PRIME Observation Log 2025/11/24

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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: 2025/11/24
Local observer:
Remote observer: Togo. Ryo
Weather: clear
Comment:
Detector Temperature: 117.00001 +- 0.00113 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:48:11
Morning 04:58:50
Science Observation
(Sun altitude < -10°)
Start 20:12:58
End 04:34:03
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start --:--:--
End --:--:--


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 08:27:14 08:21:05 1.012
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 08:27:14 08:21:05 1.012


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.)
CALIB 424 00:20:12 00:49:08 0.411
SAAO 1220 00:58:09 02:06:48 0.459
OU 1220 00:58:09 02:06:48 0.459
NASA 1220 00:58:09 02:06:48 0.459
ABC 1220 00:58:09 02:06:48 0.459


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 372 00:17:43 00:37:55 0.468
all_sky_grid 4880 03:52:36 08:27:14 0.459
test 52 00:02:28 00:11:13 0.221


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OJ 200 00:09:32 00:20:42 0.460
field17315_test 48 00:02:17 00:18:08 0.126
field17315 40 00:01:54 00:03:52 0.491
field20720 40 00:01:54 00:03:47 0.503
field20721 40 00:01:54 00:03:47 0.503
field20722 40 00:01:54 00:03:52 0.491
field20421 40 00:01:54 00:03:52 0.491
field20422 40 00:01:54 00:03:50 0.497
field20423 40 00:01:54 00:03:50 0.497
field20424 40 00:01:54 00:03:50 0.497
field20425 40 00:01:54 00:03:52 0.491
field19816 40 00:01:54 00:03:50 0.497
field19201 40 00:01:54 00:03:50 0.497
field19202 40 00:01:54 00:03:50 0.497
field19203 40 00:01:54 00:03:47 0.503
field19204 40 00:01:54 00:03:50 0.497
field18895 40 00:01:54 00:03:50 0.497
field19206 40 00:01:54 00:03:50 0.497
field18897 40 00:01:54 00:03:58 0.480
field18898 40 00:01:54 00:03:52 0.491
field18899 40 00:01:54 00:03:50 0.497
field18900 40 00:01:54 00:03:50 0.497
field17021 40 00:01:54 00:03:52 0.491
field18902 40 00:01:54 00:03:50 0.497
field18903 40 00:01:54 00:03:50 0.497
field18904 40 00:01:54 00:03:50 0.497
field18905 40 00:01:54 00:03:47 0.503
field18906 40 00:01:54 00:03:50 0.497
field19217 40 00:01:54 00:03:50 0.497
field19218 40 00:01:54 00:03:50 0.497
field19219 40 00:01:54 00:03:50 0.497
field19220 40 00:01:54 00:03:52 0.491
field19221 40 00:01:54 00:03:52 0.491
field19222 40 00:01:54 00:03:47 0.503
field19223 40 00:01:54 00:03:47 0.503
field19224 40 00:01:54 00:03:47 0.503
field19225 40 00:01:54 00:03:50 0.497
field19226 40 00:01:54 00:03:47 0.503
field19227 40 00:01:54 00:03:50 0.497
field19228 40 00:01:54 00:03:50 0.497
field19845 40 00:01:54 00:03:52 0.491
field19846 40 00:01:54 00:03:52 0.491
field20457 40 00:01:54 00:03:50 0.497
field20458 40 00:01:54 00:03:47 0.503
field20459 40 00:01:54 00:03:47 0.503
field20460 40 00:01:54 00:03:47 0.503
field20461 40 00:01:54 00:03:52 0.491
field17362 40 00:01:54 00:03:52 0.491
field20463 40 00:01:54 00:03:52 0.491
field20464 40 00:01:54 00:03:52 0.491
field20465 40 00:01:54 00:03:52 0.491
field20466 40 00:01:54 00:03:47 0.503
field20163 40 00:01:54 00:03:50 0.497
field20164 40 00:01:54 00:03:47 0.503
field19859 40 00:01:54 00:03:47 0.503
field19552 40 00:01:54 00:03:47 0.503
field19858 40 00:01:54 00:04:12 0.453
field18600 40 00:01:54 00:03:50 0.497
field18601 40 00:01:54 00:04:01 0.474
field17357 40 00:01:54 00:03:52 0.491
field19848 40 00:01:54 00:03:50 0.497
field19849 40 00:01:54 00:03:47 0.503
field19850 40 00:01:54 00:03:47 0.504
field19851 40 00:01:54 00:03:47 0.503
field19852 40 00:01:54 00:03:47 0.503
field19853 40 00:01:54 00:03:47 0.503
field19854 40 00:01:54 00:03:47 0.503
field19855 40 00:01:54 00:03:50 0.497
field19856 40 00:01:54 00:03:52 0.491
field19857 40 00:01:54 00:03:52 0.491
field19551 40 00:01:54 00:03:50 0.497
field19550 40 00:01:54 00:07:11 0.265
field20156_test 28 00:01:20 00:10:21 0.129
field20156 40 00:01:54 00:03:50 0.497
field20157 40 00:01:54 00:03:47 0.503
field20158 40 00:01:54 00:03:47 0.503
field20159 40 00:01:54 00:03:55 0.485
field20160 40 00:01:54 00:03:50 0.497
field20161 40 00:01:54 00:05:32 0.344
field20162 40 00:01:54 00:03:55 0.485
field20759 40 00:01:54 00:03:47 0.503
field20760 40 00:01:54 00:03:50 0.497
field20761 40 00:01:54 00:03:50 0.497
field20762 40 00:01:54 00:03:52 0.491
field20763 40 00:01:54 00:03:50 0.497
field20764 40 00:01:54 00:03:52 0.491
field20765 40 00:01:54 00:03:50 0.497
field20766 40 00:01:54 00:04:01 0.474
field20767 40 00:01:54 00:07:11 0.265
field20799 40 00:01:54 00:06:35 0.289
field22837 40 00:01:54 00:03:52 0.491
field22838 40 00:01:54 00:03:47 0.503
field22839 40 00:01:54 00:03:52 0.491
field23125 40 00:01:54 00:03:47 0.503
field23126 40 00:01:54 00:03:50 0.497
field23127 40 00:01:54 00:03:47 0.503
field23128 40 00:01:54 00:03:47 0.503
field23129 40 00:01:54 00:03:52 0.491
field23130 40 00:01:54 00:03:50 0.497
field23131 40 00:01:54 00:03:52 0.491
field23132 40 00:01:54 00:04:32 0.420
field17752 40 00:01:54 00:03:55 0.485
field17753 40 00:01:54 00:03:58 0.480
field17754 40 00:01:54 00:03:52 0.491
field17755 40 00:01:54 00:04:43 0.404
test 52 00:02:28 00:11:13 0.221
field18998_test 4 00:00:11 00:00:59 0.193
field18998 40 00:01:54 00:03:55 0.485
field18999 40 00:01:54 00:03:55 0.485
field19000 40 00:01:54 00:03:52 0.491
field19001 40 00:01:54 00:03:52 0.491
field19002 40 00:01:54 00:03:47 0.504
field19003 40 00:01:54 00:03:50 0.497
field19004 40 00:01:54 00:03:55 0.485
field19005 40 00:01:54 00:03:55 0.485
field19006 40 00:01:54 00:03:52 0.491
field19007 40 00:01:54 00:03:52 0.491
field19008 40 00:01:54 00:03:55 0.485
field19009 40 00:01:54 00:03:58 0.480
field19010 40 00:01:54 00:03:55 0.485
field19011 40 00:01:54 00:03:58 0.480
field19012 40 00:01:54 00:03:55 0.485
field19013 40 00:01:54 00:03:50 0.497
field19014 40 00:01:54 00:03:55 0.485
field19015 40 00:01:54 00:06:21 0.300
FLAT_test OY 12 00:00:34 00:03:22 0.169
FLAT OY 160 00:07:37 00:13:49 0.552










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 209:59:39 370:50:11 0.566
Jul 224:49:02 377:25:14 0.596
Aug 230:19:15 357:22:01 0.644
Sep 190:24:38 318:36:32 0.598
Oct 183:24:57 296:59:20 0.618
Nov 129:23:02 208:07:45 0.622

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 2039:51:57 1045:33:03 994:18:54 278:24:29 238:38:08 238:38:08 238:38:08 225:41:05
Observed 1890:03:48
(92.66%)		 1045:33:03
(100.00%)		 844:30:44
(84.93%)		 196:03:05
(70.42%)		 187:28:15
(78.56%)		 309:24:41
(129.66%)		 151:34:42
(63.52%)		 225:41:05
(N/A)
Remaining 149:48:09
(7.34%)		 00:00:00
(0.00%)		 149:48:09
(15.07%)		 82:21:23
(29.58%)		 51:09:52
(21.44%)		 -71:13:27
(0.00%)		 87:03:26
(36.48%)		 00:00:00
(N/A)











Camera status (2025/11/24)



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