PRIME Observation Log 2025/03/26

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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: 2025/03/26
Local observer: Ryo Ogawa
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00005 +- 0.00174 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:01:57
Morning 06:22:51
Science Observation
(Sun altitude < -10°)
Start 19:23:16
End 06:01:31
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 00:19:42
End 06:01:31


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:43:45 10:38:15 0.633
GB Time 02:12:51 05:41:49 0.389
Non-GB Time 04:30:53 04:56:25 0.914


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 116 00:05:31 00:34:02 0.162
GB 1268 01:00:26 02:12:51 0.455
SAAO 682 00:32:30 01:07:43 0.480
OU 682 00:32:30 01:07:43 0.480
NASA 682 00:32:30 01:07:43 0.480
ABC 682 00:32:30 01:07:43 0.480


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 116 00:05:31 00:34:02 0.162
all_sky_grid 2728 02:10:02 04:30:53 0.480
Bulge 1244 00:59:17 02:10:23 0.455
SKY 24 00:01:08 00:02:27 0.465


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OY 4 00:00:11 00:00:41 0.276
FLAT_test ZO 24 00:01:08 00:23:31 0.049
FLAT ZO 88 00:04:11 00:09:49 0.427
field22551_test 4 00:00:11 00:01:13 0.156
field22551 40 00:01:54 00:03:50 0.497
field22552 40 00:01:54 00:03:50 0.497
field22553 40 00:01:54 00:03:47 0.503
field22554 40 00:01:54 00:03:47 0.503
field22555 40 00:01:54 00:03:47 0.503
field22556 40 00:01:54 00:03:47 0.503
field22557 40 00:01:54 00:03:47 0.503
field22558 40 00:01:54 00:03:47 0.503
field22559 40 00:01:54 00:03:50 0.497
field22560 40 00:01:54 00:03:52 0.491
field22561 40 00:01:54 00:03:50 0.497
field22562 40 00:01:54 00:03:52 0.491
field22563 40 00:01:54 00:03:50 0.497
field22564 40 00:01:54 00:03:47 0.503
field22565 40 00:01:54 00:03:47 0.503
field22566 40 00:01:54 00:03:47 0.503
field22567 40 00:01:54 00:03:47 0.503
field22568 40 00:01:54 00:03:47 0.503
field22569 40 00:01:54 00:03:47 0.503
field22570 40 00:01:54 00:03:52 0.491
field22571 40 00:01:54 00:03:52 0.491
field22572 40 00:01:54 00:03:55 0.485
field22573 40 00:01:54 00:03:50 0.497
field22574 40 00:01:54 00:03:52 0.491
field22575 40 00:01:54 00:03:50 0.497
field22576 40 00:01:54 00:03:47 0.503
field22577 40 00:01:54 00:03:47 0.503
field22578 40 00:01:54 00:03:47 0.503
field22579 40 00:01:54 00:03:47 0.503
field22580 40 00:01:54 00:03:47 0.503
field22581 40 00:01:54 00:03:52 0.491
field22585 40 00:01:54 00:03:52 0.491
field22586 40 00:01:54 00:03:50 0.497
field22587 40 00:01:54 00:03:47 0.503
field22588 40 00:01:54 00:03:47 0.503
field22589 40 00:01:54 00:03:47 0.503
field22590 40 00:01:54 00:03:50 0.497
field22591 40 00:01:54 00:04:05 0.465
field7530 40 00:01:54 00:05:11 0.367
field7797 40 00:01:54 00:03:50 0.497
field7798 40 00:01:54 00:03:50 0.497
field7799 40 00:01:54 00:03:47 0.503
field7800 40 00:01:54 00:04:09 0.458
field8066_test 24 00:01:08 00:04:47 0.239
field8066 40 00:01:54 00:03:50 0.497
field8067 40 00:01:54 00:03:50 0.497
field8068 40 00:01:54 00:04:34 0.416
field8069_test 20 00:00:57 00:05:04 0.188
field8069 40 00:01:54 00:03:50 0.497
field8070 40 00:01:54 00:03:47 0.503
field8071 40 00:01:54 00:03:50 0.497
field8072 40 00:01:54 00:03:47 0.503
field8073 40 00:01:54 00:03:50 0.497
field8349 40 00:01:54 00:03:47 0.503
field8350 40 00:01:54 00:03:50 0.497
field8625 40 00:01:54 00:03:47 0.503
field8626 40 00:01:54 00:03:47 0.503
field8627 40 00:01:54 00:03:47 0.503
field8628 40 00:01:54 00:03:50 0.497
field8629 40 00:01:54 00:03:52 0.491
field8909 40 00:01:54 00:03:47 0.503
field8910 40 00:01:54 00:03:50 0.497
field8911 40 00:01:54 00:03:47 0.503
field8912 40 00:01:54 00:03:50 0.497
field9197 40 00:01:54 00:04:26 0.429
field2432 40 00:01:54 00:03:58 0.480
field2603 40 00:01:54 00:03:52 0.491
field2778 40 00:01:54 00:03:52 0.491
field2779 40 00:01:54 00:04:05 0.465
GB63_dither_test OH 44 00:02:05 00:11:18 0.185
GB63_dither OH 48 00:02:17 00:04:38 0.493
GB62_dither OH 48 00:02:17 00:04:32 0.503
GB61_dither OH 48 00:02:17 00:04:35 0.498
GB60_dither OH 48 00:02:17 00:04:32 0.503
GB59_dither OH 48 00:02:17 00:04:41 0.488
GB58_dither OH 48 00:02:17 00:06:38 0.344
GB57_dither OH 48 00:02:17 00:04:41 0.488
GB74_dither OH 52 00:02:28 00:05:40 0.437
GB75_dither OH 48 00:02:17 00:04:38 0.493
GB76_dither OH 48 00:02:17 00:04:38 0.493
GB77_dither OH 48 00:02:17 00:04:38 0.493
GB78_dither OH 48 00:02:17 00:04:41 0.488
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 44 00:02:05 00:04:34 0.459
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB95_dither OH 24 00:01:08 00:02:19 0.493
GB94_dither OH 24 00:01:08 00:02:21 0.484
GB93_dither OH 24 00:01:08 00:02:19 0.493
GB92_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:16 0.503
GB108_dither OH 24 00:01:08 00:02:16 0.503
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 00:02:19 0.493
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 00:02:22 0.483
GB131_dither OH 24 00:01:08 00:02:21 0.484
GB130_dither OH 24 00:01:08 00:02:19 0.493
GB129_dither OH 24 00:01:08 00:02:21 0.483
GB128_dither OH 24 00:01:08 00:02:19 0.493
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 00:02:27 0.465
GCsky 24 00:01:08 00:02:27 0.465










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 118:16:24 265:26:26 0.446

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 1772:26:08 912:37:32 859:48:35 240:44:48 206:21:15 206:21:15 206:21:15 102:32:57
Observed 275:46:37
(15.56%)		 70:10:50
(7.69%)		 205:35:47
(23.91%)		 22:41:37
(9.43%)		 52:33:26
(25.47%)		 111:31:41
(54.05%)		 18:49:02
(9.12%)		 102:32:57
(N/A)
Remaining 1496:39:31
(84.44%)		 842:26:42
(92.31%)		 654:12:48
(76.09%)		 218:03:11
(90.57%)		 153:47:49
(74.53%)		 94:49:34
(45.95%)		 187:32:13
(90.88%)		 00:00:00
(N/A)











Camera status (2025/03/26)



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