PRIME Observation Log 2025/10/03

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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: 2025/10/03
Local observer: None
Remote observer: Ryo Ogawa, Takuto
Weather: Clear
Comment:
Detector Temperature: 116.00005 +- 0.00194 K
ImageAcquisitionErrors occurred 2 times @
2025-10-04 04:17:44 SAT
2025-10-04 05:38:13 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:02:40
Morning 05:48:01
Science Observation
(Sun altitude < -10°)
Start 19:24:20
End 05:26:22
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:24:20
End 23:18:02


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 08:07:17 10:02:01 0.809
GB Time 03:38:23 03:53:41 0.935
Non-GB Time 04:28:54 06:08:20 0.730


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 675 00:32:10 01:07:03 0.480
GB 1960 01:33:25 03:38:23 0.428
SAAO 654 00:31:10 01:07:13 0.464
OU 654 00:31:10 01:07:13 0.464
NASA 654 00:31:10 01:07:13 0.464
ABC 654 00:31:10 01:07:13 0.464


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 124 00:05:54 00:19:09 0.308
Bulge 1912 01:31:08 03:32:20 0.429
SKY 48 00:02:17 00:06:02 0.379
all_sky_grid 2616 02:04:41 04:28:54 0.464
calibration 551 00:26:15 00:47:54 0.548


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 4 00:00:11 00:01:30 0.127
FLAT OJ 120 00:05:43 00:17:39 0.324
GB76_dither_test OH 64 00:03:03 00:18:09 0.168
GCsky 48 00:02:17 00:06:02 0.379
GB76_test OH 28 00:01:20 00:04:41 0.284
GB76_dither OH 168 00:08:00 00:16:57 0.472
GB77_dither OH 168 00:08:00 00:16:44 0.478
GB78_dither OH 168 00:08:00 00:17:05 0.469
GB94_dither OH 168 00:08:00 00:17:04 0.469
GB111_dither OH 180 00:08:34 00:21:09 0.405
GB110_dither OH 196 00:09:20 00:20:22 0.459
GB109_dither OH 120 00:05:43 00:12:14 0.467
GB108_dither OH 48 00:02:17 00:04:57 0.461
GB91_dither OH 48 00:02:17 00:04:57 0.461
GB74_dither OH 48 00:02:17 00:04:55 0.465
GB92_dither OH 48 00:02:17 00:04:49 0.474
GB93_dither OH 48 00:02:17 00:04:54 0.466
GB75_dither OH 76 00:03:37 00:09:21 0.387
GB112_dither OH 72 00:03:25 00:07:24 0.464
GB79_dither OH 72 00:03:25 00:07:26 0.461
GB60_dither OH 48 00:02:17 00:04:52 0.470
GB95_dither OH 24 00:01:08 00:02:19 0.493
GB113_dither OH 24 00:01:08 00:02:18 0.495
GB114_dither OH 24 00:01:08 00:02:28 0.463
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB80_dither OH 24 00:01:08 00:02:27 0.465
field6271_test 16 00:00:45 00:05:03 0.151
field6271 40 00:01:54 00:04:01 0.474
field7309 40 00:01:54 00:03:50 0.497
field7310 40 00:01:54 00:04:06 0.463
field9836 40 00:01:54 00:03:50 0.497
field9837 40 00:01:54 00:04:15 0.448
field12867 40 00:01:54 00:04:12 0.453
field12868 40 00:01:54 00:04:01 0.474
field12869 40 00:01:54 00:04:09 0.458
field12870 40 00:01:54 00:04:26 0.429
field7341 40 00:01:54 00:04:09 0.458
field7340 40 00:01:54 00:04:04 0.469
field7080 40 00:01:54 00:04:09 0.458
field7079 40 00:01:54 00:03:52 0.493
field7078 40 00:01:54 00:04:15 0.447
field6817 40 00:01:54 00:04:12 0.453
field6818 40 00:01:54 00:03:50 0.497
field6819 40 00:01:54 00:03:50 0.497
field6562 40 00:01:54 00:04:03 0.470
field6563 40 00:01:54 00:03:56 0.484
field6564 40 00:01:54 00:03:47 0.503
field6565 40 00:01:54 00:04:01 0.474
field6566 40 00:01:54 00:03:50 0.497
field6567 40 00:01:54 00:04:01 0.474
field6568 40 00:01:54 00:03:58 0.480
field6569 40 00:01:54 00:04:01 0.474
field6570 40 00:01:54 00:03:58 0.480
field6571 40 00:01:54 00:03:50 0.497
field6572 40 00:01:54 00:03:50 0.497
field6573 40 00:01:54 00:04:20 0.438
field6574 40 00:01:54 00:04:04 0.469
field7093 40 00:01:54 00:03:47 0.503
field7094 40 00:01:54 00:04:01 0.474
field5823 40 00:01:54 00:03:58 0.480
field5824 40 00:01:54 00:03:50 0.497
field5825 40 00:01:54 00:04:01 0.474
field5826 40 00:01:54 00:04:15 0.448
field5827 40 00:01:54 00:03:52 0.491
field5828 40 00:01:54 00:04:06 0.463
field5829 40 00:01:54 00:03:55 0.485
field5830 40 00:01:54 00:04:23 0.434
field5831 40 00:01:54 00:03:58 0.480
field5832 40 00:01:54 00:03:50 0.497
field5833 40 00:01:54 00:03:58 0.480
field5834 40 00:01:54 00:03:55 0.487
field5835 40 00:01:54 00:04:21 0.438
field5836 40 00:01:54 00:04:28 0.426
field5837 40 00:01:54 00:04:21 0.437
field5838 40 00:01:54 00:04:04 0.469
field5839 40 00:01:54 00:04:03 0.470
field5840 40 00:01:54 00:04:13 0.452
field5841 40 00:01:54 00:03:58 0.480
field5842 40 00:01:54 00:03:55 0.485
field5843 40 00:01:54 00:03:58 0.480
field5844 40 00:01:54 00:04:01 0.474
field5845 40 00:01:54 00:03:52 0.491
field5846 40 00:01:54 00:03:55 0.485
field5847 40 00:01:54 00:04:12 0.453
field5848 40 00:01:54 00:03:58 0.480
field5849 40 00:01:54 00:04:14 0.450
field5850 40 00:01:54 00:04:33 0.419
field6348 40 00:01:54 00:04:05 0.466
field6349 40 00:01:54 00:04:19 0.441
field6350 40 00:01:54 00:03:52 0.491
field6351 40 00:01:54 00:04:06 0.463
field6352 40 00:01:54 00:04:17 0.445
reset 40 00:01:54 00:06:00 0.318
LSS_H 120 00:05:43 00:19:51 0.288
NLC_H 351 00:16:43 00:17:30 0.956
LSS_J 40 00:01:54 00:04:32 0.420










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 14:58:36 30:12:19 0.496

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 1979:29:55 1035:55:18 943:34:37 264:12:05 226:27:30 226:27:30 226:27:30 197:12:31
Observed 1592:14:22
(80.44%)		 989:30:55
(95.52%)		 602:43:26
(63.88%)		 143:39:41
(54.38%)		 134:32:28
(59.41%)		 225:19:59
(99.50%)		 99:11:17
(43.80%)		 197:12:31
(N/A)
Remaining 387:15:33
(19.56%)		 46:24:22
(4.48%)		 340:51:10
(36.12%)		 120:32:24
(45.62%)		 91:55:02
(40.59%)		 01:07:30
(0.50%)		 127:16:13
(56.20%)		 00:00:00
(N/A)











Camera status (2025/10/03)



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