11923 40 00:01:54 00:03:52 0.491
field11924 40 00:01:54 00:03:52 0.491
field11925 40 00:01:54 00:03:52 0.491
field11926 40 00:01:54 00:03:52 0.491
field11927 40 00:01:54 00:03:50 0.497
field11928 40 00:01:54 00:03:55 0.485
field11929 40 00:01:54 00:03:52 0.491
field11930 40 00:01:54 00:04:09 0.458
field11931 40 00:01:54 00:03:52 0.491
field11932 40 00:01:54 00:03:52 0.491
field11933 40 00:01:54 00:03:52 0.491
field11934 40 00:01:54 00:03:50 0.497
field11935 40 00:01:54 00:03:50 0.497
field11936 40 00:01:54 00:03:52 0.491
field11937 40 00:01:54 00:03:52 0.491
field11938 40 00:01:54 00:03:52 0.491
field11939 40 00:01:54 00:03:50 0.497
field11940 40 00:01:54 00:04:05 0.465










Stats so far in 2025
Monthly observed fraction so far in 2025
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 103:35:29 259:42:08 0.399
Feb 53:54:42 259:20:18 0.208
Mar 158:57:47 319:07:20 0.498
Apr 161:02:39 338:08:53 0.476
May 244:24:55 372:31:50 0.656
Jun 54:59:09 73:50:13 0.745

Observed time so far in 2025
- Total time of each institute is calculated by the following
    [All observation time in 2025] = [Observed time so far] + [Remaining time in the future]
    [Remaining time in the future] = [Clear sky fraction] x [Remaining night time (Sun alt. < -10°)]
    
    [GB observation time in 2025] = [Observed GB time so far] + [Remaining GB time in the future]
    [Remaining GB time in the future] = [Clear sky fraction] x [Remaining GB night time (Sun alt. < -10° & GB alt. > 22°)]
    
    [Non-GB observation time in 2025] = [All observation time in 2025] - [GB observation time in 2025]
    
    [OU, NASA, ABC time in 2025] = 0.24 x [Non-GB observation time in 2025]
    [SAAO time in 2025] = 0.28 x [Non-GB observation time in 2025]
    
- ALLSKY time is equally distributed to each institute
- ToO time is distributed to each institute based on input of observer of each date
- Clear sky fraction of (0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5) is assumed for (Jan, ..., Dec) in the calculation of the remaining observation time
All
(hh:mm:ss) 		GB
(hh:mm:ss) 		Non-GB
(hh:mm:ss) 		SAAO
(hh:mm:ss) 		OU
(hh:mm:ss) 		NASA
(hh:mm:ss) 		ABC
(hh:mm:ss) 		CALIB
(hh:mm:ss)
Total 1854:21:46 957:03:24 897:18:22 251:14:44 215:21:12 215:21:12 215:21:12 148:22:33
Observed 776:48:10
(41.89%)		 419:50:42
(43.87%)		 356:57:27
(39.78%)		 57:08:47
(22.75%)		 84:20:03
(39.16%)		 166:29:44
(77.31%)		 48:58:52
(22.74%)		 148:22:33
(N/A)
Remaining 1077:33:36
(58.11%)		 537:12:41
(56.13%)		 540:20:54
(60.22%)		 194:05:57
(77.25%)		 131:01:09
(60.84%)		 48:51:27
(22.69%)		 166:22:20
(77.26%)		 00:00:00
(N/A)











Camera status (2025/06/06)



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