PRIME Observation Log 2025/01/12

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

Date: 2025/01/12
Local observer: Ryusei Hamada
Remote observer: #
Weather: cloudy
Comment:
Detector Temperature: 121.99986 +- 0.00308 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:12:33
Morning 05:18:17
Science Observation
(Sun altitude < -10°)
Start 20:37:36
End 04:53:15
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 03:40:50 08:15:38 0.446
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 03:40:50 08:15:38 0.446


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.)
ALLSKY 36 00:01:42 00:03:54 0.439
NASA 2609 02:04:21 03:37:55 0.571
CALIB 2210 01:45:20 02:54:29 0.604
SAAO 9 00:00:25 00:00:58 0.439
OU 9 00:00:25 00:00:58 0.439
ABC 9 00:00:25 00:00:58 0.439


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 2636 02:05:38 03:40:50 0.569
calibration 2210 01:45:20 02:54:29 0.604


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field5243 4 00:00:11 00:00:33 0.337
field5244 32 00:01:31 00:03:20 0.456
field3044_test 44 00:02:05 00:14:54 0.141
field3044 48 00:02:17 00:03:33 0.643
field3043 48 00:02:17 00:03:36 0.635
field2861 48 00:02:17 00:03:33 0.643
field2860 48 00:02:17 00:03:33 0.643
field2859 48 00:02:17 00:03:39 0.627
field2682 48 00:02:17 00:03:33 0.643
field2681 48 00:02:17 00:03:33 0.643
field2509 48 00:02:17 00:03:36 0.635
field2508 48 00:02:17 00:03:33 0.643
field2341 48 00:02:17 00:03:33 0.643
field2340 48 00:02:17 00:03:33 0.643
field2178 48 00:02:17 00:03:36 0.635
field2177 48 00:02:17 00:03:36 0.635
field2021 48 00:02:17 00:03:33 0.643
field2020 48 00:02:17 00:03:33 0.643
field1869 48 00:02:17 00:03:30 0.652
field1868 48 00:02:17 00:03:36 0.635
field1870 48 00:02:17 00:03:33 0.643
field1871 48 00:02:17 00:03:30 0.652
field2022 48 00:02:17 00:03:30 0.652
field2023 48 00:02:17 00:03:30 0.652
field2179 48 00:02:17 00:03:36 0.635
field2180 48 00:02:17 00:03:33 0.643
field2342 48 00:02:17 00:05:56 0.385
field2343 48 00:02:17 00:03:39 0.627
field2510 48 00:02:17 00:03:30 0.652
field2683 48 00:02:17 00:03:30 0.652
field2684 48 00:02:17 00:03:33 0.643
field2862 48 00:02:17 00:03:36 0.635
field2863 48 00:02:17 00:06:07 0.373
field3045 48 00:02:17 00:03:36 0.635
field3046 48 00:02:17 00:03:33 0.643
field3047 48 00:02:17 00:03:27 0.660
field3048 48 00:02:17 00:03:36 0.635
field3049 48 00:02:17 00:03:33 0.643
field2864 48 00:02:17 00:03:30 0.652
field2865 48 00:02:17 00:03:36 0.635
field2685 48 00:02:17 00:03:33 0.643
field2686 48 00:02:17 00:03:39 0.627
field2511 48 00:02:17 00:03:33 0.643
field2512 48 00:02:17 00:03:30 0.652
field2344 48 00:02:17 00:03:33 0.643
field2181 48 00:02:17 00:03:30 0.652
field2024 48 00:02:17 00:03:33 0.643
field1872 48 00:02:17 00:03:27 0.660
field1873 48 00:02:17 00:03:49 0.598
field1874 24 00:01:08 00:01:45 0.652
field2025 24 00:01:08 00:01:48 0.635
field2026 24 00:01:08 00:01:48 0.635
field2182 24 00:01:08 00:01:45 0.652
field2183 24 00:01:08 00:01:48 0.635
field2345 24 00:01:08 00:01:48 0.635
field2346 24 00:01:08 00:01:50 0.619
field2513 24 00:01:08 00:01:45 0.652
field2514 24 00:01:08 00:01:48 0.635
field2687 24 00:01:08 00:01:48 0.635
field2688 24 00:01:08 00:01:50 0.619
field2866 24 00:01:08 00:01:45 0.652
field2867 24 00:01:08 00:01:48 0.635
field3050 24 00:01:08 00:03:51 0.297
field3045_test 12 00:00:34 00:05:48 0.098
reset 120 00:05:43 00:15:11 0.376
superbias 640 00:30:30 00:53:28 0.571
LSS_H_test 4 00:00:11 00:08:33 0.022
LSS_H 80 00:03:48 00:08:55 0.427
reset_H 10 00:00:28 00:02:18 0.206
NLC_H 211 00:10:03 00:10:35 0.950
LSS_J_test 4 00:00:11 00:04:40 0.041
LSS_J 80 00:03:48 00:16:55 0.225
reset_J 10 00:00:28 00:02:32 0.187
NLC_J 421 00:20:04 00:20:47 0.965
Dark 630 00:30:01 00:30:31 0.984










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 41:01:31 97:57:00 0.419

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 1880:56:59 945:33:18 935:23:40 261:54:37 224:29:40 224:29:40 224:29:40 05:48:33
Observed 41:01:31
(2.18%)		 00:00:00
(0.00%)		 41:01:31
(4.39%)		 00:20:25
(0.13%)		 10:30:33
(4.68%)		 29:50:07
(13.29%)		 00:20:25
(0.15%)		 05:48:33
(N/A)
Remaining 1839:55:28
(97.82%)		 945:33:18
(100.00%)		 894:22:09
(95.61%)		 261:34:12
(99.87%)		 213:59:07
(95.32%)		 194:39:33
(86.71%)		 224:09:15
(99.85%)		 00:00:00
(N/A)











Camera status (2025/01/12)