PRIME Observation Log 2025/01/10

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

Date: 2025/01/10
Local observer: Ryusei Hamada
Remote observer: #
Weather: clear
Comment:
Detector Temperature: 121.99873 +- 0.01509 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:12:52
Morning 05:16:25
Science Observation
(Sun altitude < -10°)
Start 20:38:02
End 04:51:15
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start --:--:--
End --:--:--


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:54:18 08:13:13 0.962
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 07:54:18 08:13:13 0.962


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 20 00:00:57 00:14:15 0.067
NASA 3860 03:03:59 06:04:52 0.504
OU 1020 00:48:37 01:49:25 0.444


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 20 00:00:57 00:14:15 0.067
all_sky_grid 4356 03:27:38 07:02:00 0.492
ToO 524 00:24:58 00:52:18 0.478


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 12 00:00:34 00:09:04 0.063
FLAT OH 8 00:00:22 00:05:11 0.074
field7135_test 44 00:02:05 00:22:00 0.095
field9931_test 16 00:00:45 00:08:03 0.095
field9931 60 00:02:51 00:06:22 0.448
field10520 60 00:02:51 00:07:49 0.365
field10819 60 00:02:51 00:05:15 0.544
field10821 60 00:02:51 00:05:35 0.512
field9637 60 00:02:51 00:05:51 0.488
field10524 60 00:02:51 00:05:09 0.554
field10822 60 00:02:51 00:05:26 0.525
field11120 60 00:02:51 00:07:32 0.379
field7135 49 00:02:20 00:03:56 0.594
field7134 49 00:02:20 00:03:58 0.587
field7133 49 00:02:20 00:04:01 0.580
field6873 49 00:02:20 00:03:58 0.587
field6872 49 00:02:20 00:04:52 0.480
field6871 49 00:02:20 00:03:58 0.587
field6613 49 00:02:20 00:03:56 0.594
field6614 49 00:02:20 00:03:56 0.594
field6612 49 00:02:20 00:04:07 0.567
field6611 49 00:02:20 00:04:04 0.573
field6359 49 00:02:20 00:03:58 0.587
field6358 49 00:02:20 00:03:56 0.594
field6357 49 00:02:20 00:03:53 0.601
field6356 49 00:02:20 00:08:36 0.271
field6106 49 00:02:20 00:03:56 0.594
field6108 49 00:02:20 00:03:53 0.601
field6107 49 00:02:20 00:03:56 0.594
field6105 49 00:02:20 00:04:21 0.536
field4915 49 00:02:20 00:04:01 0.580
field5146 49 00:02:20 00:04:54 0.475
field13318_test 24 00:01:08 00:06:25 0.178
field13318 500 00:23:50 00:45:52 0.520
field6106_test 12 00:00:34 00:05:12 0.110
field5380 49 00:02:20 00:03:56 0.594
field5381 49 00:02:20 00:04:01 0.580
field6109 49 00:02:20 00:03:53 0.601
field6360 49 00:02:20 00:03:56 0.594
field6361 49 00:02:20 00:03:56 0.594
field6615 49 00:02:20 00:04:01 0.580
field6874 49 00:02:20 00:03:56 0.594
field7136 49 00:02:20 00:04:12 0.554
field5382 49 00:02:20 00:03:53 0.601
field5383 49 00:02:20 00:03:58 0.587
field5384 49 00:02:20 00:03:58 0.587
field5147 49 00:02:20 00:03:56 0.594
field5148 49 00:02:20 00:03:56 0.594
field5149 49 00:02:20 00:03:58 0.587
field4916 49 00:02:20 00:03:53 0.601
field4917 49 00:02:20 00:05:11 0.450
field4918 49 00:02:20 00:03:58 0.587
field4693 49 00:02:20 00:03:53 0.601
field4694 49 00:02:20 00:03:53 0.601
field4695 49 00:02:20 00:04:52 0.480
field5380_test 16 00:00:45 00:06:11 0.123
field4918_test 8 00:00:22 00:03:16 0.116
field4919 49 00:02:20 00:03:56 0.594
field4920 49 00:02:20 00:03:53 0.601
field4921 49 00:02:20 00:03:56 0.594
field4922 49 00:02:20 00:04:04 0.573
field5150 49 00:02:20 00:03:53 0.601
field5151 49 00:02:20 00:03:56 0.594
field5152 49 00:02:20 00:03:56 0.594
field5153 49 00:02:20 00:03:56 0.594
field5385 49 00:02:20 00:03:56 0.594
field5386 49 00:02:20 00:03:56 0.594
field5387 49 00:02:20 00:03:56 0.594
field5388 49 00:02:20 00:03:56 0.594
field5389 49 00:02:20 00:04:01 0.580
field5390 49 00:02:20 00:03:53 0.601
field5391 49 00:02:20 00:03:56 0.594
field5154 49 00:02:20 00:03:53 0.601
field5155 49 00:02:20 00:03:56 0.593
field5156 49 00:02:20 00:03:58 0.587
field4923 49 00:02:20 00:03:58 0.587
field4924 49 00:02:20 00:05:17 0.441
field4919_test 4 00:00:11 00:02:09 0.089
field4925 49 00:02:20 00:03:56 0.594
field4696 49 00:02:20 00:03:56 0.594
field4697 49 00:02:20 00:03:53 0.601
field4698 49 00:02:20 00:03:53 0.601
field4699 49 00:02:20 00:03:56 0.594
field4700 49 00:02:20 00:03:58 0.587
field4701 49 00:02:20 00:04:57 0.471
field4702 49 00:02:20 00:03:58 0.587
field4926 49 00:02:20 00:03:56 0.594
field4927 49 00:02:20 00:04:01 0.580
field4928 49 00:02:20 00:03:58 0.587
field4929 49 00:02:20 00:03:56 0.594
field5157 44 00:02:05 00:03:46 0.556
field5158 24 00:01:08 00:01:45 0.652
field5159 24 00:01:08 00:01:45 0.652
field5160 48 00:02:17 00:07:34 0.302
field5392 24 00:01:08 00:01:59 0.575
field5393 24 00:01:08 00:03:26 0.333
field5394 24 00:01:08 00:01:45 0.652
field5395 24 00:01:08 00:02:32 0.449
field4925_test 12 00:00:34 00:05:14 0.109










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 29:06:14 81:26:56 0.357

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 1877:16:44 945:33:18 931:43:25 260:52:57 223:36:49 223:36:49 223:36:49 02:35:19
Observed 29:06:14
(1.55%)		 00:00:00
(0.00%)		 29:06:14
(3.12%)		 00:00:00
(0.00%)		 04:17:53
(1.92%)		 24:48:20
(11.09%)		 00:00:00
(0.00%)		 02:35:19
(N/A)
Remaining 1848:10:30
(98.45%)		 945:33:18
(100.00%)		 902:37:11
(96.88%)		 260:52:57
(100.00%)		 219:18:55
(98.08%)		 198:48:29
(88.91%)		 223:36:49
(100.00%)		 00:00:00
(N/A)











Camera status (2025/01/10)