PRIME Observation Log 2025/10/15

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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: 2025/10/15
Local observer: Kansuke
Remote observer:
Weather: clear
Comment:
Detector Temperature: 116.00002 +- 0.00084 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:11:35
Morning 05:32:44
Science Observation
(Sun altitude < -10°)
Start 19:33:43
End 05:10:36
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:33:43
End 22:30:51


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:35:12 09:36:52 0.997
GB Time 02:40:47 02:57:07 0.908
Non-GB Time 06:54:24 06:39:45 1.037


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 400 00:19:04 00:46:47 0.407
GB 1300 01:01:58 02:40:47 0.385
SAAO 853 00:40:39 01:43:36 0.392
OU 853 00:40:39 01:43:36 0.392
NASA 853 00:40:39 01:43:36 0.392
ABC 853 00:40:39 01:43:36 0.392


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 400 00:19:04 00:46:47 0.407
Bulge 1276 01:00:49 02:37:40 0.386
SKY 24 00:01:08 00:03:07 0.366
all_sky_grid 3412 02:42:38 06:54:24 0.392


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OJ 400 00:19:04 00:46:47 0.407
GB80_dither_test OJ 16 00:00:45 00:04:33 0.167
GCsky 24 00:01:08 00:03:07 0.366
GB80_dither OJ 48 00:02:17 00:05:44 0.399
GB97_dither OJ 48 00:02:17 00:05:44 0.399
GB114_dither OJ 48 00:02:17 00:05:41 0.402
GB113_dither OJ 48 00:02:17 00:05:44 0.399
GB96_dither OJ 48 00:02:17 00:05:47 0.396
GB79_dither OJ 48 00:02:17 00:05:49 0.392
GB78_dither OJ 48 00:02:17 00:05:41 0.402
GB95_dither OJ 48 00:02:17 00:05:44 0.399
GB112_dither OJ 48 00:02:17 00:05:44 0.399
GB111_dither OJ 48 00:02:17 00:05:47 0.396
GB94_dither OJ 48 00:02:17 00:05:44 0.399
GB77_dither OJ 48 00:02:17 00:05:44 0.399
GB60_dither OJ 48 00:02:17 00:05:47 0.396
GB76_dither OJ 48 00:02:17 00:05:41 0.402
GB93_dither OJ 48 00:02:17 00:05:44 0.399
GB110_dither OJ 48 00:02:17 00:05:41 0.402
GB109_dither OJ 48 00:02:17 00:05:44 0.399
GB92_dither OJ 48 00:02:17 00:05:41 0.402
GB75_dither OJ 48 00:02:17 00:05:41 0.402
GB74_dither OJ 48 00:02:17 00:05:44 0.399
GB91_dither OJ 48 00:02:17 00:05:41 0.402
GB108_dither OJ 48 00:02:17 00:06:20 0.361
GB76_dither OH 24 00:01:08 00:02:56 0.389
GB77_dither OH 24 00:01:08 00:02:53 0.396
GB78_dither OH 24 00:01:08 00:02:53 0.396
GB94_dither OH 24 00:01:08 00:02:53 0.396
GB111_dither OH 24 00:01:08 00:02:53 0.396
GB110_dither OH 24 00:01:08 00:02:56 0.389
GB109_dither OH 24 00:01:08 00:02:53 0.396
GB108_dither OH 24 00:01:08 00:02:53 0.396
GB91_dither OH 12 00:00:34 00:03:09 0.182
field6524_test 12 00:00:34 00:02:29 0.229
field6524 40 00:01:54 00:04:52 0.391
field7577 40 00:01:54 00:04:55 0.387
field9835 40 00:01:54 00:04:47 0.398
field10131 40 00:01:54 00:04:52 0.391
field12245 40 00:01:54 00:04:44 0.402
field12246 40 00:01:54 00:04:44 0.402
field12247 40 00:01:54 00:05:01 0.380
field7337 40 00:01:54 00:04:50 0.394
field7073 40 00:01:54 00:04:50 0.394
field6813 40 00:01:54 00:04:47 0.398
field6812 40 00:01:54 00:04:47 0.398
field6555 40 00:01:54 00:04:47 0.398
field6556 40 00:01:54 00:04:44 0.402
field6557 40 00:01:54 00:04:52 0.391
field6055 40 00:01:54 00:04:50 0.394
field5807 40 00:01:54 00:04:47 0.398
field5808 40 00:01:54 00:04:47 0.398
field5809 40 00:01:54 00:04:55 0.387
field4865 40 00:01:54 00:04:50 0.394
field4866 40 00:01:54 00:04:50 0.394
field4867 40 00:01:54 00:04:50 0.394
field4868 40 00:01:54 00:04:47 0.398
field4869 40 00:01:54 00:04:44 0.402
field4870 40 00:01:54 00:04:47 0.398
field4871 40 00:01:54 00:04:47 0.398
field4872 40 00:01:54 00:04:44 0.402
field4873 40 00:01:54 00:04:47 0.398
field4645 40 00:01:54 00:04:47 0.398
field4646 40 00:01:54 00:04:47 0.398
field4647 40 00:01:54 00:04:50 0.394
field4878 40 00:01:54 00:04:50 0.394
field4648 40 00:01:54 00:04:47 0.398
field4879 40 00:01:54 00:04:47 0.398
field4652 40 00:01:54 00:04:47 0.398
field4653 40 00:01:54 00:04:47 0.398
field4654 40 00:01:54 00:04:44 0.402
field4655 40 00:01:54 00:04:47 0.398
field4656 40 00:01:54 00:04:50 0.394
field4657 40 00:01:54 00:04:47 0.398
field4658 40 00:01:54 00:04:50 0.394
field4436 40 00:01:54 00:04:44 0.402
field4437 40 00:01:54 00:04:47 0.398
field4438 40 00:01:54 00:04:47 0.398
field4439 40 00:01:54 00:04:50 0.394
field4440 40 00:01:54 00:04:47 0.398
field4441 40 00:01:54 00:04:47 0.398
field4442 40 00:01:54 00:04:50 0.394
field4443 40 00:01:54 00:04:47 0.398
field4894 40 00:01:54 00:04:50 0.394
field4444 40 00:01:54 00:04:47 0.398
field4445 40 00:01:54 00:04:50 0.394
field4446 40 00:01:54 00:04:50 0.394
field4447 40 00:01:54 00:05:01 0.380
field4898 40 00:01:54 00:04:50 0.394
field4448 40 00:01:54 00:04:52 0.391
field4449 40 00:01:54 00:04:52 0.391
field4450 40 00:01:54 00:04:55 0.387
field4451 40 00:01:54 00:04:47 0.398
field4902 40 00:01:54 00:04:52 0.391
field4452 40 00:01:54 00:04:55 0.387
field4453 40 00:01:54 00:04:50 0.394
field4904 40 00:01:54 00:04:44 0.402
field4677 40 00:01:54 00:04:52 0.391
field4455 40 00:01:54 00:04:50 0.394
field4456 40 00:01:54 00:04:50 0.394
field4680 40 00:01:54 00:04:58 0.383
field4239 40 00:01:54 00:04:50 0.394
field4909 40 00:01:54 00:04:50 0.394
field4682 40 00:01:54 00:04:52 0.391
field4460 40 00:01:54 00:04:47 0.398
field4242 40 00:01:54 00:04:50 0.394
field4912 40 00:01:54 00:04:47 0.398
field4462 40 00:01:54 00:05:06 0.373
field4463 40 00:01:54 00:04:50 0.394
field4464 40 00:01:54 00:04:50 0.394
field4032 40 00:01:54 00:04:50 0.394
field4033 40 00:01:54 00:04:52 0.391
field4917 40 00:01:54 00:04:52 0.391
field4467 40 00:01:54 00:04:50 0.394
field4249 40 00:01:54 00:04:50 0.394
field4691 40 00:01:54 00:04:52 0.391
field3828 40 00:01:54 00:04:47 0.398
field3829 40 00:01:54 00:04:47 0.398
field3830 40 00:01:54 00:04:52 0.391
field3831 40 00:01:54 00:06:05 0.313










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 75:53:54 147:53:27 0.513

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 1981:34:41 1043:11:37 938:23:03 262:44:51 225:12:44 225:12:44 225:12:44 207:31:41
Observed 1653:09:42
(83.43%)		 1017:06:11
(97.50%)		 636:03:31
(67.78%)		 150:24:18
(57.24%)		 141:17:05
(62.73%)		 238:26:12
(105.87%)		 105:55:54
(47.04%)		 207:31:41
(N/A)
Remaining 328:24:58
(16.57%)		 26:05:26
(2.50%)		 302:19:32
(32.22%)		 112:20:33
(42.76%)		 83:55:38
(37.27%)		 -14:46:32
(0.00%)		 119:16:49
(52.96%)		 00:00:00
(N/A)











Camera status (2025/10/15)



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