PRIME Observation Log 2025/06/12

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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: 2025/06/12
Local observer: Ryusei
Remote observer:
Weather: clear
Comment:
Detector Temperature: 113.99997 +- 0.00119 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:02:36
Morning 07:11:00
Science Observation
(Sun altitude < -10°)
Start 18:25:41
End 06:47:54
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:13:03
End 06:42:20


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:36:55 12:22:12 1.020
GB Time 11:12:13 11:29:17 0.975
Non-GB Time 01:24:42 00:52:54 1.601


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.)
GB 6588 05:14:01 11:12:13 0.467
CALIB 80 00:03:48 00:07:05 0.538
SAAO 159 00:07:34 00:21:10 0.358
OU 159 00:07:34 00:21:10 0.358
NASA 159 00:07:34 00:21:10 0.358
ABC 159 00:07:34 00:21:10 0.358


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 636 00:30:18 01:24:42 0.358
Bulge 6384 05:04:18 10:46:33 0.471
SKY 204 00:09:43 00:25:40 0.379
TWILIGHT 80 00:03:48 00:07:05 0.538


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field12151_test 16 00:00:45 00:11:53 0.064
field12151 40 00:01:54 00:03:50 0.497
field12152 40 00:01:54 00:03:50 0.497
field12153 40 00:01:54 00:03:52 0.491
field12154 40 00:01:54 00:03:52 0.491
field12155 40 00:01:54 00:03:52 0.491
field12156 40 00:01:54 00:03:47 0.503
field12157 40 00:01:54 00:06:01 0.316
field12158 40 00:01:54 00:06:43 0.283
GB82_test OJ 12 00:00:34 00:03:28 0.165
GB82_dither OJ 48 00:02:17 00:04:38 0.493
GB99_dither OJ 48 00:02:17 00:04:35 0.498
GB81_dither OJ 48 00:02:17 00:04:32 0.503
GB98_dither OJ 48 00:02:17 00:04:32 0.503
GB116_dither OJ 48 00:02:17 00:04:35 0.498
GB115_dither OJ 48 00:02:17 00:04:38 0.493
GB80_dither OJ 48 00:02:17 00:04:32 0.503
GB97_dither OJ 48 00:02:17 00:04:38 0.493
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:11:27 0.200
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB114_dither OJ 48 00:02:17 00:04:38 0.493
GB113_dither OJ 48 00:02:17 00:04:35 0.498
GB95_dither OJ 48 00:02:17 00:04:32 0.503
GB77_dither OJ 48 00:02:17 00:04:43 0.484
GCsky 200 00:09:32 00:24:32 0.388
GCsky_test 4 00:00:11 00:01:07 0.169
GB76_dither OH 576 00:27:27 00:56:30 0.486
GB77_dither OH 576 00:27:27 00:56:38 0.485
GB78_dither OH 576 00:27:27 00:56:33 0.486
GB94_dither OH 576 00:27:27 00:56:47 0.484
GB111_dither OH 576 00:27:27 00:56:41 0.484
GB110_dither OH 600 00:28:36 00:59:25 0.481
GB109_dither OH 336 00:16:00 00:32:59 0.486
GB92_dither OH 168 00:08:00 00:16:33 0.484
GB93_dither OH 168 00:08:00 00:16:47 0.477
GB75_dither OH 276 00:13:09 00:27:54 0.471
GB112_dither OH 264 00:12:35 00:25:53 0.486
GB79_dither OH 264 00:12:35 00:28:02 0.449
GB60_dither OH 144 00:06:51 00:14:42 0.467
GB95_dither OH 120 00:05:43 00:12:01 0.476
GB113_dither OH 120 00:05:43 00:11:49 0.484
GB80_dither OH 24 00:01:08 00:02:27 0.465
GB97_dither OH 24 00:01:08 00:02:24 0.474
GB114_dither OH 24 00:01:08 00:02:55 0.391
GB108_dither OH 48 00:02:17 00:06:13 0.367
GB91_dither OH 24 00:01:08 00:02:27 0.465
GB74_dither OH 24 00:01:08 00:03:54 0.293
GB73_dither OH 24 00:01:08 00:02:24 0.474
GB90_dither OH 24 00:01:08 00:03:29 0.328
GB107_dither OH 24 00:01:08 00:02:21 0.483
GB106_dither OH 24 00:01:08 00:03:32 0.324
GB89_dither OH 24 00:01:08 00:02:24 0.474
GB72_dither OH 24 00:01:08 00:03:15 0.352
field9843_test 20 00:00:57 00:07:24 0.129
field9843 40 00:01:54 00:03:52 0.491
field9844 40 00:01:54 00:03:52 0.491
field9845 40 00:01:54 00:03:55 0.485
field9846 40 00:01:54 00:03:58 0.480
field9847 40 00:01:54 00:04:01 0.474
field9848 40 00:01:54 00:03:58 0.480
field9849 40 00:01:54 00:05:53 0.324
FLAT OH 80 00:03:48 00:07:05 0.538










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 91:09:00 147:58:03 0.616

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 1853:27:43 947:45:55 905:41:47 253:35:42 217:22:01 217:22:01 217:22:01 149:47:37
Observed 812:58:01
(43.86%)		 444:42:41
(46.92%)		 368:15:20
(40.66%)		 59:58:15
(23.65%)		 87:09:31
(40.10%)		 169:19:12
(77.90%)		 51:48:20
(23.83%)		 149:47:37
(N/A)
Remaining 1040:29:41
(56.14%)		 503:03:14
(53.08%)		 537:26:27
(59.34%)		 193:37:26
(76.35%)		 130:12:30
(59.90%)		 48:02:48
(22.10%)		 165:33:41
(76.17%)		 00:00:00
(N/A)











Camera status (2025/06/12)



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