PRIME Observation Log 2025/06/01

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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: 2025/06/01
Local observer: Ryusei
Remote observer:
Weather: clear
Comment:
Detector Temperature: 113.99989 +- 0.00138 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:03:29
Morning 07:06:07
Science Observation
(Sun altitude < -10°)
Start 18:26:22
End 06:43:12
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:56:17
End 06:43:12


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:45:36 12:16:49 1.039
GB Time 11:01:20 10:46:54 1.022
Non-GB Time 01:44:16 01:29:54 1.160


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 288 00:13:43 00:36:38 0.375
GB 6404 05:05:15 11:01:20 0.462
SAAO 214 00:10:12 00:26:04 0.391
OU 214 00:10:12 00:26:04 0.391
NASA 214 00:10:12 00:26:04 0.391
ABC 214 00:10:12 00:26:04 0.391


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 288 00:13:43 00:36:38 0.375
all_sky_grid 856 00:40:48 01:44:16 0.391
Bulge 6136 04:52:28 10:29:47 0.464
SKY 268 00:12:46 00:31:32 0.405


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test NJ 8 00:00:22 00:02:03 0.185
FLAT NJ 280 00:13:20 00:34:34 0.386
field12729_test 16 00:00:45 00:19:55 0.038
field12729 40 00:01:54 00:03:52 0.491
field13038 40 00:01:54 00:03:58 0.480
field13039 40 00:01:54 00:03:50 0.497
field13349 40 00:01:54 00:03:52 0.491
field13350 40 00:01:54 00:04:01 0.474
field16505 40 00:01:54 00:03:50 0.497
field16506 40 00:01:54 00:03:52 0.491
field16507 40 00:01:54 00:03:52 0.491
field16508 40 00:01:54 00:03:52 0.491
field16509 40 00:01:54 00:03:50 0.497
field16510 40 00:01:54 00:03:52 0.491
field16511 40 00:01:54 00:03:52 0.491
field16512 40 00:01:54 00:03:47 0.503
field16513 40 00:01:54 00:03:47 0.503
field16514 40 00:01:54 00:03:47 0.503
field16515 40 00:01:54 00:05:00 0.381
field16521 40 00:01:54 00:03:52 0.491
field16522 40 00:01:54 00:03:52 0.491
field16523 40 00:01:54 00:03:52 0.491
field16524 40 00:01:54 00:03:50 0.497
field16525 40 00:01:54 00:05:50 0.326
GB63_test OH 4 00:00:11 00:01:52 0.102
GB63_test OJ 8 00:00:22 00:05:31 0.069
GB63_dither OJ 48 00:02:17 00:04:35 0.498
GB80_dither OJ 48 00:02:17 00:04:38 0.493
GB97_dither OJ 48 00:02:17 00:04:32 0.503
GB114_dither OJ 48 00:02:17 00:04:35 0.498
GB113_dither OJ 48 00:02:17 00:04:32 0.503
GB96_dither OJ 96 00:04:34 00:09:30 0.481
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB62_dither OJ 48 00:02:17 00:04:46 0.479
GB61_dither OJ 48 00:02:17 00:04:38 0.493
GB60_dither OJ 48 00:02:17 00:04:32 0.503
GB59_dither OJ 48 00:02:17 00:04:35 0.498
GB58_dither OJ 48 00:02:17 00:04:35 0.498
GB57_dither OJ 48 00:02:17 00:04:35 0.498
GB74_dither OJ 48 00:02:17 00:04:35 0.498
GB75_dither OJ 48 00:02:17 00:04:32 0.503
GB76_dither OJ 48 00:02:17 00:04:35 0.498
GB77_dither OJ 48 00:02:17 00:04:38 0.493
GB78_dither OJ 48 00:02:17 00:04:46 0.479
GCsky 264 00:12:35 00:30:44 0.409
GCsky_test 4 00:00:11 00:00:47 0.239
GB63_dither OH 72 00:03:25 00:07:03 0.487
GB62_dither OH 72 00:03:25 00:07:03 0.487
GB61_dither OH 72 00:03:25 00:07:05 0.484
GB60_dither OH 72 00:03:25 00:07:08 0.480
GB59_dither OH 72 00:03:25 00:07:08 0.480
GB58_dither OH 72 00:03:25 00:07:14 0.474
GB57_dither OH 72 00:03:25 00:07:03 0.487
GB74_dither OH 96 00:04:34 00:09:30 0.481
GB75_dither OH 192 00:09:09 00:19:23 0.472
GB76_dither OH 192 00:09:09 00:19:15 0.475
GB77_dither OH 192 00:09:09 00:19:23 0.472
GB78_dither OH 192 00:09:09 00:19:18 0.474
GB79_dither OH 192 00:09:09 00:19:09 0.478
GB80_dither OH 96 00:04:34 00:09:27 0.484
GB97_dither OH 96 00:04:34 00:09:41 0.472
GB96_dither OH 216 00:10:17 00:21:34 0.477
GB95_dither OH 216 00:10:17 00:21:56 0.469
GB94_dither OH 216 00:10:17 00:21:34 0.477
GB93_dither OH 216 00:10:17 00:21:34 0.477
GB92_dither OH 216 00:10:17 00:22:02 0.467
GB91_dither OH 96 00:04:34 00:09:19 0.491
GB108_dither OH 96 00:04:34 00:09:27 0.484
GB109_dither OH 216 00:10:17 00:21:34 0.477
GB110_dither OH 216 00:10:17 00:21:34 0.477
GB111_dither OH 216 00:10:17 00:22:27 0.458
GB112_dither OH 216 00:10:17 00:22:55 0.449
GB113_dither OH 192 00:09:09 00:20:22 0.449
GB114_dither OH 72 00:03:25 00:07:28 0.459
GB131_dither OH 72 00:03:25 00:07:00 0.490
GB130_dither OH 72 00:03:25 00:07:14 0.474
GB129_dither OH 96 00:04:34 00:10:01 0.456
GB128_dither OH 72 00:03:25 00:07:11 0.477
GB127_dither OH 72 00:03:25 00:07:05 0.484
GB126_dither OH 72 00:03:25 00:07:03 0.487
GB125_dither OH 72 00:03:25 00:10:02 0.342
GB75_test OH 8 00:00:22 00:00:48 0.474
GB76_test OH 8 00:00:22 00:00:53 0.425
GB77_test OH 8 00:00:22 00:00:53 0.425
GB78_test OH 8 00:00:22 00:00:53 0.425
GB79_test OH 8 00:00:22 00:00:51 0.448
GB96_test OH 8 00:00:22 00:00:50 0.449
GB95_test OH 8 00:00:22 00:00:56 0.404
GB94_test OH 8 00:00:22 00:00:51 0.448
GB93_test OH 8 00:00:22 00:00:53 0.425
GB92_test OH 8 00:00:22 00:00:59 0.385
GB109_test OH 4 00:00:11 00:00:28 0.404
GB110_test OH 4 00:00:11 00:00:25 0.448
GB111_test OH 4 00:00:11 00:00:28 0.404
GB112_test OH 4 00:00:11 00:00:28 0.404
GB113_test OH 4 00:00:11 00:01:07 0.169
GB95_dither OJ 48 00:02:17 00:04:55 0.465
GB94_dither OJ 48 00:02:17 00:04:43 0.484
GB93_dither OJ 48 00:02:17 00:04:57 0.461
GB92_dither OJ 48 00:02:17 00:04:49 0.474
GB91_dither OJ 48 00:02:17 00:04:57 0.461
GB108_dither OJ 48 00:02:17 00:04:46 0.479
GB109_dither OJ 48 00:02:17 00:04:55 0.465
GB110_dither OJ 48 00:02:17 00:04:43 0.484
GB111_dither OJ 48 00:02:17 00:09:18 0.246










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 12:45:36 12:16:49 1.039

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 1842:54:55 947:59:12 894:55:42 250:34:47 214:46:58 214:46:58 214:46:58 146:28:09
Observed 734:34:37
(39.86%)		 383:16:12
(40.43%)		 351:18:25
(39.26%)		 55:46:07
(22.26%)		 83:40:57
(38.96%)		 163:31:33
(76.14%)		 48:19:46
(22.50%)		 146:28:09
(N/A)
Remaining 1108:20:17
(60.14%)		 564:43:00
(59.57%)		 543:37:17
(60.74%)		 194:48:40
(77.74%)		 131:06:00
(61.04%)		 51:15:24
(23.86%)		 166:27:11
(77.50%)		 00:00:00
(N/A)











Camera status (2025/06/01)



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