PRIME Observation Log 2025/12/03

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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: 2025/12/03
Local observer:
Remote observer: Ryo
Weather: clear
Comment:
Detector Temperature: 116.99992 +- 0.00123 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:56:24
Morning 04:57:03
Science Observation
(Sun altitude < -10°)
Start 20:21:42
End 04:31:44
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 08:05:26 08:10:01 0.991
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 08:05:26 08:10:01 0.991


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 592 00:28:13 01:07:23 0.419
SAAO 1164 00:55:29 02:01:21 0.457
OU 1164 00:55:29 02:01:21 0.457
NASA 1164 00:55:29 02:01:21 0.457
ABC 1164 00:55:29 02:01:21 0.457


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 592 00:28:13 01:07:23 0.419
offset_all_sky_grid 4656 03:41:56 08:05:26 0.457


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test ZO 24 00:01:08 00:13:12 0.087
FLAT ZO 568 00:27:04 00:54:11 0.500
offset_field10783_test 16 00:00:45 00:04:38 0.164
offset_field10783 40 00:01:54 00:03:55 0.485
offset_field10784 40 00:01:54 00:03:52 0.491
offset_field10785 40 00:01:54 00:03:50 0.497
offset_field10786 40 00:01:54 00:03:50 0.497
offset_field10787 40 00:01:54 00:03:55 0.485
offset_field10788 40 00:01:54 00:03:52 0.491
offset_field10789 40 00:01:54 00:03:52 0.491
offset_field10790 40 00:01:54 00:03:58 0.480
offset_field10791 40 00:01:54 00:03:52 0.491
offset_field10792 40 00:01:54 00:04:06 0.463
offset_field10793 40 00:01:54 00:03:52 0.491
offset_field10794 40 00:01:54 00:03:52 0.491
offset_field10795 40 00:01:54 00:04:04 0.469
offset_field10796 40 00:01:54 00:04:34 0.417
offset_field10797 40 00:01:54 00:05:36 0.340
offset_field10798 40 00:01:54 00:04:10 0.457
offset_field10799 40 00:01:54 00:03:55 0.485
offset_field10800 40 00:01:54 00:03:55 0.485
offset_field10801 40 00:01:54 00:03:52 0.491
offset_field10802 40 00:01:54 00:04:22 0.435
offset_field10803 40 00:01:54 00:05:17 0.360
offset_field10804 40 00:01:54 00:03:55 0.486
offset_field10805 40 00:01:54 00:03:52 0.491
offset_field10806 40 00:01:54 00:03:55 0.485
offset_field10807 40 00:01:54 00:03:55 0.485
offset_field10808 40 00:01:54 00:03:52 0.491
offset_field10809 40 00:01:54 00:03:50 0.497
offset_field10810 40 00:01:54 00:03:52 0.491
offset_field10811 40 00:01:54 00:04:43 0.404
offset_field9660 40 00:01:54 00:03:50 0.497
offset_field9661 40 00:01:54 00:03:50 0.497
offset_field9662 40 00:01:54 00:05:00 0.381
offset_field9663 40 00:01:54 00:03:52 0.491
offset_field9953 40 00:01:54 00:03:47 0.503
offset_field9954 40 00:01:54 00:03:50 0.497
offset_field9955 40 00:01:54 00:03:50 0.497
offset_field9956 40 00:01:54 00:03:58 0.480
offset_field9957 40 00:01:54 00:05:13 0.365
offset_field9958 40 00:01:54 00:04:38 0.410
offset_field9959 40 00:01:54 00:03:50 0.497
offset_field9960 40 00:01:54 00:03:47 0.503
offset_field9961 40 00:01:54 00:03:50 0.497
offset_field9962 40 00:01:54 00:03:47 0.503
offset_field9963 40 00:01:54 00:03:47 0.503
offset_field9964 40 00:01:54 00:03:47 0.503
offset_field9965 40 00:01:54 00:03:47 0.503
offset_field9966 40 00:01:54 00:03:47 0.503
offset_field9967 40 00:01:54 00:04:08 0.460
offset_field9968 40 00:01:54 00:05:16 0.361
offset_field9969 40 00:01:54 00:04:05 0.467
offset_field9970 40 00:01:54 00:03:50 0.497
offset_field9971 40 00:01:54 00:03:50 0.497
offset_field9972 40 00:01:54 00:03:47 0.503
offset_field9973 40 00:01:54 00:04:28 0.426
offset_field9974 40 00:01:54 00:05:09 0.370
offset_field9975 40 00:01:54 00:03:50 0.497
offset_field9976 40 00:01:54 00:03:50 0.497
offset_field9977 40 00:01:54 00:04:01 0.474
offset_field9978 40 00:01:54 00:03:52 0.491
offset_field9979 40 00:01:54 00:03:47 0.503
offset_field9980 40 00:01:54 00:03:47 0.503
offset_field9981 40 00:01:54 00:03:47 0.503
offset_field9982 40 00:01:54 00:03:47 0.503
offset_field9983 40 00:01:54 00:03:47 0.503
offset_field9984 40 00:01:54 00:03:50 0.497
offset_field9985 40 00:01:54 00:03:50 0.497
offset_field9986 40 00:01:54 00:03:50 0.497
offset_field9987 40 00:01:54 00:03:50 0.497
offset_field9988 40 00:01:54 00:03:50 0.497
offset_field9989 40 00:01:54 00:03:50 0.497
offset_field9990 40 00:01:54 00:03:50 0.497
offset_field9991 40 00:01:54 00:04:18 0.443
offset_field10260 40 00:01:54 00:03:52 0.491
offset_field10261 40 00:01:54 00:03:52 0.491
offset_field10262 40 00:01:54 00:06:01 0.316
offset_field10263 40 00:01:54 00:05:14 0.364
offset_field10264 40 00:01:54 00:03:55 0.485
offset_field10265 40 00:01:54 00:03:50 0.497
offset_field10266 40 00:01:54 00:03:55 0.485
offset_field10267 40 00:01:54 00:03:52 0.491
offset_field10268 40 00:01:54 00:05:41 0.335
offset_field10269 40 00:01:54 00:05:00 0.381
offset_field10270 40 00:01:54 00:03:52 0.491
offset_field10271 40 00:01:54 00:04:01 0.474
offset_field10272 40 00:01:54 00:03:55 0.485
offset_field10273 40 00:01:54 00:03:50 0.497
offset_field10274 40 00:01:54 00:03:58 0.480
offset_field10275 40 00:01:54 00:04:06 0.463
offset_field10289 40 00:01:54 00:03:47 0.503
offset_field10290 40 00:01:54 00:03:50 0.497
offset_field10291 40 00:01:54 00:03:50 0.497
offset_field10292 40 00:01:54 00:03:52 0.491
offset_field10293 40 00:01:54 00:03:50 0.497
offset_field10294 40 00:01:54 00:04:15 0.449
offset_field10295 40 00:01:54 00:05:56 0.321
offset_field10296 40 00:01:54 00:04:23 0.434
offset_field10297 40 00:01:54 00:03:55 0.485
offset_field10298 40 00:01:54 00:03:52 0.491
offset_field10299 40 00:01:54 00:03:52 0.491
offset_field10300 40 00:01:54 00:03:50 0.497
offset_field10301 40 00:01:54 00:03:50 0.497
offset_field10302 40 00:01:54 00:03:50 0.497
offset_field10303 40 00:01:54 00:03:50 0.497
offset_field10304 40 00:01:54 00:03:50 0.497
offset_field10305 40 00:01:54 00:03:50 0.497
offset_field10306 40 00:01:54 00:03:50 0.497
offset_field10307 40 00:01:54 00:06:35 0.289
offset_field13018 40 00:01:54 00:04:46 0.400
offset_field13019 40 00:01:54 00:03:52 0.491
offset_field13020 40 00:01:54 00:03:52 0.491
offset_field13021 40 00:01:54 00:03:58 0.480
offset_field13022 40 00:01:54 00:04:29 0.425
offset_field13023 40 00:01:54 00:05:53 0.323
offset_field13024 40 00:01:54 00:03:52 0.491
offset_field13025 40 00:01:54 00:03:52 0.491
offset_field13026 40 00:01:54 00:07:00 0.272










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 158:57:47 319:07:20 0.498
Apr 161:02:39 338:08:53 0.476
May 244:24:55 372:31:50 0.656
Jun 209:59:39 370:50:11 0.566
Jul 224:49:02 377:25:14 0.596
Aug 230:19:15 357:22:01 0.644
Sep 190:24:38 318:36:32 0.598
Oct 183:24:57 296:59:20 0.618
Nov 172:36:33 257:46:16 0.670
Dec 19:06:19 24:33:16 0.778

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 2065:05:50 1046:02:21 1019:03:29 285:20:10 244:34:26 244:34:26 244:34:26 233:52:38
Observed 1952:23:34
(94.54%)		 1046:02:21
(100.00%)		 906:21:13
(88.94%)		 210:24:15
(73.74%)		 201:49:25
(82.52%)		 323:45:51
(132.38%)		 170:21:40
(69.66%)		 233:52:38
(N/A)
Remaining 112:42:16
(5.46%)		 00:00:00
(0.00%)		 112:42:16
(11.06%)		 74:55:54
(26.26%)		 42:45:00
(17.48%)		 -80:48:35
(0.00%)		 74:12:45
(30.34%)		 00:00:00
(N/A)











Camera status (2025/12/03)



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