PRIME Observation Log 2025/11/04

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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: 2025/11/04
Local observer: Kansuke
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 117.00054 +- 0.00314 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:28:55
Morning 05:11:22
Science Observation
(Sun altitude < -10°)
Start 19:52:17
End 04:48:01
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:52:17
End 21:12:12


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:18:16 08:55:43 0.818
GB Time 01:18:12 01:19:55 0.979
Non-GB Time 06:00:04 07:35:48 0.790


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 160 00:07:37 00:19:17 0.395
GB 584 00:27:50 01:18:12 0.356
SAAO 742 00:35:22 01:30:01 0.393
OU 742 00:35:22 01:30:01 0.393
NASA 742 00:35:22 01:30:01 0.393
ABC 742 00:35:22 01:30:01 0.393


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 160 00:07:37 00:19:17 0.395
Bulge 560 00:26:41 01:15:13 0.355
SKY 24 00:01:08 00:02:59 0.383
all_sky_grid 2968 02:21:28 06:00:04 0.393


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT ZO 160 00:07:37 00:19:17 0.395
GB76_test OH 20 00:00:57 00:04:36 0.207
GCsky 24 00:01:08 00:02:59 0.383
GB76_dither OH 48 00:02:17 00:05:47 0.396
GB77_dither OH 48 00:02:17 00:05:44 0.399
GB78_dither OH 48 00:02:17 00:05:47 0.396
GB94_dither OH 48 00:02:17 00:05:44 0.399
GB111_dither OH 64 00:03:03 00:13:36 0.224
GB110_dither OH 72 00:03:25 00:08:37 0.398
GB109_dither OH 24 00:01:08 00:02:50 0.402
GB108_dither OH 24 00:01:08 00:02:53 0.396
GB91_dither OH 24 00:01:08 00:02:50 0.402
GB74_dither OH 24 00:01:08 00:02:53 0.396
GB92_dither OH 24 00:01:08 00:02:53 0.396
GB93_dither OH 24 00:01:08 00:02:53 0.396
GB75_dither OH 24 00:01:08 00:02:50 0.402
GB112_dither OH 24 00:01:08 00:02:53 0.396
GB79_dither OH 20 00:00:57 00:02:19 0.410
field13800_test 8 00:00:22 00:03:03 0.125
field13800 40 00:01:54 00:05:06 0.373
field18228 40 00:01:54 00:04:55 0.387
field14139 40 00:01:54 00:04:52 0.391
field14140 40 00:01:54 00:04:50 0.394
field14141 40 00:01:54 00:04:50 0.394
field14142 40 00:01:54 00:04:50 0.394
field14143 40 00:01:54 00:04:50 0.394
field14144 40 00:01:54 00:04:50 0.394
field15089 40 00:01:54 00:04:50 0.394
field15090 40 00:01:54 00:04:47 0.398
field15091 40 00:01:54 00:04:50 0.394
field15092 40 00:01:54 00:04:50 0.394
field15726 40 00:01:54 00:04:50 0.394
field15727 40 00:01:54 00:04:47 0.398
field15728 40 00:01:54 00:04:47 0.398
field15413 40 00:01:54 00:04:47 0.398
field15412 40 00:01:54 00:04:55 0.387
field16366 40 00:01:54 00:04:50 0.394
field16367 40 00:01:54 00:04:50 0.394
field16368 40 00:01:54 00:04:50 0.394
field16370 40 00:01:54 00:04:47 0.398
field16371 40 00:01:54 00:04:52 0.391
field16375 40 00:01:54 00:04:44 0.402
field16376 40 00:01:54 00:04:47 0.398
field16378 40 00:01:54 00:04:50 0.394
field16380 40 00:01:54 00:04:44 0.402
field16381 40 00:01:54 00:04:50 0.394
field16383 40 00:01:54 00:04:50 0.394
field16384 40 00:01:54 00:04:52 0.391
field16386 40 00:01:54 00:04:47 0.398
field15440 40 00:01:54 00:04:47 0.398
field15442 40 00:01:54 00:04:50 0.394
field15444 40 00:01:54 00:04:47 0.398
field15445 40 00:01:54 00:04:50 0.394
field15446 40 00:01:54 00:04:47 0.398
field15447 40 00:01:54 00:04:44 0.402
field15448 40 00:01:54 00:04:47 0.398
field15449 40 00:01:54 00:04:47 0.398
field15450 40 00:01:54 00:04:47 0.398
field15451 40 00:01:54 00:04:47 0.398
field15452 40 00:01:54 00:04:47 0.398
field15453 40 00:01:54 00:04:47 0.398
field15138 40 00:01:54 00:04:50 0.394
field15139 40 00:01:54 00:04:50 0.394
field14824 40 00:01:54 00:04:47 0.398
field14825 40 00:01:54 00:04:50 0.394
field14826 40 00:01:54 00:04:47 0.398
field14827 40 00:01:54 00:04:50 0.394
field14828 40 00:01:54 00:04:50 0.394
field14829 40 00:01:54 00:04:47 0.398
field14830 40 00:01:54 00:04:47 0.398
field14831 40 00:01:54 00:04:47 0.398
field14517 40 00:01:54 00:04:47 0.398
field14518 40 00:01:54 00:04:47 0.398
field14519 40 00:01:54 00:04:47 0.398
field14520 40 00:01:54 00:04:47 0.398
field14521 40 00:01:54 00:04:47 0.398
field14837 40 00:01:54 00:04:50 0.394
field14838 40 00:01:54 00:04:47 0.398
field14839 40 00:01:54 00:04:50 0.394
field14840 40 00:01:54 00:04:47 0.398
field14841 40 00:01:54 00:04:50 0.394
field14842 40 00:01:54 00:04:47 0.398
field14843 40 00:01:54 00:04:50 0.394
field14529 40 00:01:54 00:04:47 0.398
field14530 40 00:01:54 00:04:47 0.398
field15162 40 00:01:54 00:04:50 0.394
field15163 40 00:01:54 00:04:52 0.391
field15164 40 00:01:54 00:04:50 0.394
field15481 40 00:01:54 00:04:47 0.398
field15798 40 00:01:54 00:04:53 0.390
field16115 40 00:01:54 00:04:52 0.391
field16114 40 00:01:54 00:04:50 0.394
field16113 40 00:01:54 00:05:03 0.377










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 16:28:29 35:54:45 0.459

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 2013:03:54 1048:58:28 964:05:25 269:56:43 231:22:54 231:22:54 231:22:54 216:17:57
Observed 1777:09:14
(88.28%)		 1043:56:43
(99.52%)		 733:12:30
(76.05%)		 173:20:39
(64.21%)		 164:45:49
(71.21%)		 266:13:45
(115.06%)		 128:52:15
(55.70%)		 216:17:57
(N/A)
Remaining 235:54:39
(11.72%)		 05:01:44
(0.48%)		 230:52:55
(23.95%)		 96:36:03
(35.79%)		 66:37:04
(28.79%)		 -35:09:09
(0.00%)		 102:30:38
(44.30%)		 00:00:00
(N/A)











Camera status (2025/11/04)



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