PRIME Observation Log 2025/11/12

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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: 2025/11/12
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 116.99999 +- 0.00097 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:36:33
Morning 05:05:03
Science Observation
(Sun altitude < -10°)
Start 20:00:30
End 04:41:07
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:00:30
End 20:40:45


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:01:50 08:40:37 0.695
GB Time 00:00:00 00:40:15 0.000
Non-GB Time 06:01:50 08:00:22 0.753


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 120 00:05:43 00:13:13 0.432
SAAO 720 00:34:19 01:30:27 0.379
OU 720 00:34:19 01:30:27 0.379
NASA 720 00:34:19 01:30:27 0.379
ABC 720 00:34:19 01:30:27 0.379


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 2880 02:17:16 06:01:50 0.379
TWILIGHT 120 00:05:43 00:13:13 0.432


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field19831_test 36 00:01:42 00:16:27 0.104
field19831 40 00:01:54 00:04:44 0.402
field19832 40 00:01:54 00:04:44 0.402
field19526 40 00:01:54 00:04:44 0.402
field19527 40 00:01:54 00:04:44 0.402
field19528 40 00:01:54 00:04:44 0.402
field19529 40 00:01:54 00:04:44 0.402
field19530 40 00:01:54 00:04:44 0.402
field19531 40 00:01:54 00:04:44 0.402
field19532 40 00:01:54 00:04:44 0.402
field19533 40 00:01:54 00:04:44 0.402
field19534 40 00:01:54 00:04:50 0.394
field19535 40 00:01:54 00:04:50 0.394
field19536 40 00:01:54 00:04:47 0.398
field19537 40 00:01:54 00:04:52 0.391
field19538 40 00:01:54 00:04:47 0.398
field19539 40 00:01:54 00:04:47 0.398
field19540 40 00:01:54 00:04:47 0.398
field19541 40 00:01:54 00:04:47 0.398
field19542 40 00:01:54 00:04:47 0.398
field19543 40 00:01:54 00:04:47 0.398
field19544 40 00:01:54 00:04:55 0.387
field15783 40 00:01:54 00:04:47 0.398
field15784 40 00:01:54 00:04:47 0.398
field15785 40 00:01:54 00:04:50 0.394
field15786 40 00:01:54 00:04:47 0.398
field15787 40 00:01:54 00:04:47 0.398
field15788 40 00:01:54 00:04:50 0.394
field15789 40 00:01:54 00:04:50 0.394
field15790 40 00:01:54 00:04:47 0.398
field16107 40 00:01:54 00:04:50 0.394
field19245 40 00:01:54 00:04:44 0.402
field18936 40 00:01:54 00:04:47 0.398
field18626 40 00:01:54 00:04:44 0.402
field18315 40 00:01:54 00:05:18 0.360
field15132 40 00:01:54 00:04:44 0.402
field15133 40 00:01:54 00:04:50 0.394
field15135 40 00:01:54 00:04:47 0.398
field15136 40 00:01:54 00:04:47 0.398
field15137 40 00:01:54 00:04:47 0.398
field14823 40 00:01:54 00:04:47 0.398
field15454 40 00:01:54 00:04:50 0.394
field15455 40 00:01:54 00:04:47 0.398
field15456 40 00:01:54 00:04:47 0.398
field15457 40 00:01:54 00:04:47 0.398
field15458 40 00:01:54 00:04:44 0.402
field15459 40 00:01:54 00:04:47 0.398
field15460 40 00:01:54 00:04:44 0.402
field15461 40 00:01:54 00:04:47 0.398
field15462 40 00:01:54 00:04:47 0.398
field15463 40 00:01:54 00:04:47 0.398
field15464 40 00:01:54 00:04:44 0.402
field15465 40 00:01:54 00:04:47 0.398
field15466 40 00:01:54 00:04:47 0.398
field15782 40 00:01:54 00:04:50 0.394
field14524 40 00:01:54 00:04:47 0.398
field14525 40 00:01:54 00:04:50 0.394
field14523 40 00:01:54 00:04:47 0.398
field14209 40 00:01:54 00:04:52 0.391
field14522 40 00:01:54 00:04:47 0.398
field14208 40 00:01:54 00:04:44 0.402
field14207 40 00:01:54 00:04:47 0.398
field14206 40 00:01:54 00:04:44 0.402
field14205 40 00:01:54 00:04:58 0.383
field17057 40 00:01:54 00:06:47 0.280
field18688_test 4 00:00:11 00:00:28 0.402
field18688 40 00:01:54 00:04:47 0.398
field18689 40 00:01:54 00:04:47 0.398
field18690 40 00:01:54 00:04:47 0.398
field18691 40 00:01:54 00:04:50 0.394
field18692 40 00:01:54 00:04:47 0.398
field18693 40 00:01:54 00:04:50 0.394
field18694 40 00:01:54 00:06:56 0.275
FLAT OY 120 00:05:43 00:13:13 0.432










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 53:59:10 106:11:48 0.508

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 2015:26:05 1046:39:18 968:46:47 271:15:30 232:30:25 232:30:25 232:30:25 218:31:24
Observed 1814:39:57
(90.04%)		 1045:28:05
(99.89%)		 769:11:51
(79.40%)		 182:20:30
(67.22%)		 173:45:39
(74.73%)		 275:13:36
(118.37%)		 137:52:06
(59.30%)		 218:31:24
(N/A)
Remaining 200:46:08
(9.96%)		 01:11:13
(0.11%)		 199:34:55
(20.60%)		 88:54:59
(32.78%)		 58:44:46
(25.27%)		 -43:16:50
(0.00%)		 94:38:19
(40.70%)		 00:00:00
(N/A)











Camera status (2025/11/12)



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