PRIME Observation Log 2025/05/28

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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: 2025/05/28
Local observer: Ryusei
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00001 +- 0.00036 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:04:30
Morning 07:03:58
Science Observation
(Sun altitude < -10°)
Start 18:27:17
End 06:41:09
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:12:01
End 06:41:09


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 05:39:24 12:13:52 0.462
GB Time 03:52:55 10:29:08 0.370
Non-GB Time 01:46:28 01:44:44 1.017


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 4 00:00:11 00:00:41 0.276
GB 2132 01:41:37 03:52:55 0.436
SAAO 253 00:12:03 00:26:37 0.453
OU 253 00:12:03 00:26:37 0.453
NASA 253 00:12:03 00:26:37 0.453
ABC 253 00:12:03 00:26:37 0.453


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 4 00:00:11 00:00:41 0.276
all_sky_grid 1012 00:48:14 01:46:28 0.453
Bulge 2108 01:40:28 03:50:22 0.436
SKY 24 00:01:08 00:02:33 0.448


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test ZO 4 00:00:11 00:00:41 0.276
field14314_test 12 00:00:34 00:06:44 0.085
field14314 40 00:01:54 00:03:55 0.485
field14315 40 00:01:54 00:03:52 0.491
field14316 40 00:01:54 00:03:47 0.503
field14317 40 00:01:54 00:03:47 0.503
field14318 40 00:01:54 00:03:47 0.503
field14319 40 00:01:54 00:03:50 0.497
field14320 40 00:01:54 00:03:50 0.497
field14321 40 00:01:54 00:03:52 0.491
field14322 40 00:01:54 00:03:52 0.491
field14323 40 00:01:54 00:03:50 0.497
field14324 40 00:01:54 00:03:50 0.497
field14325 40 00:01:54 00:03:47 0.503
field14326 40 00:01:54 00:03:47 0.503
field14327 40 00:01:54 00:03:47 0.503
field14328 40 00:01:54 00:03:47 0.503
field14329 40 00:01:54 00:03:50 0.497
field14330 40 00:01:54 00:04:23 0.434
field14331 40 00:01:54 00:03:50 0.497
field14332 40 00:01:54 00:03:50 0.497
field14333 40 00:01:54 00:03:50 0.497
field14334 40 00:01:54 00:03:50 0.497
field14335 40 00:01:54 00:05:39 0.337
field14336 40 00:01:54 00:03:50 0.497
field14337 40 00:01:54 00:03:50 0.497
field14338 40 00:01:54 00:05:25 0.352
GB63_test OJ 60 00:02:51 00:20:37 0.139
GB63_dither OJ 48 00:02:17 00:04:32 0.503
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:04:38 0.493
GB114_dither OJ 48 00:02:17 00:04:41 0.488
GB131_dither OJ 48 00:02:17 00:04:38 0.493
GB130_dither OJ 48 00:02:17 00:04:32 0.503
GB113_dither OJ 48 00:02:17 00:04:35 0.498
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB62_dither OJ 48 00:02:17 00:04:32 0.503
GB61_dither OJ 48 00:02:17 00:04:32 0.503
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
GB129_dither OJ 48 00:02:17 00:05:37 0.407
GB63_test OH 32 00:01:31 00:13:04 0.117
GB63_dither OH 48 00:02:17 00:04:38 0.493
GB62_dither OH 48 00:02:17 00:04:35 0.498
GB61_dither OH 48 00:02:17 00:04:38 0.493
GB60_dither OH 48 00:02:17 00:04:41 0.488
GB59_dither OH 48 00:02:17 00:04:41 0.488
GB58_dither OH 48 00:02:17 00:04:41 0.488
GB57_dither OH 48 00:02:17 00:04:41 0.488
GB74_dither OH 48 00:02:17 00:04:41 0.488
GB75_dither OH 48 00:02:17 00:04:41 0.488
GB76_dither OH 48 00:02:17 00:04:41 0.488
GB77_dither OH 48 00:02:17 00:04:38 0.493
GB78_dither OH 48 00:02:17 00:04:43 0.484
GB79_dither OH 48 00:02:17 00:04:38 0.493
GB80_dither OH 48 00:02:17 00:04:41 0.488
GB97_dither OH 48 00:02:17 00:04:41 0.488
GB96_dither OH 48 00:02:17 00:04:43 0.484
GB95_dither OH 48 00:02:17 00:04:38 0.493
GB94_dither OH 48 00:02:17 00:04:43 0.483
GB93_dither OH 48 00:02:17 00:04:54 0.467
GB92_dither OH 24 00:01:08 00:02:21 0.483
GB91_dither OH 24 00:01:08 00:02:33 0.448
GCsky 24 00:01:08 00:02:33 0.448
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB109_dither OH 24 00:01:08 00:02:16 0.503
GB110_dither OH 24 00:01:08 00:02:19 0.493
GB111_dither OH 24 00:01:08 00:02:16 0.503
GB112_dither OH 24 00:01:08 00:02:16 0.503
GB113_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB131_dither OH 24 00:01:08 00:02:19 0.493
GB130_dither OH 24 00:01:08 00:02:21 0.483
GB129_dither OH 24 00:01:08 00:02:19 0.493
GB128_dither OH 24 00:01:08 00:02:21 0.484
GB127_dither OH 24 00:01:08 00:02:19 0.493
GB126_dither OH 24 00:01:08 00:02:21 0.484
GB125_dither OH 24 00:01:08 00:02:38 0.432










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 218:12:17 335:45:37 0.650

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 1828:28:12 936:22:21 892:05:51 249:47:14 214:06:12 214:06:12 214:06:12 144:45:16
Observed 695:36:23
(38.04%)		 350:18:50
(37.41%)		 345:17:33
(38.71%)		 53:35:35
(21.46%)		 82:24:11
(38.49%)		 162:14:47
(75.78%)		 47:02:59
(21.98%)		 144:45:16
(N/A)
Remaining 1132:51:49
(61.96%)		 586:03:31
(62.59%)		 546:48:17
(61.29%)		 196:11:39
(78.54%)		 131:42:01
(61.51%)		 51:51:24
(24.22%)		 167:03:12
(78.02%)		 00:00:00
(N/A)











Camera status (2025/05/28)



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