PRIME Observation Log 2025/01/13

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Observation Log (Time is in UT)

Date: 2025/01/13
Local observer: Ryusei Hamada
Remote observer: #
Weather: mostly clear
Comment:
Detector Temperature: 121.99976 +- 0.00240 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:12:21
Morning 05:19:14
Science Observation
(Sun altitude < -10°)
Start 20:37:19
End 04:54:16
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 08:04:55 08:16:55 0.976
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 08:04:55 08:16:55 0.976


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 260 00:12:23 00:42:49 0.289
NASA 4649 03:41:36 07:30:36 0.492
ALLSKY 272 00:12:57 00:45:45 0.283
SAAO 68 00:03:14 00:11:26 0.283
OU 68 00:03:14 00:11:26 0.283
ABC 68 00:03:14 00:11:26 0.283


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 260 00:12:23 00:42:49 0.289
all_sky_grid 4853 03:51:19 08:04:55 0.477


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 00:01:04 0.177
FLAT ZO 160 00:07:37 00:20:25 0.373
field1873_test 32 00:01:31 00:14:17 0.107
field1873 48 00:02:17 00:03:36 0.635
field1874 48 00:02:17 00:03:36 0.635
field2025 48 00:02:17 00:03:33 0.643
field2026 48 00:02:17 00:03:33 0.643
field2182 48 00:02:17 00:03:33 0.643
field2183 48 00:02:17 00:03:33 0.643
field2345 48 00:02:17 00:03:36 0.635
field2346 48 00:02:17 00:03:36 0.635
field2513 48 00:02:17 00:03:30 0.652
field2514 48 00:02:17 00:03:30 0.652
field2687 48 00:02:17 00:03:36 0.635
field2688 48 00:02:17 00:03:33 0.643
field2866 48 00:02:17 00:03:36 0.635
field2867 48 00:02:17 00:03:33 0.643
field3050 48 00:02:17 00:06:02 0.379
field3045_test 8 00:00:22 00:05:28 0.070
field3045 24 00:01:08 00:01:48 0.635
field3046 24 00:01:08 00:01:48 0.635
field3047 24 00:01:08 00:01:48 0.635
field3048 24 00:01:08 00:01:45 0.652
field3049 24 00:01:08 00:01:48 0.635
field2864 24 00:01:08 00:01:48 0.635
field2865 24 00:01:08 00:01:45 0.652
field2685 24 00:01:08 00:01:48 0.635
field2686 24 00:01:08 00:01:50 0.619
field2511 24 00:01:08 00:01:45 0.652
field2512 24 00:01:08 00:01:45 0.652
field2344 24 00:01:08 00:01:45 0.652
field2181 24 00:01:08 00:01:45 0.652
field2024 24 00:01:08 00:01:42 0.669
field1872 24 00:01:08 00:01:48 0.635
field3051 48 00:02:17 00:03:36 0.635
field3052 48 00:02:17 00:03:33 0.643
field3053 48 00:02:17 00:03:30 0.652
field2868 48 00:02:17 00:03:36 0.635
field2869 48 00:02:17 00:03:33 0.643
field2689 48 00:02:17 00:03:33 0.643
field2690 48 00:02:17 00:03:39 0.627
field2515 48 00:02:17 00:03:36 0.635
field2516 48 00:02:17 00:03:33 0.643
field2347 48 00:02:17 00:03:36 0.635
field2348 48 00:02:17 00:03:39 0.627
field2184 48 00:02:17 00:03:30 0.652
field2185 48 00:02:17 00:03:27 0.660
field2027 48 00:02:17 00:03:33 0.643
field2028 48 00:02:17 00:03:30 0.652
field1875 48 00:02:17 00:03:33 0.643
field1876 48 00:02:17 00:03:30 0.652
field1877 48 00:02:17 00:03:27 0.660
field2029 48 00:02:17 00:03:33 0.643
field2186 48 00:02:17 00:03:33 0.643
field2187 48 00:02:17 00:03:30 0.652
field2349 48 00:02:17 00:03:36 0.635
field2350 48 00:02:17 00:03:39 0.627
field2517 48 00:02:17 00:03:36 0.635
field2518 48 00:02:17 00:03:33 0.643
field2691 48 00:02:17 00:03:33 0.643
field2870 48 00:02:17 00:03:33 0.643
field2871 48 00:02:17 00:03:41 0.619
field3054 48 00:02:17 00:03:33 0.643
field3055 48 00:02:17 00:21:38 0.106
field3052_test 8 00:00:22 00:04:26 0.086
field7135_test 28 00:01:20 00:23:54 0.056
field7135 24 00:01:08 00:01:42 0.669
field7134 24 00:01:08 00:01:48 0.635
field7133 24 00:01:08 00:01:45 0.652
field6873 24 00:01:08 00:01:45 0.652
field6872 24 00:01:08 00:01:45 0.652
field6871 24 00:01:08 00:01:45 0.652
field6613 24 00:01:08 00:01:45 0.652
field6614 24 00:01:08 00:01:46 0.645
field6612 24 00:01:08 00:01:49 0.625
field6611 24 00:01:08 00:01:45 0.652
field6359 24 00:01:08 00:02:02 0.562
field6358 24 00:01:08 00:01:45 0.652
field6357 24 00:01:08 00:01:45 0.652
field6356 24 00:01:08 00:01:45 0.652
field6106 24 00:01:08 00:01:45 0.652
field6108 24 00:01:08 00:01:42 0.669
field6107 24 00:01:08 00:01:45 0.652
field6105 24 00:01:08 00:01:48 0.635
field4688 24 00:01:08 00:01:45 0.652
field4915 24 00:01:08 00:01:48 0.635
field5146 24 00:01:08 00:02:38 0.433
field5380 24 00:01:08 00:01:45 0.652
field5381 24 00:01:08 00:01:48 0.635
field6109 24 00:01:08 00:01:42 0.669
field6360 24 00:01:08 00:01:45 0.652
field6361 24 00:01:08 00:01:45 0.652
field6615 24 00:01:08 00:01:42 0.669
field6874 24 00:01:08 00:01:45 0.652
field7136 24 00:01:08 00:01:48 0.635
field5382 24 00:01:08 00:03:48 0.300
field5154 24 00:01:08 00:01:45 0.652
field5155 24 00:01:08 00:01:45 0.652
field5156 24 00:01:08 00:01:48 0.635
field4923 24 00:01:08 00:01:42 0.669
field4924 24 00:01:08 00:01:45 0.652
field4925 24 00:01:08 00:01:45 0.652
field4696 24 00:01:08 00:01:45 0.652
field4697 24 00:01:08 00:01:45 0.652
field4698 24 00:01:08 00:01:45 0.652
field4699 24 00:01:08 00:01:48 0.635
field4476 24 00:01:08 00:01:45 0.652
field4477 24 00:01:08 00:02:24 0.475
field4478 24 00:01:08 00:01:42 0.669
field4479 24 00:01:08 00:01:45 0.651
field4480 24 00:01:08 00:01:48 0.635
field4700 24 00:01:08 00:01:45 0.652
field4701 24 00:01:08 00:01:45 0.652
field4702 24 00:01:08 00:01:42 0.669
field4929 24 00:01:08 00:01:45 0.652
field4928 24 00:01:08 00:01:45 0.652
field4926 24 00:01:08 00:01:45 0.652
field4927 24 00:01:08 00:01:48 0.635
field5157 24 00:01:08 00:01:45 0.652
field5158 24 00:01:08 00:01:42 0.669
field5159 24 00:01:08 00:01:45 0.652
field5160 24 00:01:08 00:01:45 0.652
field5394 24 00:01:08 00:01:45 0.652
field5392 24 00:01:08 00:01:45 0.652
field5393 24 00:01:08 00:01:45 0.652
field5395 24 00:01:08 00:04:50 0.236
field3426_test 45 00:02:08 00:21:28 0.100
field3426 25 00:01:11 00:02:10 0.547
field3427 25 00:01:11 00:02:10 0.547
field3232 25 00:01:11 00:02:10 0.547
field3233 25 00:01:11 00:02:13 0.535
field3043 25 00:01:11 00:02:10 0.547
field3044 25 00:01:11 00:02:10 0.547
field2859 25 00:01:11 00:02:10 0.547
field2860 25 00:01:11 00:02:10 0.547
field2861 25 00:01:11 00:02:13 0.535
field2681 25 00:01:11 00:02:10 0.547
field2682 25 00:01:11 00:02:07 0.559
field2508 25 00:01:11 00:02:10 0.547
field2509 25 00:01:11 00:02:13 0.535
field2340 25 00:01:11 00:02:10 0.547
field2341 25 00:01:11 00:02:13 0.535
field2177 25 00:01:11 00:02:10 0.547
field2342 25 00:01:11 00:02:10 0.547
field2343 25 00:01:11 00:02:07 0.559
field2510 25 00:01:11 00:02:10 0.547
field2683 25 00:01:11 00:07:47 0.153
FLAT_test OH 8 00:00:22 00:13:30 0.028
field6461_test 32 00:01:31 00:18:37 0.082
field6461 40 00:01:54 00:03:50 0.497
field6462 40 00:01:54 00:03:50 0.497
field6463 40 00:01:54 00:03:50 0.497
field6464 40 00:01:54 00:03:50 0.497
field6465 40 00:01:54 00:03:52 0.491
field6466 40 00:01:54 00:07:53 0.241
FLAT OH 88 00:04:11 00:07:48 0.538










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 49:06:26 106:13:56 0.462

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 1884:53:26 945:33:18 939:20:08 263:00:50 225:26:25 225:26:25 225:26:25 06:31:22
Observed 49:06:26
(2.61%)		 00:00:00
(0.00%)		 49:06:26
(5.23%)		 00:31:51
(0.20%)		 10:41:59
(4.75%)		 37:20:44
(16.57%)		 00:31:51
(0.24%)		 06:31:22
(N/A)
Remaining 1835:47:00
(97.39%)		 945:33:18
(100.00%)		 890:13:41
(94.77%)		 262:28:58
(99.80%)		 214:44:26
(95.25%)		 188:05:41
(83.43%)		 224:54:34
(99.76%)		 00:00:00
(N/A)











Camera status (2025/01/13)