PRIME Observation Log 2025/06/14

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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: 2025/06/14
Local observer: Ryusei
Remote observer:
Weather: clear
Comment:
Detector Temperature: 113.99996 +- 0.00148 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:02:44
Morning 07:11:41
Science Observation
(Sun altitude < -10°)
Start 18:25:51
End 06:48:34
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:05:11
End 06:34:28


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:30:45 12:22:43 1.011
GB Time 11:18:36 11:29:17 0.985
Non-GB Time 01:12:08 00:53:26 1.350


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 260 00:12:23 00:44:30 0.278
GB 6504 05:10:01 11:18:36 0.457
SAAO 96 00:04:34 00:18:02 0.254
OU 96 00:04:34 00:18:02 0.254
NASA 96 00:04:34 00:18:02 0.254
ABC 96 00:04:34 00:18:02 0.254


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 260 00:12:23 00:44:30 0.278
all_sky_grid 384 00:18:18 01:12:08 0.254
Bulge 6336 05:02:00 10:53:01 0.462
SKY 168 00:08:00 00:25:34 0.313


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 8 00:00:22 00:10:03 0.038
FLAT OJ 252 00:12:00 00:34:27 0.349
field16211_test 76 00:03:37 00:25:22 0.143
field15588_test 12 00:00:34 00:03:33 0.160
field15588 40 00:01:54 00:03:47 0.503
field15589 40 00:01:54 00:03:50 0.497
field15590 40 00:01:54 00:03:52 0.491
field15591 40 00:01:54 00:07:34 0.252
GB81_test OJ 16 00:00:45 00:05:37 0.136
GB81_dither OJ 48 00:02:17 00:04:35 0.498
GB98_dither OJ 48 00:02:17 00:04:35 0.498
GB115_dither OJ 48 00:02:17 00:05:03 0.452
GB80_dither OJ 48 00:02:17 00:04:32 0.503
GB97_dither OJ 48 00:02:17 00:04:38 0.493
GB114_dither OJ 48 00:02:17 00:04:41 0.488
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB113_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB112_dither OJ 48 00:02:17 00:04:32 0.503
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:32 0.503
GB109_dither OJ 48 00:02:17 00:04:43 0.484
GCsky 160 00:07:37 00:22:29 0.339
GCsky_test 8 00:00:22 00:03:05 0.123
GB77_dither OJ 48 00:02:17 00:04:32 0.503
GB94_dither OJ 48 00:02:17 00:04:35 0.498
GB93_dither OJ 48 00:02:17 00:04:32 0.503
GB76_dither OJ 48 00:02:17 00:04:46 0.479
GB75_dither OJ 48 00:02:17 00:04:32 0.503
GB92_dither OJ 48 00:02:17 00:05:03 0.452
GB74_dither OJ 48 00:02:17 00:04:38 0.493
GB91_dither OJ 48 00:02:17 00:04:35 0.498
GB108_dither OJ 48 00:02:17 00:04:35 0.498
GB73_dither OJ 48 00:02:17 00:04:35 0.498
GB90_dither OJ 48 00:02:17 00:04:35 0.498
GB107_dither OJ 48 00:02:17 00:04:35 0.498
GB106_dither OJ 48 00:02:17 00:04:38 0.493
GB89_dither OJ 48 00:02:17 00:04:38 0.493
GB72_dither OJ 48 00:02:17 00:06:05 0.376
GB76_dither OH 504 00:24:01 00:51:36 0.466
GB77_dither OH 504 00:24:01 00:50:20 0.477
GB78_dither OH 488 00:23:15 00:48:24 0.481
GB94_dither OH 480 00:22:52 00:47:22 0.483
GB111_dither OH 480 00:22:52 00:48:03 0.476
GB110_dither OH 504 00:24:01 00:50:37 0.475
GB109_dither OH 288 00:13:43 00:29:36 0.464
GB92_dither OH 144 00:06:51 00:14:23 0.477
GB93_dither OH 144 00:06:51 00:14:20 0.479
GB75_dither OH 264 00:12:35 00:27:25 0.459
GB112_dither OH 216 00:10:17 00:21:20 0.482
GB79_dither OH 216 00:10:17 00:23:43 0.434
GB60_dither OH 120 00:05:43 00:12:01 0.476
GB95_dither OH 96 00:04:34 00:09:30 0.481
GB113_dither OH 96 00:04:34 00:09:36 0.476
GB81_dither OH 24 00:01:08 00:02:19 0.493
GB98_dither OH 24 00:01:08 00:02:21 0.484
GB115_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB80_dither OH 24 00:01:08 00:02:19 0.493
GB96_dither OH 24 00:01:08 00:02:44 0.418
GB74_dither OH 24 00:01:08 00:02:24 0.474
GB91_dither OH 24 00:01:08 00:02:27 0.465
GB108_dither OH 48 00:02:17 00:18:27 0.124
GB107_dither OH 24 00:01:08 00:02:19 0.493
GB90_dither OH 24 00:01:08 00:02:24 0.474
GB73_dither OH 24 00:01:08 00:03:43 0.307
field10143_test 8 00:00:22 00:02:48 0.136
field12879_test 8 00:00:22 00:03:16 0.116
field12879 40 00:01:54 00:04:01 0.474
field12880 40 00:01:54 00:04:09 0.458
field12881 40 00:01:54 00:09:51 0.193










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 116:06:37 172:43:16 0.672

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 1866:02:43 958:41:45 907:20:57 254:03:28 217:45:49 217:45:49 217:45:49 150:53:06
Observed 837:55:38
(44.90%)		 467:07:48
(48.73%)		 370:47:49
(40.87%)		 60:36:23
(23.86%)		 87:47:38
(40.32%)		 169:57:20
(78.05%)		 52:26:27
(24.08%)		 150:53:06
(N/A)
Remaining 1028:07:04
(55.10%)		 491:33:56
(51.27%)		 536:33:08
(59.13%)		 193:27:05
(76.14%)		 129:58:11
(59.68%)		 47:48:29
(21.95%)		 165:19:22
(75.92%)		 00:00:00
(N/A)











Camera status (2025/06/14)



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