PRIME Observation Log 2025/10/07

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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: 2025/10/07
Local observer: Kansuke
Remote observer:
Weather: clear
Comment:
Detector Temperature: 115.99999 +- 0.00258 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:05:31
Morning 05:42:47
Science Observation
(Sun altitude < -10°)
Start 19:27:19
End 05:21:00
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:27:19
End 23:02:18


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:55:58 09:53:40 1.004
GB Time 03:18:08 03:34:58 0.922
Non-GB Time 06:37:50 06:18:42 1.051


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.)
GB 1988 01:34:45 03:18:08 0.478
CALIB 208 00:09:54 00:17:51 0.555
SAAO 1012 00:48:14 01:39:27 0.485
OU 1012 00:48:14 01:39:27 0.485
NASA 1012 00:48:14 01:39:27 0.485
ABC 1012 00:48:14 01:39:27 0.485


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 1940 01:32:28 03:13:13 0.479
SKY 48 00:02:17 00:04:55 0.465
all_sky_grid 4048 03:12:57 06:37:50 0.485
TWILIGHT 208 00:09:54 00:17:51 0.555


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB76_test OH 4 00:00:11 00:02:20 0.081
GCsky 48 00:02:17 00:04:55 0.465
GB76_dither OH 192 00:09:09 00:18:41 0.490
GB77_dither OH 192 00:09:09 00:18:41 0.490
GB78_dither OH 192 00:09:09 00:18:38 0.491
GB94_dither OH 192 00:09:09 00:18:38 0.491
GB111_dither OH 192 00:09:09 00:18:44 0.488
GB110_dither OH 192 00:09:09 00:18:44 0.488
GB109_dither OH 96 00:04:34 00:09:22 0.488
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB74_dither OH 24 00:01:08 00:02:21 0.484
GB92_dither OH 48 00:02:17 00:04:43 0.484
GB93_dither OH 48 00:02:17 00:04:43 0.484
GB75_dither OH 96 00:04:34 00:09:22 0.488
GB112_dither OH 96 00:04:34 00:09:19 0.491
GB79_dither OH 88 00:04:11 00:10:48 0.388
GB60_dither OH 48 00:02:17 00:04:41 0.488
GB95_dither OH 48 00:02:17 00:04:35 0.498
GB113_dither OH 48 00:02:17 00:04:41 0.488
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:21 0.484
GB96_dither OH 24 00:01:08 00:02:21 0.484
GB80_dither OH 24 00:01:08 00:02:21 0.483
field6020_test 8 00:00:22 00:02:06 0.181
field6020 40 00:01:54 00:03:55 0.485
field6783 40 00:01:54 00:03:52 0.491
field7579 40 00:01:54 00:03:52 0.491
field8403 40 00:01:54 00:03:47 0.503
field8404 40 00:01:54 00:04:04 0.469
field12555 40 00:01:54 00:03:50 0.497
field12556 40 00:01:54 00:04:06 0.463
field7879 40 00:01:54 00:04:01 0.474
field7339 40 00:01:54 00:03:52 0.491
field7338 40 00:01:54 00:03:50 0.497
field7077 40 00:01:54 00:03:50 0.497
field7076 40 00:01:54 00:03:50 0.497
field6815 40 00:01:54 00:03:47 0.503
field6816 40 00:01:54 00:03:50 0.497
field6558 40 00:01:54 00:03:47 0.503
field6559 40 00:01:54 00:03:47 0.503
field6560 40 00:01:54 00:03:47 0.503
field6561 40 00:01:54 00:03:55 0.485
field5810 40 00:01:54 00:03:50 0.497
field5811 40 00:01:54 00:03:50 0.497
field5812 40 00:01:54 00:03:47 0.503
field5813 40 00:01:54 00:03:50 0.497
field5814 40 00:01:54 00:03:47 0.503
field5815 40 00:01:54 00:03:47 0.503
field5816 40 00:01:54 00:03:50 0.497
field5818 40 00:01:54 00:03:50 0.497
field5819 40 00:01:54 00:03:47 0.503
field5820 40 00:01:54 00:03:50 0.497
field5821 40 00:01:54 00:03:50 0.497
field5822 40 00:01:54 00:03:55 0.485
field4874 40 00:01:54 00:03:50 0.497
field4877 40 00:01:54 00:03:50 0.497
field4875 40 00:01:54 00:03:47 0.503
field4876 40 00:01:54 00:03:47 0.503
field4651 40 00:01:54 00:03:50 0.497
field4880 40 00:01:54 00:03:50 0.497
field4881 40 00:01:54 00:03:50 0.497
field4882 40 00:01:54 00:03:52 0.491
field4883 40 00:01:54 00:03:50 0.497
field4884 40 00:01:54 00:03:47 0.503
field4885 40 00:01:54 00:03:50 0.497
field4886 40 00:01:54 00:03:50 0.497
field4887 40 00:01:54 00:03:47 0.503
field4888 40 00:01:54 00:03:52 0.491
field4889 40 00:01:54 00:03:52 0.491
field4890 40 00:01:54 00:03:50 0.497
field4663 40 00:01:54 00:03:50 0.497
field4664 40 00:01:54 00:03:50 0.497
field4665 40 00:01:54 00:03:50 0.497
field4666 40 00:01:54 00:03:50 0.497
field4667 40 00:01:54 00:03:55 0.485
field4668 40 00:01:54 00:03:52 0.491
field4669 40 00:01:54 00:03:52 0.491
field4670 40 00:01:54 00:03:50 0.497
field4671 40 00:01:54 00:03:55 0.485
field4672 40 00:01:54 00:03:52 0.491
field4673 40 00:01:54 00:03:52 0.491
field4674 40 00:01:54 00:03:55 0.485
field4675 40 00:01:54 00:03:55 0.485
field4676 40 00:01:54 00:03:50 0.497
field4454 40 00:01:54 00:03:58 0.480
field4905 40 00:01:54 00:04:01 0.474
field4678 40 00:01:54 00:04:04 0.469
field4679 40 00:01:54 00:03:52 0.491
field4457 40 00:01:54 00:03:55 0.485
field4908 40 00:01:54 00:03:50 0.497
field4681 40 00:01:54 00:03:47 0.503
field4459 40 00:01:54 00:03:52 0.491
field4241 40 00:01:54 00:04:04 0.469
field4911 40 00:01:54 00:03:50 0.497
field4684 40 00:01:54 00:03:55 0.485
field4243 40 00:01:54 00:04:06 0.463
field4913 40 00:01:54 00:03:55 0.485
field4244 40 00:01:54 00:03:52 0.491
field4245 40 00:01:54 00:03:58 0.480
field4246 40 00:01:54 00:03:52 0.491
field4247 40 00:01:54 00:03:50 0.497
field4034 40 00:01:54 00:04:06 0.463
field4918 40 00:01:54 00:03:55 0.485
field4468 40 00:01:54 00:03:52 0.491
field4250 40 00:01:54 00:03:50 0.497
field4251 40 00:01:54 00:03:52 0.491
field4252 40 00:01:54 00:03:52 0.491
field4471 40 00:01:54 00:03:52 0.491
field4472 40 00:01:54 00:03:58 0.480
field4473 40 00:01:54 00:03:55 0.485
field4474 40 00:01:54 00:03:50 0.497
field4697 40 00:01:54 00:05:00 0.381
field4925 40 00:01:54 00:04:04 0.469
field4696 40 00:01:54 00:03:55 0.485
field4924 40 00:01:54 00:03:58 0.480
field4695 40 00:01:54 00:03:52 0.491
field4923 40 00:01:54 00:04:01 0.474
field5393 40 00:01:54 00:03:58 0.480
field5394 40 00:01:54 00:04:09 0.458
field5155 40 00:01:54 00:03:55 0.485
field5392 40 00:01:54 00:03:52 0.491
field5391 40 00:01:54 00:04:06 0.463
field5395 40 00:01:54 00:03:58 0.480
field5162 40 00:01:54 00:03:58 0.480
field4703 40 00:01:54 00:05:36 0.340
FLAT OH 208 00:09:54 00:17:51 0.555










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 42:31:32 69:59:35 0.608

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 1987:09:13 1040:28:18 946:40:55 265:04:15 227:12:13 227:12:13 227:12:13 202:04:10
Observed 1619:47:18
(81.51%)		 1001:27:56
(96.25%)		 618:19:22
(65.31%)		 146:55:05
(55.43%)		 137:47:52
(60.65%)		 231:09:44
(101.74%)		 102:26:41
(45.09%)		 202:04:10
(N/A)
Remaining 367:21:54
(18.49%)		 39:00:21
(3.75%)		 328:21:32
(34.69%)		 118:09:10
(44.57%)		 89:24:21
(39.35%)		 -4:02:30
(0.00%)		 124:45:32
(54.91%)		 00:00:00
(N/A)











Camera status (2025/10/07)



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