PRIME Observation Log 2025/10/23

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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: 2025/10/23
Local observer: Kansuke
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 116.16569 +- 0.08972 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:18:09
Morning 05:23:24
Science Observation
(Sun altitude < -10°)
Start 19:40:44
End 05:00:50
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:40:44
End 21:59:23


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:33:14 09:20:05 1.023
GB Time 02:09:21 02:18:38 0.933
Non-GB Time 07:23:53 07:01:26 1.053


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 336 00:16:00 00:43:10 0.371
GB 1032 00:49:11 02:09:21 0.380
NASA 2029 01:36:42 03:19:36 0.485
OU 832 00:39:39 01:43:00 0.385
SAAO 572 00:27:15 01:10:38 0.386
ABC 572 00:27:15 01:10:38 0.386


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 336 00:16:00 00:43:10 0.371
Bulge 1008 00:48:02 02:06:22 0.380
SKY 24 00:01:08 00:02:59 0.383
all_sky_grid 2288 01:49:03 04:42:33 0.386
ToO 1457 01:09:27 02:08:58 0.539
grid_check 260 00:12:23 00:32:22 0.383


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OY 12 00:00:34 00:05:46 0.099
FLAT OY 324 00:15:26 00:37:24 0.413
GB76_test OH 16 00:00:45 00:04:47 0.159
GCsky 24 00:01:08 00:02:59 0.383
GB76_dither OH 96 00:04:34 00:11:34 0.396
GB77_dither OH 96 00:04:34 00:11:28 0.399
GB78_dither OH 96 00:04:34 00:11:31 0.397
GB94_dither OH 96 00:04:34 00:11:31 0.397
GB111_dither OH 96 00:04:34 00:11:34 0.396
GB110_dither OH 96 00:04:34 00:11:31 0.397
GB109_dither OH 48 00:02:17 00:05:44 0.399
GB108_dither OH 24 00:01:08 00:02:53 0.396
GB91_dither OH 24 00:01:08 00:02:53 0.396
GB74_dither OH 24 00:01:08 00:02:56 0.389
GB92_dither OH 24 00:01:08 00:02:50 0.402
GB93_dither OH 24 00:01:08 00:02:53 0.396
GB75_dither OH 48 00:02:17 00:05:47 0.396
GB112_dither OH 52 00:02:28 00:07:42 0.322
GB79_dither OH 24 00:01:08 00:02:53 0.396
GB60_dither OH 24 00:01:08 00:02:50 0.402
GB95_dither OH 24 00:01:08 00:02:50 0.402
GB113_dither OH 48 00:02:17 00:06:26 0.355
GB114_dither OH 24 00:01:08 00:02:50 0.402
GB97_dither OH 4 00:00:11 00:00:50 0.225
field8123_test 4 00:00:11 00:00:53 0.213
field8123 40 00:01:54 00:04:44 0.402
field8124 40 00:01:54 00:04:55 0.387
field10724 40 00:01:54 00:04:58 0.383
field13802 40 00:01:54 00:04:47 0.398
field13803 40 00:01:54 00:05:01 0.380
field7874 40 00:01:54 00:04:50 0.394
field7334 40 00:01:54 00:04:47 0.398
field7070 40 00:01:54 00:04:47 0.398
field6808 40 00:01:54 00:04:44 0.402
field6551 40 00:01:54 00:04:50 0.394
field6047 40 00:01:54 00:04:47 0.398
field5801 40 00:01:54 00:04:50 0.394
field5087 40 00:01:54 00:04:50 0.394
field4412 40 00:01:54 00:04:50 0.394
field3986 40 00:01:54 00:04:44 0.402
field3987 40 00:01:54 00:04:47 0.398
field3988 40 00:01:54 00:04:47 0.398
field3782 40 00:01:54 00:04:47 0.398
field3783 40 00:01:54 00:04:44 0.402
field3784 40 00:01:54 00:04:47 0.398
field3582 40 00:01:54 00:04:44 0.402
field3583 40 00:01:54 00:04:44 0.402
field3584 40 00:01:54 00:04:47 0.398
field3585 40 00:01:54 00:04:52 0.391
field3586 40 00:01:54 00:06:31 0.293
field1082_test 4 00:00:11 00:00:50 0.225
field10829 1605 01:16:30 02:24:21 0.530
field10829_test 28 00:01:20 00:07:45 0.172
field1082 80 00:03:48 00:08:22 0.455
field12039_test 4 00:00:11 00:00:45 0.253
field12039 40 00:01:54 00:06:00 0.318
field12040 40 00:01:54 00:04:47 0.398
field12041 40 00:01:54 00:04:47 0.398
field13280 40 00:01:54 00:04:50 0.394
field13281 40 00:01:54 00:04:47 0.398
field12044 40 00:01:54 00:04:47 0.398
field12045 40 00:01:54 00:04:47 0.398
field12046 40 00:01:54 00:04:47 0.398
field12047 40 00:01:54 00:04:50 0.394
field13912 40 00:01:54 00:06:36 0.288
field2509 40 00:01:54 00:04:50 0.394
field2508 40 00:01:54 00:04:50 0.394
field2680 40 00:01:54 00:04:50 0.394
field2679 40 00:01:54 00:04:50 0.394
field2857 40 00:01:54 00:04:55 0.387
field2342 40 00:01:54 00:04:47 0.398
field2343 40 00:01:54 00:04:47 0.398
field2344 40 00:01:54 00:05:12 0.366
field4910 40 00:01:54 00:04:50 0.394
field5377 40 00:01:54 00:04:44 0.402
field5376 40 00:01:54 00:04:52 0.391
field6620 40 00:01:54 00:04:44 0.402
field6619 40 00:01:54 00:04:50 0.394
field6883 40 00:01:54 00:04:47 0.398
field6878 40 00:01:54 00:04:47 0.398
field6879 40 00:01:54 00:04:47 0.398
field6880 40 00:01:54 00:04:47 0.398
field6881 40 00:01:54 00:04:50 0.394
field7145 40 00:01:54 00:04:47 0.398
field7146 40 00:01:54 00:04:47 0.398
field7147 40 00:01:54 00:04:47 0.398
field7148 40 00:01:54 00:06:22 0.299










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 132:18:51 223:32:49 0.592

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 2000:09:58 1047:32:06 952:37:51 266:44:12 228:37:53 228:37:53 228:37:53 211:33:13
Observed 1709:34:40
(85.47%)		 1031:48:47
(98.50%)		 677:45:52
(71.15%)		 159:35:17
(59.83%)		 151:00:26
(66.05%)		 252:03:14
(110.24%)		 115:06:53
(50.35%)		 211:33:13
(N/A)
Remaining 290:35:18
(14.53%)		 15:43:18
(1.50%)		 274:51:59
(28.85%)		 107:08:54
(40.17%)		 77:37:26
(33.95%)		 -24:34:39
(0.00%)		 113:30:59
(49.65%)		 00:00:00
(N/A)











Camera status (2025/10/23)



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