PRIME Observation Log 2025/10/02

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Raw Log (Time is in SA time)
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Observation Log (Time is in UT)

Date: 2025/10/02
Local observer: None
Remote observer: Asahi, Shuma, Takuto
Weather: Clear, Cloudy
Comment:
Detector Temperature: 115.99995 +- 0.00112 K
ImageAcquisitionErrors occurred 2 times @
2025-10-02 20:48:13 SAT
2025-10-03 05:42:10 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:01:59
Morning 05:49:20
Science Observation
(Sun altitude < -10°)
Start 19:23:36
End 05:27:43
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:23:36
End 23:21:58


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:51:18 10:04:06 0.681
GB Time 03:57:24 03:58:21 0.996
Non-GB Time 02:53:53 06:05:45 0.475


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 1145 00:54:34 01:54:26 0.477
GB 1924 01:31:42 03:57:24 0.386
NASA 535 00:25:30 00:58:26 0.436
SAAO 367 00:17:29 00:38:29 0.455
OU 367 00:17:29 00:38:29 0.455
ABC 367 00:17:29 00:38:29 0.455


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 164 00:07:49 00:18:06 0.432
Bulge 1876 01:29:25 03:50:23 0.388
SKY 48 00:02:17 00:07:01 0.326
all_sky_grid 1468 01:09:58 02:33:56 0.455
ToO 168 00:08:00 00:19:57 0.401
calibration 981 00:46:45 01:36:20 0.485


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OY 4 00:00:11 00:02:45 0.069
FLAT OY 160 00:07:37 00:15:20 0.497
GB60_test OJ 28 00:01:20 00:13:09 0.101
GB60_dither OJ 48 00:02:17 00:05:00 0.456
GB80_dither OJ 48 00:02:17 00:04:55 0.465
GB97_dither OJ 48 00:02:17 00:04:49 0.474
GB114_dither OJ 48 00:02:17 00:05:14 0.437
GB113_dither OJ 48 00:02:17 00:05:04 0.451
GB96_dither OJ 48 00:02:17 00:05:09 0.444
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:05:20 0.429
GB95_dither OJ 48 00:02:17 00:04:43 0.484
GB112_dither OJ 48 00:02:17 00:04:46 0.479
GB111_dither OJ 48 00:02:17 00:04:40 0.489
GB94_dither OJ 48 00:02:17 00:07:52 0.291
GB77_test OJ 20 00:00:57 00:09:47 0.097
GB77_dither OJ 48 00:02:17 00:04:49 0.474
GB76_dither OJ 48 00:02:17 00:06:25 0.356
GB93_dither OJ 48 00:02:17 00:04:48 0.475
GB110_dither OJ 48 00:02:17 00:05:04 0.451
GB109_dither OJ 48 00:02:17 00:05:09 0.444
GB92_dither OJ 48 00:02:17 00:04:55 0.465
GB75_dither OJ 48 00:02:17 00:05:00 0.456
GB74_dither OJ 48 00:02:17 00:05:00 0.456
GB91_dither OJ 48 00:02:17 00:04:55 0.465
GB108_dither OJ 48 00:02:17 00:04:41 0.488
GCsky 48 00:02:17 00:07:01 0.326
GB76_test OH 28 00:01:20 00:16:51 0.079
GB76_dither OH 72 00:03:25 00:07:00 0.490
GB77_dither OH 72 00:03:25 00:06:57 0.493
GB78_dither OH 72 00:03:25 00:06:57 0.493
GB94_dither OH 96 00:04:34 00:09:16 0.493
GB111_dither OH 96 00:04:34 00:09:22 0.488
GB110_dither OH 96 00:04:34 00:09:08 0.501
GB109_dither OH 48 00:02:17 00:04:41 0.488
GB92_dither OH 24 00:01:08 00:02:19 0.493
GB93_dither OH 24 00:01:08 00:02:19 0.493
GB75_dither OH 24 00:01:08 00:02:16 0.503
GB112_dither OH 48 00:02:17 00:10:14 0.223
GB79_dither OH 24 00:01:08 00:02:21 0.484
GB60_dither OH 24 00:01:08 00:02:19 0.493
GB95_dither OH 24 00:01:08 00:02:19 0.493
field6525_test 28 00:01:20 00:13:54 0.096
field6525 40 00:01:54 00:03:50 0.497
field7044 40 00:01:54 00:03:50 0.497
field7045 40 00:01:54 00:03:55 0.485
field8405 40 00:01:54 00:03:55 0.485
field10132 40 00:01:54 00:03:58 0.480
field12248 40 00:01:54 00:03:50 0.497
field12249 40 00:01:54 00:03:55 0.485
field13493 40 00:01:54 00:04:01 0.474
field11057 40 00:01:54 00:03:55 0.485
field11062 40 00:01:54 00:03:55 0.485
field11066 40 00:01:54 00:03:50 0.497
field11067 40 00:01:54 00:03:52 0.491
field11068 40 00:01:54 00:03:50 0.497
field11069 40 00:01:54 00:03:50 0.497
field11070 40 00:01:54 00:03:52 0.491
field11071 40 00:01:54 00:03:50 0.497
field11072 40 00:01:54 00:03:50 0.497
field11073 40 00:01:54 00:03:58 0.480
field11074 40 00:01:54 00:03:55 0.485
field11075 40 00:01:54 00:03:50 0.497
field11076 40 00:01:54 00:03:50 0.497
field11077 40 00:01:54 00:03:52 0.491
field11078 40 00:01:54 00:03:52 0.491
field11079 40 00:01:54 00:03:52 0.491
field11080 40 00:01:54 00:04:23 0.434
field7901 40 00:01:54 00:03:50 0.497
field7902 40 00:01:54 00:03:47 0.503
field7903 40 00:01:54 00:03:50 0.497
field8175 40 00:01:54 00:03:47 0.503
field8174 40 00:01:54 00:03:52 0.491
field8173 40 00:01:54 00:03:50 0.497
field7900 40 00:01:54 00:03:50 0.497
field7899 40 00:01:54 00:03:52 0.491
field7101 40 00:01:54 00:03:47 0.503
field7102 40 00:01:54 00:03:47 0.503
field7103 40 00:01:54 00:04:05 0.465
field14176_test 8 00:00:22 00:04:12 0.090
field14176 40 00:01:54 00:03:55 0.485
field14491 40 00:01:54 00:03:50 0.497
field14177 40 00:01:54 00:03:52 0.491
field14492 40 00:01:54 00:04:05 0.465
reset 40 00:01:54 00:05:46 0.330
Dark 421 00:20:04 00:26:01 0.771
superbias 480 00:22:52 00:59:55 0.382
LSS_H 40 00:01:54 00:04:37 0.412










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 06:51:18 20:10:17 0.340

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 1976:23:39 1034:13:46 942:09:53 263:48:22 226:07:10 226:07:10 226:07:10 196:05:27
Observed 1584:07:05
(80.15%)		 985:52:32
(95.32%)		 598:14:32
(63.50%)		 142:32:27
(54.03%)		 133:25:14
(59.00%)		 224:12:46
(99.16%)		 98:04:03
(43.37%)		 196:05:27
(N/A)
Remaining 392:16:33
(19.85%)		 48:21:13
(4.68%)		 343:55:20
(36.50%)		 121:15:54
(45.97%)		 92:41:55
(41.00%)		 01:54:24
(0.84%)		 128:03:06
(56.63%)		 00:00:00
(N/A)











Camera status (2025/10/02)



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