PRIME Observation Log 2025/12/07

Return to index
Previous day Next day

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: 2025/12/07
Local observer:
Remote observer: Ryunosuke
Weather: clear
Comment:
Detector Temperature: 116.99994 +- 0.00190 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:59:44
Morning 04:57:05
Science Observation
(Sun altitude < -10°)
Start 20:25:13
End 04:31:36
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 03:13:06 08:06:22 0.397
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 03:13:06 08:06:22 0.397


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 256 00:12:12 00:22:32 0.541
SAAO 461 00:21:58 00:48:16 0.455
OU 461 00:21:58 00:48:16 0.455
NASA 461 00:21:58 00:48:16 0.455
ABC 461 00:21:58 00:48:16 0.455


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
offset_all_sky_grid 1844 01:27:53 03:13:06 0.455
TWILIGHT 256 00:12:12 00:22:32 0.541


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
offset_field10848_test 4 00:00:11 00:00:52 0.219
offset_field10848 40 00:01:54 00:03:51 0.495
offset_field10849 40 00:01:54 00:04:09 0.458
offset_field10850 40 00:01:54 00:04:04 0.469
offset_field10851 40 00:01:54 00:03:55 0.485
offset_field10852 40 00:01:54 00:03:52 0.491
offset_field10853 40 00:01:54 00:04:06 0.463
offset_field10854 40 00:01:54 00:03:52 0.493
offset_field10855 40 00:01:54 00:04:02 0.472
offset_field10856 40 00:01:54 00:04:01 0.474
offset_field10857 40 00:01:54 00:03:55 0.485
offset_field10858 40 00:01:54 00:03:58 0.480
offset_field10859 40 00:01:54 00:03:50 0.497
offset_field10860 40 00:01:54 00:04:06 0.463
offset_field10861 40 00:01:54 00:04:23 0.434
offset_field10862 40 00:01:54 00:04:09 0.458
offset_field10863 40 00:01:54 00:04:20 0.438
offset_field10864 40 00:01:54 00:04:09 0.458
offset_field10865 40 00:01:54 00:04:18 0.443
offset_field10866 40 00:01:54 00:03:52 0.491
offset_field10867 40 00:01:54 00:03:55 0.485
offset_field10868 40 00:01:54 00:04:09 0.458
offset_field10869 40 00:01:54 00:04:09 0.458
offset_field10870 40 00:01:54 00:04:18 0.443
offset_field10871 40 00:01:54 00:04:37 0.412
offset_field10872 40 00:01:54 00:04:09 0.458
offset_field10873 40 00:01:54 00:04:06 0.463
offset_field10874 40 00:01:54 00:03:55 0.485
offset_field10875 40 00:01:54 00:04:12 0.453
offset_field10876 40 00:01:54 00:04:04 0.469
offset_field10877 40 00:01:54 00:04:23 0.434
offset_field10878 40 00:01:54 00:04:20 0.438
offset_field10879 40 00:01:54 00:04:04 0.469
offset_field10880 40 00:01:54 00:03:55 0.485
offset_field10881 40 00:01:54 00:04:09 0.458
offset_field10882 40 00:01:54 00:04:18 0.443
offset_field10883 40 00:01:54 00:04:34 0.416
offset_field10884 40 00:01:54 00:04:06 0.463
offset_field10885 40 00:01:54 00:03:52 0.491
offset_field10886 40 00:01:54 00:04:20 0.438
offset_field10887 40 00:01:54 00:03:55 0.485
offset_field10888 40 00:01:54 00:04:04 0.469
offset_field10889 40 00:01:54 00:04:20 0.438
offset_field10890 40 00:01:54 00:03:52 0.491
offset_field10891 40 00:01:54 00:04:26 0.429
offset_field10892 40 00:01:54 00:04:04 0.469
offset_field10893 40 00:01:54 00:06:41 0.285
FLAT OY 256 00:12:12 00:22:32 0.541










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 31:40:54 57:04:00 0.555

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 2061:25:04 1046:02:21 1015:22:42 284:18:21 243:41:27 243:41:27 243:41:27 235:04:11
Observed 1964:58:10
(95.32%)		 1046:02:21
(100.00%)		 918:55:48
(90.50%)		 213:32:54
(75.11%)		 204:58:04
(84.11%)		 326:54:30
(134.15%)		 173:30:19
(71.20%)		 235:04:11
(N/A)
Remaining 96:26:54
(4.68%)		 00:00:00
(0.00%)		 96:26:54
(9.50%)		 70:45:26
(24.89%)		 38:43:22
(15.89%)		 -84:46:57
(0.00%)		 70:11:07
(28.80%)		 00:00:00
(N/A)











Camera status (2025/12/07)



Return to index
Previous day Next day