PRIME Observation Log 2025/06/23

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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: 2025/06/23
Local observer: Takuto
Remote observer: None
Weather: Clear
Comment:
Detector Temperature: 113.99998 +- 0.00149 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:04:21
Morning 07:13:54
Science Observation
(Sun altitude < -10°)
Start 18:27:29
End 06:50:46
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:29:48
End 05:59:05


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:37:17 12:23:16 0.777
GB Time 08:17:40 11:29:17 0.722
Non-GB Time 01:19:36 00:53:58 1.475


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.)
GB 4508 03:34:52 08:17:40 0.432
CALIB 164 00:07:49 00:14:48 0.528
SAAO 141 00:06:43 00:19:54 0.338
OU 141 00:06:43 00:19:54 0.338
NASA 141 00:06:43 00:19:54 0.338
ABC 141 00:06:43 00:19:54 0.338


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 4412 03:30:18 08:04:11 0.434
SKY 96 00:04:34 00:13:28 0.339
all_sky_grid 564 00:26:53 01:19:36 0.338
TWILIGHT 164 00:07:49 00:14:48 0.528


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB76_dither_test OH 36 00:01:42 00:11:43 0.146
GB76_dither OH 288 00:13:43 00:30:15 0.454
GB77_dither OH 288 00:13:43 00:28:03 0.489
GB78_dither OH 264 00:12:35 00:25:44 0.489
GB94_dither OH 288 00:13:43 00:28:09 0.488
GB111_dither OH 288 00:13:43 00:28:15 0.486
GB110_dither OH 288 00:13:43 00:27:58 0.491
GB109_dither OH 144 00:06:51 00:14:14 0.482
GB92_dither OH 72 00:03:25 00:06:57 0.493
GB93_dither OH 72 00:03:25 00:07:05 0.483
GB75_dither OH 144 00:06:51 00:14:14 0.482
GB112_dither OH 144 00:06:51 00:14:28 0.474
GB79_dither OH 144 00:06:51 00:15:21 0.447
GB60_dither OH 72 00:03:25 00:07:08 0.480
GB95_dither OH 72 00:03:25 00:07:11 0.477
GB113_dither OH 72 00:03:25 00:07:11 0.477
GCsky 96 00:04:34 00:13:28 0.339
GB74_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:27 0.465
GB108_dither OH 24 00:01:08 00:03:57 0.289
GB107_dither OH 24 00:01:08 00:02:30 0.456
GB90_dither OH 24 00:01:08 00:03:29 0.328
GB73_dither OH 24 00:01:08 00:02:19 0.493
GB72_dither OH 24 00:01:08 00:02:21 0.484
GB89_dither OH 24 00:01:08 00:02:27 0.465
GB106_dither OH 24 00:01:08 00:02:30 0.456
GB105_dither OH 24 00:01:08 00:02:24 0.474
GB88_dither OH 24 00:01:08 00:02:27 0.465
GB71_dither OH 24 00:01:08 00:02:52 0.397
GB96_dither OH 24 00:01:08 00:02:21 0.484
GB80_dither OH 24 00:01:08 00:02:21 0.484
GB97_dither OH 24 00:01:08 00:02:21 0.483
GB114_test OH 4 00:00:11 00:00:28 0.404
GB115_dither OH 24 00:01:08 00:02:21 0.484
GB98_dither OH 24 00:01:08 00:02:19 0.493
GB81_dither OH 24 00:01:08 00:02:21 0.484
GB82_dither OH 24 00:01:08 00:02:21 0.483
GB99_dither OH 24 00:01:08 00:02:19 0.493
GB116_dither OH 24 00:01:08 00:02:21 0.484
GB117_dither OH 24 00:01:08 00:02:21 0.484
GB100_dither OH 24 00:01:08 00:02:19 0.493
GB83_dither OH 24 00:01:08 00:02:55 0.391
GB75_dither_test OJ 12 00:00:34 00:04:13 0.136
GB75_dither OJ 48 00:02:17 00:04:32 0.503
GB76_dither OJ 48 00:02:17 00:04:38 0.493
GB77_dither OJ 48 00:02:17 00:04:38 0.493
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:04:35 0.498
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB95_dither OJ 48 00:02:17 00:04:38 0.493
GB94_dither OJ 48 00:02:17 00:04:35 0.498
GB93_dither OJ 48 00:02:17 00:04:38 0.493
GB92_dither OJ 48 00:02:17 00:04:35 0.498
GB91_dither OJ 48 00:02:17 00:06:27 0.354
GB108_dither OJ 48 00:02:17 00:04:32 0.503
GB109_dither OJ 48 00:02:17 00:04:38 0.493
GB110_dither OJ 48 00:02:17 00:04:38 0.493
GB111_dither OJ 48 00:02:17 00:04:43 0.484
GB112_dither OJ 48 00:02:17 00:04:43 0.484
GB113_dither OJ 48 00:02:17 00:04:35 0.498
GB114_dither OJ 48 00:02:17 00:04:41 0.488
GB74_dither OJ 48 00:02:17 00:16:27 0.139
GB83_dither_test OH 24 00:01:08 00:04:22 0.261
GB100_dither_test OH 28 00:01:20 00:02:53 0.463
GB117_dither_test OH 52 00:02:28 00:21:13 0.117
GB113_dither_test OH 4 00:00:11 00:00:22 0.503
GB112_dither_test OH 8 00:00:22 00:01:27 0.261
GB111_dither_test OH 8 00:00:22 00:01:24 0.270
GB110_dither_test OH 12 00:00:34 00:01:58 0.289
field10138_test 36 00:01:42 00:10:05 0.170
field10139_test 12 00:00:34 00:01:16 0.448
field10140_test 16 00:00:45 00:02:21 0.324
field10141_test 16 00:00:45 00:16:44 0.046
field10142_test 4 00:00:11 00:01:04 0.177
field10138 40 00:01:54 00:03:50 0.497
field10139 40 00:01:54 00:03:47 0.503
field10140 40 00:01:54 00:03:47 0.503
field10141 40 00:01:54 00:03:47 0.503
field10142 40 00:01:54 00:03:47 0.503
field10143 40 00:01:54 00:03:49 0.497
field10144 40 00:01:54 00:03:47 0.503
field10145 40 00:01:54 00:03:52 0.491
field10146 40 00:01:54 00:03:50 0.497
field10147 40 00:01:54 00:03:50 0.497
field10148 40 00:01:54 00:04:57 0.385
field10149 40 00:01:54 00:04:57 0.385
FLAT_test OY 4 00:00:11 00:00:56 0.203
FLAT OY 160 00:07:37 00:13:52 0.550










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 166:05:19 284:12:42 0.584

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 1860:16:42 953:01:17 907:15:24 254:01:54 217:44:29 217:44:29 217:44:29 153:09:21
Observed 887:54:21
(47.73%)		 513:09:10
(53.84%)		 374:45:11
(41.31%)		 61:35:43
(24.25%)		 88:46:59
(40.77%)		 170:56:40
(78.51%)		 53:25:48
(24.54%)		 153:09:21
(N/A)
Remaining 972:22:21
(52.27%)		 439:52:07
(46.16%)		 532:30:13
(58.69%)		 192:26:11
(75.75%)		 128:57:30
(59.23%)		 46:47:49
(21.49%)		 164:18:41
(75.46%)		 00:00:00
(N/A)











Camera status (2025/06/23)



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