PRIME Observation Log 2025/12/02

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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: 2025/12/02
Local observer:
Remote observer: Ryusei, Takuto
Weather: Clear, Cloudy
Comment:
Detector Temperature: 116.99997 +- 0.00052 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:55:31
Morning 04:57:07
Science Observation
(Sun altitude < -10°)
Start 20:20:47
End 04:31:51
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 05:31:17 08:11:04 0.675
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 05:31:17 08:11:04 0.675


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.)
SAAO 734 00:34:59 01:22:49 0.422
OU 734 00:34:59 01:22:49 0.422
NASA 734 00:34:59 01:22:49 0.422
ABC 734 00:34:59 01:22:49 0.422


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
offset_all_sky_grid 2936 02:19:56 05:31:17 0.422


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
offset_field11389_test 8 00:00:22 00:03:53 0.098
offset_field11389 40 00:01:54 00:03:52 0.491
offset_field11390 40 00:01:54 00:04:40 0.408
offset_field11391 40 00:01:54 00:03:52 0.491
offset_field11392 40 00:01:54 00:04:15 0.448
offset_field11393 40 00:01:54 00:04:09 0.458
offset_field11394 40 00:01:54 00:04:06 0.463
offset_field11395 40 00:01:54 00:04:12 0.453
offset_field11396 40 00:01:54 00:04:26 0.429
offset_field11397 40 00:01:54 00:03:52 0.491
offset_field11398 40 00:01:54 00:03:55 0.485
offset_field11399 40 00:01:54 00:05:03 0.377
offset_field11400 40 00:01:54 00:04:45 0.400
offset_field11401 40 00:01:54 00:04:12 0.453
offset_field11402 40 00:01:54 00:04:12 0.453
offset_field11403 40 00:01:54 00:04:23 0.434
offset_field11404 40 00:01:54 00:03:52 0.491
offset_field11405 40 00:01:54 00:04:40 0.408
offset_field11406 40 00:01:54 00:04:09 0.458
offset_field11407 40 00:01:54 00:03:55 0.485
offset_field11408 40 00:01:54 00:04:09 0.458
offset_field11409 40 00:01:54 00:05:00 0.381
offset_field11410 40 00:01:54 00:04:29 0.425
offset_field11411 40 00:01:54 00:04:23 0.434
offset_field11412 40 00:01:54 00:04:09 0.458
offset_field11413 40 00:01:54 00:14:12 0.134
offset_field11140_test 16 00:00:45 00:04:55 0.155
offset_field11140 40 00:01:54 00:04:40 0.408
offset_field11141 40 00:01:54 00:03:58 0.480
offset_field11142 40 00:01:54 00:04:43 0.404
offset_field11143 40 00:01:54 00:04:40 0.408
offset_field11144 40 00:01:54 00:04:09 0.458
offset_field11145 40 00:01:54 00:04:04 0.469
offset_field11146 40 00:01:54 00:04:37 0.412
offset_field11147 40 00:01:54 00:04:20 0.438
offset_field11148 40 00:01:54 00:03:47 0.503
offset_field11149 40 00:01:54 00:04:04 0.469
offset_field11150 40 00:01:54 00:04:20 0.438
offset_field11151 40 00:01:54 00:04:23 0.434
offset_field11152 40 00:01:54 00:04:18 0.443
offset_field11153 40 00:01:54 00:04:06 0.463
offset_field11154 40 00:01:54 00:04:54 0.388
offset_field11442 40 00:01:54 00:04:43 0.403
offset_field11443 40 00:01:54 00:04:34 0.417
offset_field11444 40 00:01:54 00:04:06 0.463
offset_field11445 40 00:01:54 00:03:52 0.491
offset_field11446 40 00:01:54 00:04:40 0.408
offset_field11447 40 00:01:54 00:04:06 0.463
offset_field11448 40 00:01:54 00:04:06 0.463
offset_field11449 40 00:01:54 00:04:09 0.458
offset_field11450 40 00:01:54 00:04:09 0.458
offset_field11451 40 00:01:54 00:03:50 0.497
offset_field11452 40 00:01:54 00:04:20 0.438
offset_field11453 40 00:01:54 00:04:26 0.429
offset_field11454 40 00:01:54 00:04:23 0.434
offset_field11455 40 00:01:54 00:04:37 0.412
offset_field11456 40 00:01:54 00:05:00 0.381
offset_field11457 40 00:01:54 00:04:04 0.469
offset_field11458 40 00:01:54 00:04:06 0.463
offset_field11459 40 00:01:54 00:04:04 0.469
offset_field11460 40 00:01:54 00:06:27 0.296
offset_field11461 40 00:01:54 00:04:09 0.458
offset_field11462 40 00:01:54 00:03:52 0.491
offset_field11463 40 00:01:54 00:04:06 0.463
offset_field11464 40 00:01:54 00:03:52 0.491
offset_field11465 40 00:01:54 00:04:06 0.463
offset_field11466 40 00:01:54 00:03:50 0.497
offset_field11467 40 00:01:54 00:04:32 0.420
offset_field11468 40 00:01:54 00:04:01 0.474
offset_field11469 40 00:01:54 00:04:20 0.438
offset_field11470 40 00:01:54 00:04:04 0.469
offset_field11471 40 00:01:54 00:04:06 0.463
offset_field11472 40 00:01:54 00:03:50 0.497
offset_field11473 40 00:01:54 00:03:50 0.497
offset_field11474 32 00:01:31 00:03:34 0.427










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 11:00:52 16:23:14 0.672

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 2061:05:25 1046:02:21 1015:03:03 284:12:51 243:36:44 243:36:44 243:36:44 232:45:14
Observed 1944:18:08
(94.33%)		 1046:02:21
(100.00%)		 898:15:46
(88.49%)		 208:22:54
(73.32%)		 199:48:03
(82.02%)		 321:44:29
(132.07%)		 168:20:19
(69.10%)		 232:45:14
(N/A)
Remaining 116:47:17
(5.67%)		 00:00:00
(0.00%)		 116:47:17
(11.51%)		 75:49:57
(26.68%)		 43:48:40
(17.98%)		 -79:52:15
(0.00%)		 75:16:25
(30.90%)		 00:00:00
(N/A)











Camera status (2025/12/02)



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