PRIME Observation Log 2025/03/24

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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: 2025/03/24
Local observer: Ryo Ogawa
Remote observer:
Weather: clear,misty
Comment:
Detector Temperature: 113.99988 +- 0.00109 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:04:33
Morning 06:21:28
Science Observation
(Sun altitude < -10°)
Start 19:25:52
End 06:00:07
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 00:27:33
End 06:00:07


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:04:11 10:34:14 0.669
GB Time 02:32:03 05:32:33 0.457
Non-GB Time 04:32:07 05:01:41 0.902


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 132 00:06:17 00:29:57 0.210
GB 1496 01:11:18 02:32:03 0.469
SAAO 676 00:32:13 01:08:01 0.474
OU 676 00:32:13 01:08:01 0.474
NASA 676 00:32:13 01:08:01 0.474
ABC 676 00:32:13 01:08:01 0.474


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 132 00:06:17 00:29:57 0.210
all_sky_grid 2704 02:08:53 04:32:07 0.474
Bulge 1496 01:11:18 02:32:03 0.469


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OH 4 00:00:11 00:00:41 0.276
FLAT_test OJ 8 00:00:22 00:16:07 0.024
FLAT OJ 120 00:05:43 00:13:08 0.435
field21971_test 24 00:01:08 00:14:02 0.081
field21971 40 00:01:54 00:03:50 0.497
field21972 40 00:01:54 00:03:50 0.497
field21973 40 00:01:54 00:03:50 0.497
field21974 40 00:01:54 00:03:47 0.503
field21975 40 00:01:54 00:03:47 0.503
field21976 40 00:01:54 00:03:47 0.503
field21977 40 00:01:54 00:03:47 0.503
field21978 40 00:01:54 00:03:47 0.503
field21979 40 00:01:54 00:03:50 0.497
field21980 40 00:01:54 00:03:50 0.497
field21981 40 00:01:54 00:03:50 0.497
field21982 40 00:01:54 00:03:52 0.491
field21983 40 00:01:54 00:03:52 0.491
field21984 40 00:01:54 00:03:47 0.503
field21985 40 00:01:54 00:03:47 0.503
field21986 40 00:01:54 00:03:47 0.503
field21987 40 00:01:54 00:03:47 0.503
field21988 40 00:01:54 00:03:47 0.503
field21989 40 00:01:54 00:03:47 0.503
field21990 40 00:01:54 00:03:47 0.503
field21991 40 00:01:54 00:03:50 0.497
field21992 40 00:01:54 00:03:52 0.491
field21993 40 00:01:54 00:03:50 0.497
field21994 40 00:01:54 00:03:52 0.491
field21995 40 00:01:54 00:03:47 0.503
field21996 40 00:01:54 00:03:47 0.503
field21997 40 00:01:54 00:03:47 0.503
field21998 40 00:01:54 00:03:47 0.503
field21999 40 00:01:54 00:03:47 0.503
field22000 40 00:01:54 00:03:47 0.503
field22001 40 00:01:54 00:03:50 0.497
field22002 40 00:01:54 00:03:52 0.491
field22003 40 00:01:54 00:03:50 0.497
field22004 40 00:01:54 00:03:50 0.497
field22005 40 00:01:54 00:03:52 0.491
field22006 40 00:01:54 00:03:52 0.491
field22007 40 00:01:54 00:03:47 0.503
field22008 40 00:01:54 00:03:47 0.503
field22009 40 00:01:54 00:03:47 0.503
field22010 40 00:01:54 00:03:47 0.503
field22011 40 00:01:54 00:03:50 0.497
field22012 40 00:01:54 00:03:50 0.497
field22013 40 00:01:54 00:05:30 0.346
field5258 40 00:01:54 00:03:50 0.497
field5259 40 00:01:54 00:03:47 0.503
field5260 40 00:01:54 00:04:05 0.465
field5261 40 00:01:54 00:03:50 0.497
field5493 40 00:01:54 00:03:47 0.503
field5494 40 00:01:54 00:03:47 0.503
field5495 40 00:01:54 00:03:50 0.497
field5496 40 00:01:54 00:03:47 0.503
field5497 40 00:01:54 00:03:52 0.491
field5979 40 00:01:54 00:03:50 0.497
field5980 40 00:01:54 00:03:50 0.497
field5981 40 00:01:54 00:03:47 0.503
field5982 40 00:01:54 00:03:50 0.497
field5983 40 00:01:54 00:03:50 0.497
field5984 40 00:01:54 00:03:50 0.497
field6480 40 00:01:54 00:03:47 0.503
field6481 40 00:01:54 00:03:47 0.503
field6482 40 00:01:54 00:03:50 0.497
field6483 40 00:01:54 00:03:50 0.497
field6484 40 00:01:54 00:03:50 0.497
field6485 40 00:01:54 00:03:50 0.497
field6486 40 00:01:54 00:03:50 0.497
field6736 40 00:01:54 00:03:47 0.503
field6737 40 00:01:54 00:04:05 0.465
GB63_test OJ 4 00:00:11 00:02:45 0.069
GB63_dither OJ 48 00:02:17 00:04:32 0.503
GB62_dither OJ 48 00:02:17 00:04:35 0.498
GB61_dither OJ 48 00:02:17 00:04:35 0.498
GB60_dither OJ 48 00:02:17 00:04:35 0.498
GB59_dither OJ 48 00:02:17 00:04:35 0.498
GB58_dither OJ 48 00:02:17 00:04:32 0.503
GB57_dither OJ 48 00:02:17 00:04:35 0.498
GB74_dither OJ 48 00:02:17 00:04:35 0.498
GB75_dither OJ 48 00:02:17 00:04:32 0.503
GB76_dither OJ 48 00:02:17 00:04:32 0.503
GB77_dither OJ 48 00:02:17 00:04:41 0.488
GB78_dither OJ 48 00:02:17 00:04:38 0.493
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 00:04:38 0.493
GB95_dither OJ 48 00:02:17 00:05:03 0.452
GB94_test OJ 20 00:00:57 00:07:01 0.136
GB94_dither OJ 48 00:02:17 00:04:32 0.503
GB93_dither OJ 48 00:02:17 00:04:41 0.488
GB92_dither OJ 48 00:02:17 00:04:35 0.498
GB91_dither OJ 48 00:02:17 00:04:35 0.498
GB108_dither OJ 48 00:02:17 00:04:38 0.493
GB109_dither OJ 48 00:02:17 00:04:41 0.488
GB110_dither OJ 48 00:02:17 00:04:43 0.483
GB111_dither OJ 48 00:02:17 00:04:41 0.488
GB112_dither OJ 48 00:02:17 00:04:35 0.498
GB113_dither OJ 48 00:02:17 00:04:46 0.479
GB114_dither OJ 48 00:02:17 00:04:35 0.498
GB131_dither OJ 48 00:02:17 00:04:38 0.493
GB130_dither OJ 48 00:02:17 00:04:35 0.498
GB129_dither OJ 32 00:01:31 00:03:23 0.450










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 100:36:26 244:11:56 0.412

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 1765:23:24 910:12:26 855:10:58 239:27:04 205:14:37 205:14:37 205:14:37 101:43:03
Observed 258:06:38
(14.62%)		 62:06:13
(6.82%)		 196:00:24
(22.92%)		 20:17:46
(8.48%)		 50:09:35
(24.44%)		 109:07:50
(53.17%)		 16:25:11
(8.00%)		 101:43:03
(N/A)
Remaining 1507:16:46
(85.38%)		 848:06:12
(93.18%)		 659:10:33
(77.08%)		 219:09:17
(91.52%)		 155:05:02
(75.56%)		 96:06:47
(46.83%)		 188:49:26
(92.00%)		 00:00:00
(N/A)











Camera status (2025/03/24)



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