PRIME Observation Log 2025/08/29

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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: 2025/08/29
Local observer: Asahi
Remote observer:
Weather: clear
Comment:
Detector Temperature: 113.99999 +- 0.00192 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:40:39
Morning 06:33:53
Science Observation
(Sun altitude < -10°)
Start 19:02:05
End 06:12:29
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:02:05
End 01:35:39


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:40:36 11:10:23 1.045
GB Time 06:14:59 06:33:34 0.953
Non-GB Time 05:25:37 04:36:49 1.176


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 244 00:11:37 00:31:38 0.368
GB 3420 02:43:01 06:14:59 0.435
SAAO 1576 01:15:07 02:15:16 0.555
OU 653 00:31:07 01:03:26 0.491
NASA 653 00:31:07 01:03:26 0.491
ABC 653 00:31:07 01:03:26 0.491


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 244 00:11:37 00:31:38 0.368
Bulge 3372 02:40:43 06:09:53 0.435
SKY 48 00:02:17 00:05:06 0.448
all_sky_grid 3320 02:38:15 04:56:54 0.533
ToO 215 00:10:14 00:28:42 0.357


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 4 00:00:11 00:10:11 0.019
FLAT OH 240 00:11:26 00:21:26 0.533
GB76_test OH 80 00:03:48 00:33:07 0.115
GB73_dither OH 48 00:02:17 00:04:38 0.493
GB72_dither OH 48 00:02:17 00:04:43 0.484
GB71_dither OH 48 00:02:17 00:04:43 0.484
GB88_dither OH 48 00:02:17 00:04:35 0.498
GB89_dither OH 48 00:02:17 00:09:38 0.237
GB73_test OH 12 00:00:34 00:06:44 0.085
GB90_dither OH 24 00:01:08 00:03:23 0.337
GB76_dither OH 192 00:09:09 00:19:32 0.468
GB77_dither OH 192 00:09:09 00:19:04 0.480
GB78_dither OH 192 00:09:09 00:18:50 0.486
GB94_dither OH 192 00:09:09 00:18:55 0.484
GB111_dither OH 192 00:09:09 00:19:09 0.478
GB110_dither OH 192 00:09:09 00:18:55 0.484
GB109_dither OH 96 00:04:34 00:09:27 0.484
GB108_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:21 0.484
GB74_dither OH 24 00:01:08 00:02:24 0.474
GB92_dither OH 48 00:02:17 00:04:46 0.479
GB93_dither OH 48 00:02:17 00:04:43 0.484
GB75_dither OH 96 00:04:34 00:09:27 0.484
GB112_dither OH 96 00:04:34 00:09:22 0.488
GB79_dither OH 96 00:04:34 00:09:50 0.465
GB60_dither OH 48 00:02:17 00:04:43 0.484
GB95_dither OH 48 00:02:17 00:04:41 0.488
GB113_dither OH 48 00:02:17 00:05:25 0.421
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB96_dither OH 24 00:01:08 00:02:21 0.484
GB80_dither OH 24 00:01:08 00:02:21 0.484
GCsky 48 00:02:17 00:05:06 0.448
GB60_test OY 16 00:00:45 00:02:46 0.275
GB60_dither OY 48 00:02:17 00:04:49 0.474
GB80_dither OY 48 00:02:17 00:04:35 0.498
GB79_dither OY 48 00:02:17 00:04:35 0.498
GB78_dither OY 48 00:02:17 00:04:38 0.493
GB77_dither OY 48 00:02:17 00:04:38 0.493
GB76_dither OY 48 00:02:17 00:04:32 0.503
GB75_dither OY 48 00:02:17 00:04:38 0.493
GB74_dither OY 48 00:02:17 00:04:43 0.484
GB97_dither OY 48 00:02:17 00:04:38 0.493
GB96_dither OY 48 00:02:17 00:04:32 0.503
GB95_dither OY 48 00:02:17 00:04:32 0.503
GB94_dither OY 48 00:02:17 00:04:38 0.493
GB93_dither OY 48 00:02:17 00:04:35 0.498
GB92_dither OY 48 00:02:17 00:04:35 0.498
GB91_dither OY 48 00:02:17 00:04:41 0.488
GB114_dither OY 48 00:02:17 00:04:38 0.493
GB113_dither OY 48 00:02:17 00:04:32 0.503
GB112_dither OY 48 00:02:17 00:04:32 0.503
GB111_dither OY 48 00:02:17 00:04:35 0.498
GB110_dither OY 48 00:02:17 00:04:32 0.503
GB109_dither OY 48 00:02:17 00:04:35 0.498
GB108_dither OY 48 00:02:17 00:05:09 0.444
field5055_test 24 00:01:08 00:03:51 0.296
field5055 684 00:32:36 00:39:15 0.830
field1811_test 65 00:03:05 00:10:26 0.297
field1811 150 00:07:09 00:18:15 0.392
field14462_test 12 00:00:34 00:02:21 0.243
field14462 40 00:01:54 00:03:47 0.503
field14463 40 00:01:54 00:03:52 0.491
field14464 40 00:01:54 00:03:52 0.491
field14465 40 00:01:54 00:03:55 0.485
field14466 40 00:01:54 00:03:52 0.491
field14467 40 00:01:54 00:03:52 0.491
field14468 40 00:01:54 00:03:50 0.497
field14469 40 00:01:54 00:03:50 0.497
field14470 40 00:01:54 00:03:47 0.503
field14471 40 00:01:54 00:03:47 0.503
field14472 40 00:01:54 00:03:47 0.503
field14473 40 00:01:54 00:03:55 0.485
field14474 40 00:01:54 00:03:52 0.491
field14475 40 00:01:54 00:03:50 0.497
field14476 40 00:01:54 00:03:50 0.497
field14477 40 00:01:54 00:03:52 0.491
field14478 40 00:01:54 00:03:50 0.497
field14479 40 00:01:54 00:03:50 0.497
field14480 40 00:01:54 00:03:52 0.491
field14481 40 00:01:54 00:03:50 0.497
field14482 40 00:01:54 00:03:50 0.497
field14483 40 00:01:54 00:03:52 0.491
field14484 40 00:01:54 00:03:52 0.491
field14485 40 00:01:54 00:03:52 0.491
field14486 40 00:01:54 00:03:52 0.491
field14487 40 00:01:54 00:03:47 0.503
field14488 40 00:01:54 00:03:47 0.503
field14489 40 00:01:54 00:03:47 0.503
field14490 40 00:01:54 00:03:50 0.497
field14491 40 00:01:54 00:03:50 0.497
field14492 40 00:01:54 00:03:52 0.491
field14493 40 00:01:54 00:03:52 0.491
field14494 40 00:01:54 00:03:52 0.491
field14495 40 00:01:54 00:03:50 0.497
field14496 40 00:01:54 00:03:52 0.491
field14497 40 00:01:54 00:03:47 0.504
field14498 40 00:01:54 00:04:09 0.458
field14793 40 00:01:54 00:03:47 0.503
field14794 40 00:01:54 00:03:47 0.503
field14795 40 00:01:54 00:03:47 0.503
field14796 40 00:01:54 00:03:47 0.503
field14797 40 00:01:54 00:03:47 0.503
field14798 40 00:01:54 00:03:47 0.503
field14799 40 00:01:54 00:03:50 0.497
field14800 40 00:01:54 00:03:50 0.497
field14801 40 00:01:54 00:03:49 0.497
field14802 40 00:01:54 00:03:55 0.485
field14803 40 00:01:54 00:03:52 0.491
field14804 40 00:01:54 00:03:50 0.497
field14805 40 00:01:54 00:03:47 0.503
field14806 40 00:01:54 00:03:47 0.503
field14807 40 00:01:54 00:03:47 0.503
field14808 40 00:01:54 00:03:50 0.497
field14809 40 00:01:54 00:03:50 0.497
field14810 40 00:01:54 00:03:50 0.497
field14811 40 00:01:54 00:03:50 0.497
field14812 40 00:01:54 00:03:50 0.497
field14813 40 00:01:54 00:03:50 0.497
field14814 40 00:01:54 00:03:47 0.503
field14815 40 00:01:54 00:03:55 0.485
field14816 40 00:01:54 00:03:50 0.497
field14817 40 00:01:54 00:03:55 0.486
field14818 40 00:01:54 00:03:52 0.491
field14819 40 00:01:54 00:03:52 0.491
field14820 40 00:01:54 00:05:14 0.364










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 209:17:37 335:06:36 0.625

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 1938:37:11 1007:03:48 931:33:23 260:50:08 223:34:24 223:34:24 223:34:24 179:05:18
Observed 1365:49:29
(70.45%)		 869:43:05
(86.36%)		 496:06:23
(53.26%)		 111:53:07
(42.89%)		 110:49:28
(49.57%)		 197:55:30
(88.53%)		 75:28:17
(33.76%)		 179:05:18
(N/A)
Remaining 572:47:41
(29.55%)		 137:20:42
(13.64%)		 435:26:59
(46.74%)		 148:57:01
(57.11%)		 112:44:56
(50.43%)		 25:38:53
(11.47%)		 148:06:07
(66.24%)		 00:00:00
(N/A)











Camera status (2025/08/29)



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