PRIME Observation Log 2025/03/25

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Raw Log (Time is in SA time)
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Observation Log (Time is in UT)

Date: 2025/03/25
Local observer: Ryo Ogawa
Remote observer: Takuto Tamaoki, Ryunosuke Oishi
Weather: Clear
Comment:
Detector Temperature: 114.00001 +- 0.00108 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:03:15
Morning 06:22:10
Science Observation
(Sun altitude < -10°)
Start 19:24:34
End 06:00:49
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 00:23:38
End 06:00:49


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 10:56:12 10:36:15 1.031
GB Time 05:51:45 05:37:11 1.043
Non-GB Time 05:04:27 04:59:03 1.018


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 2972 02:21:39 05:51:45 0.403
CALIB 92 00:04:23 00:15:50 0.277
ALLSKY 2716 02:09:27 05:04:27 0.425
SAAO 679 00:32:21 01:16:06 0.425
OU 679 00:32:21 01:16:06 0.425
NASA 679 00:32:21 01:16:06 0.425
ABC 679 00:32:21 01:16:06 0.425


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 2900 02:18:14 05:43:19 0.403
TWILIGHT 92 00:04:23 00:15:50 0.277
all_sky_grid 2716 02:09:27 05:04:27 0.425
SKY 72 00:03:25 00:08:25 0.407


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB129_dither OJ 4 00:00:11 00:00:41 0.276
FLAT_test OY 4 00:00:11 00:02:14 0.085
FLAT OY 88 00:04:11 00:13:35 0.308
field22261_test 24 00:01:08 00:09:53 0.116
field22261 40 00:01:54 00:04:04 0.469
field22262 40 00:01:54 00:04:18 0.443
field22263 40 00:01:54 00:04:26 0.429
field22264 40 00:01:54 00:03:47 0.503
field22265 40 00:01:54 00:04:29 0.425
field22266 40 00:01:54 00:04:01 0.474
field22267 40 00:01:54 00:04:34 0.416
field22268 40 00:01:54 00:03:52 0.491
field22269 40 00:01:54 00:04:09 0.458
field22270 40 00:01:54 00:04:20 0.438
field22271 40 00:01:54 00:03:52 0.491
field22272 40 00:01:54 00:04:12 0.453
field22273 40 00:01:54 00:04:04 0.469
field22274 40 00:01:54 00:04:29 0.425
field22275 40 00:01:54 00:03:50 0.497
field22276 40 00:01:54 00:04:01 0.474
field22277 40 00:01:54 00:04:29 0.425
field22278 40 00:01:54 00:04:15 0.448
field22279 40 00:01:54 00:04:18 0.443
field22280 40 00:01:54 00:04:04 0.469
field22281 40 00:01:54 00:04:26 0.429
field22282 40 00:01:54 00:04:12 0.453
field22283 40 00:01:54 00:03:49 0.499
field22284 40 00:01:54 00:04:10 0.457
field22285 40 00:01:54 00:03:50 0.497
field22286 40 00:01:54 00:03:52 0.491
field22287 40 00:01:54 00:04:04 0.469
field22288 40 00:01:54 00:04:15 0.448
field22289 40 00:01:54 00:04:20 0.438
field22290 40 00:01:54 00:04:04 0.469
field22291 40 00:01:54 00:04:01 0.474
field22292 40 00:01:54 00:03:47 0.503
field22293 40 00:01:54 00:04:15 0.448
field22294 40 00:01:54 00:04:18 0.443
field22295 40 00:01:54 00:04:03 0.469
field22296 40 00:01:54 00:03:52 0.492
field22297 40 00:01:54 00:04:04 0.468
field22298 40 00:01:54 00:04:12 0.453
field22299 40 00:01:54 00:04:32 0.420
field22300 40 00:01:54 00:04:04 0.469
field22301 40 00:01:54 00:03:55 0.485
field22302 40 00:01:54 00:04:06 0.463
field22303 40 00:01:54 00:08:18 0.229
field5030_test 12 00:00:34 00:06:27 0.088
field5030 40 00:01:54 00:04:12 0.453
field5262 40 00:01:54 00:03:52 0.491
field5498 40 00:01:54 00:03:52 0.492
field5499 40 00:01:54 00:04:04 0.468
field5985 40 00:01:54 00:03:58 0.480
field6487 40 00:01:54 00:03:52 0.491
field6738 40 00:01:54 00:04:18 0.443
field6739 40 00:01:54 00:04:20 0.440
field6740 40 00:01:54 00:03:50 0.495
field6741 40 00:01:54 00:04:01 0.474
field6742 40 00:01:54 00:03:47 0.502
field6743 40 00:01:54 00:03:57 0.481
field6997 40 00:01:54 00:04:03 0.469
field6998 40 00:01:54 00:04:18 0.443
field6999 40 00:01:54 00:04:12 0.453
field7000 40 00:01:54 00:04:01 0.474
field7001 40 00:01:54 00:03:52 0.491
field7002 40 00:01:54 00:03:52 0.491
field7003 40 00:01:54 00:04:18 0.443
field7260 40 00:01:54 00:03:47 0.503
field7261 40 00:01:54 00:04:01 0.474
field7262 40 00:01:54 00:03:50 0.497
field7263 40 00:01:54 00:04:09 0.458
field7264 40 00:01:54 00:13:07 0.145
GB63_dither_test OH 16 00:00:45 00:07:21 0.104
GB63_dither OH 96 00:04:34 00:10:36 0.431
GB62_dither OH 96 00:04:34 00:09:36 0.476
GB61_dither OH 96 00:04:34 00:09:54 0.462
GB60_dither OH 96 00:04:34 00:11:49 0.387
GB59_dither OH 96 00:04:34 00:12:07 0.377
GB58_dither OH 96 00:04:34 00:23:56 0.191
GB57_dither OH 96 00:04:34 00:10:01 0.457
GB74_dither OH 96 00:04:34 00:09:36 0.476
GB75_dither OH 96 00:04:34 00:09:50 0.465
GB76_dither OH 96 00:04:34 00:10:07 0.452
GB77_dither OH 96 00:04:34 00:09:58 0.459
GB78_dither OH 96 00:04:34 00:10:15 0.446
GB79_dither OH 120 00:05:43 00:20:28 0.279
GB80_dither OH 96 00:04:34 00:14:19 0.319
GB97_dither OH 72 00:03:25 00:07:19 0.468
GB96_dither OH 72 00:03:25 00:07:31 0.456
GB95_dither OH 72 00:03:25 00:07:27 0.461
GB94_dither OH 72 00:03:25 00:08:19 0.412
GB93_dither OH 72 00:03:25 00:07:28 0.459
GB92_dither OH 72 00:03:25 00:07:05 0.484
GB91_dither OH 72 00:03:25 00:07:23 0.465
GB108_dither OH 72 00:03:25 00:07:47 0.440
GB109_dither OH 72 00:03:25 00:07:42 0.445
GB110_dither OH 72 00:03:25 00:07:11 0.477
GB111_dither OH 72 00:03:25 00:07:45 0.443
GB112_dither OH 72 00:03:25 00:07:28 0.459
GB113_dither OH 72 00:03:25 00:07:31 0.456
GB114_dither OH 72 00:03:25 00:07:08 0.480
GB131_dither OH 72 00:03:25 00:07:33 0.454
GB130_dither OH 72 00:03:25 00:07:39 0.448
GB129_dither OH 72 00:03:25 00:07:03 0.487
GB128_dither OH 72 00:03:25 00:07:22 0.465
GB127_dither OH 72 00:03:25 00:07:14 0.474
GB126_dither OH 72 00:03:25 00:08:01 0.427
GB125_dither OH 72 00:03:25 00:12:33 0.273
GCsky 72 00:03:25 00:08:25 0.407










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 111:32:39 254:48:11 0.438

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 1771:01:30 913:15:36 857:45:53 240:10:27 205:51:48 205:51:48 205:51:48 101:58:54
Observed 269:02:51
(15.19%)		 67:57:58
(7.44%)		 201:04:52
(23.44%)		 21:33:53
(8.98%)		 51:25:42
(24.98%)		 110:23:57
(53.63%)		 17:41:18
(8.59%)		 101:58:54
(N/A)
Remaining 1501:58:38
(84.81%)		 845:17:37
(92.56%)		 656:41:01
(76.56%)		 218:36:33
(91.02%)		 154:26:06
(75.02%)		 95:27:51
(46.37%)		 188:10:30
(91.41%)		 00:00:00
(N/A)











Camera status (2025/03/25)