PRIME Observation Log 2025/11/10

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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: 2025/11/10
Local observer: Kansuke
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 116.99985 +- 0.00156 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:34:37
Morning 05:06:29
Science Observation
(Sun altitude < -10°)
Start 19:58:25
End 04:42:42
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:58:25
End 20:48:37


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:44:18 08:44:16 0.886
GB Time 00:00:00 00:50:11 0.000
Non-GB Time 07:44:18 07:54:05 0.979


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 240 00:11:26 00:26:22 0.434
SAAO 955 00:45:31 01:56:04 0.392
OU 955 00:45:31 01:56:04 0.392
NASA 955 00:45:31 01:56:04 0.392
ABC 955 00:45:31 01:56:04 0.392


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 3820 03:02:05 07:44:18 0.392
TWILIGHT 240 00:11:26 00:26:22 0.434


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field18258_test 20 00:00:57 00:05:46 0.165
field18258 40 00:01:54 00:04:44 0.402
field18882 40 00:01:54 00:04:44 0.402
field18883 40 00:01:54 00:04:47 0.398
field18261 40 00:01:54 00:04:47 0.398
field18574 40 00:01:54 00:04:47 0.398
field18886 40 00:01:54 00:04:47 0.398
field18576 40 00:01:54 00:04:47 0.398
field17638 40 00:01:54 00:04:44 0.402
field17324 40 00:01:54 00:04:44 0.402
field17325 40 00:01:54 00:04:47 0.398
field16695 40 00:01:54 00:04:52 0.391
field17642 40 00:01:54 00:04:47 0.398
field17643 40 00:01:54 00:04:50 0.394
field16698 40 00:01:54 00:04:52 0.391
field16699 40 00:01:54 00:04:47 0.398
field16700 40 00:01:54 00:04:47 0.398
field16701 40 00:01:54 00:04:47 0.398
field17333 40 00:01:54 00:04:47 0.398
field16387 40 00:01:54 00:04:50 0.394
field16388 40 00:01:54 00:04:47 0.398
field16389 40 00:01:54 00:04:50 0.394
field16390 40 00:01:54 00:04:47 0.398
field16391 40 00:01:54 00:04:52 0.391
field16392 40 00:01:54 00:04:44 0.402
field16393 40 00:01:54 00:04:44 0.402
field16394 40 00:01:54 00:04:47 0.398
field16395 40 00:01:54 00:04:44 0.402
field16396 40 00:01:54 00:04:44 0.402
field16713 40 00:01:54 00:04:44 0.402
field16714 40 00:01:54 00:04:47 0.398
field16715 40 00:01:54 00:04:47 0.398
field16716 40 00:01:54 00:04:47 0.398
field16717 40 00:01:54 00:04:47 0.398
field16718 40 00:01:54 00:04:44 0.402
field16719 40 00:01:54 00:04:47 0.398
field16720 40 00:01:54 00:04:47 0.398
field16721 40 00:01:54 00:04:50 0.394
field16722 40 00:01:54 00:04:50 0.394
field16723 40 00:01:54 00:04:50 0.394
field16724 40 00:01:54 00:04:47 0.398
field16725 40 00:01:54 00:04:50 0.394
field16726 40 00:01:54 00:04:47 0.398
field16727 40 00:01:54 00:04:47 0.398
field16728 40 00:01:54 00:04:55 0.387
field16729 40 00:01:54 00:04:47 0.398
field16730 40 00:01:54 00:04:47 0.398
field16731 40 00:01:54 00:04:47 0.398
field16732 40 00:01:54 00:04:50 0.394
field16733 40 00:01:54 00:04:47 0.398
field16734 40 00:01:54 00:04:47 0.398
field16735 40 00:01:54 00:04:50 0.394
field16736 40 00:01:54 00:04:52 0.391
field16737 40 00:01:54 00:04:44 0.402
field16738 40 00:01:54 00:04:44 0.402
field16739 40 00:01:54 00:04:47 0.398
field16740 40 00:01:54 00:04:44 0.402
field16741 40 00:01:54 00:04:47 0.398
field16742 40 00:01:54 00:04:44 0.402
field16743 40 00:01:54 00:04:47 0.398
field16744 40 00:01:54 00:04:47 0.398
field16745 40 00:01:54 00:04:47 0.398
field16430 40 00:01:54 00:04:47 0.398
field17062 40 00:01:54 00:05:18 0.360
field14506 40 00:01:54 00:04:44 0.402
field14507 40 00:01:54 00:04:44 0.402
field14508 40 00:01:54 00:04:47 0.398
field14510 40 00:01:54 00:04:44 0.402
field14511 40 00:01:54 00:04:47 0.398
field13885 40 00:01:54 00:04:47 0.398
field13886 40 00:01:54 00:04:47 0.398
field13887 40 00:01:54 00:04:50 0.394
field13888 40 00:01:54 00:04:52 0.391
field15147 40 00:01:54 00:04:47 0.398
field15148 40 00:01:54 00:04:44 0.402
field15149 40 00:01:54 00:04:47 0.398
field15150 40 00:01:54 00:04:47 0.398
field15151 40 00:01:54 00:04:47 0.398
field15467 40 00:01:54 00:04:50 0.394
field15468 40 00:01:54 00:04:50 0.394
field15469 40 00:01:54 00:04:50 0.394
field15470 40 00:01:54 00:04:44 0.402
field15471 40 00:01:54 00:04:47 0.398
field15472 40 00:01:54 00:04:47 0.398
field15473 40 00:01:54 00:04:47 0.398
field15474 40 00:01:54 00:04:58 0.383
field15475 40 00:01:54 00:04:55 0.387
field15476 40 00:01:54 00:04:50 0.394
field15792 40 00:01:54 00:04:50 0.394
field15793 40 00:01:54 00:04:50 0.394
field15794 40 00:01:54 00:04:50 0.394
field15795 40 00:01:54 00:04:52 0.391
field16111 40 00:01:54 00:04:50 0.394
field16112 40 00:01:54 00:04:47 0.398
field16429 40 00:01:54 00:04:55 0.387
field14528 40 00:01:54 00:06:45 0.282
FLAT ZO 240 00:11:26 00:26:22 0.434










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 39:02:53 88:48:44 0.440

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 2009:11:19 1046:56:20 962:14:59 269:25:47 230:56:23 230:56:23 230:56:23 217:44:25
Observed 1799:43:39
(89.57%)		 1045:02:22
(99.82%)		 754:41:16
(78.43%)		 178:42:51
(66.33%)		 170:08:00
(73.67%)		 271:35:57
(117.61%)		 134:14:27
(58.13%)		 217:44:25
(N/A)
Remaining 209:27:40
(10.43%)		 01:53:57
(0.18%)		 207:33:42
(21.57%)		 90:42:56
(33.67%)		 60:48:23
(26.33%)		 -41:20:27
(0.00%)		 96:41:56
(41.87%)		 00:00:00
(N/A)











Camera status (2025/11/10)



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