PRIME Observation Log 2025/11/28

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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: 2025/11/28
Local observer:
Remote observer: Hamada, suzuki
Weather: clear
Comment:
Detector Temperature: 117.00008 +- 0.00092 K
ImageAcquisitionErrors occurred 2 times @
2025-11-29 02:12:37 SAT
2025-11-29 02:53:16 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:51:55
Morning 04:57:43
Science Observation
(Sun altitude < -10°)
Start 20:16:58
End 04:32:41
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 06:02:44 08:15:43 0.732
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 06:02:44 08:15:43 0.732


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 824 00:39:16 01:30:41 0.433
OU 824 00:39:16 01:30:41 0.433
NASA 824 00:39:16 01:30:41 0.433
ABC 824 00:39:16 01:30:41 0.433


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
offset_all_sky_grid 3296 02:37:06 06:02:44 0.433


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
offset_field16405_test 16 00:00:45 00:06:25 0.119
offset_field16405 40 00:01:54 00:03:59 0.478
offset_field16406 40 00:01:54 00:04:45 0.401
offset_field16407 40 00:01:54 00:04:15 0.448
offset_field16408 40 00:01:54 00:04:13 0.452
offset_field16409 40 00:01:54 00:05:21 0.355
offset_field9952 40 00:01:54 00:03:50 0.497
offset_field10246 40 00:01:54 00:04:09 0.458
offset_field10247 40 00:01:54 00:04:29 0.425
offset_field10248 40 00:01:54 00:04:06 0.463
offset_field10249 40 00:01:54 00:03:52 0.491
offset_field10250 40 00:01:54 00:04:29 0.425
offset_field10251 40 00:01:54 00:04:40 0.408
offset_field10252 40 00:01:54 00:04:06 0.463
offset_field10253 40 00:01:54 00:04:04 0.469
offset_field10254 40 00:01:54 00:04:23 0.434
offset_field10255 40 00:01:54 00:03:50 0.497
offset_field10256 40 00:01:54 00:04:40 0.408
offset_field10257 40 00:01:54 00:04:32 0.420
offset_field10258 40 00:01:54 00:04:04 0.469
offset_field10259 40 00:01:54 00:04:20 0.438
offset_field10542 40 00:01:54 00:04:20 0.438
offset_field10543 40 00:01:54 00:04:15 0.448
offset_field10544 40 00:01:54 00:03:53 0.490
offset_field10545 40 00:01:54 00:04:36 0.413
offset_field10546 40 00:01:54 00:04:06 0.463
offset_field10547 40 00:01:54 00:04:23 0.434
offset_field10548 40 00:01:54 00:03:50 0.497
offset_field10549 40 00:01:54 00:04:06 0.463
offset_field10550 40 00:01:54 00:04:27 0.428
offset_field10551 40 00:01:54 00:04:22 0.435
offset_field10552 40 00:01:54 00:03:52 0.491
offset_field10553 40 00:01:54 00:03:52 0.491
offset_field10554 40 00:01:54 00:04:12 0.453
offset_field10555 40 00:01:54 00:04:15 0.448
offset_field10556 40 00:01:54 00:04:51 0.392
offset_field10557 40 00:01:54 00:03:58 0.480
offset_field10558 40 00:01:54 00:04:23 0.434
offset_field10559 40 00:01:54 00:04:26 0.429
offset_field10560 40 00:01:54 00:04:20 0.438
offset_field10561 40 00:01:54 00:04:06 0.463
offset_field10562 40 00:01:54 00:04:57 0.385
offset_field10563 40 00:01:54 00:03:50 0.497
offset_field10564 40 00:01:54 00:04:15 0.448
offset_field10565 40 00:01:54 00:04:06 0.463
offset_field10566 40 00:01:54 00:03:52 0.491
offset_field10567 40 00:01:54 00:04:12 0.453
offset_field10568 40 00:01:54 00:04:09 0.458
offset_field10569 40 00:01:54 00:03:59 0.478
offset_field10570 40 00:01:54 00:04:56 0.386
offset_field10571 40 00:01:54 00:04:26 0.429
offset_field10572 40 00:01:54 00:08:50 0.216
offset_field10573 40 00:01:54 00:04:06 0.463
offset_field10574 40 00:01:54 00:04:40 0.408
offset_field10575 40 00:01:54 00:04:23 0.434
offset_field10576 40 00:01:54 00:04:09 0.458
offset_field10577 40 00:01:54 00:04:09 0.458
offset_field10578 40 00:01:54 00:04:23 0.434
offset_field10579 40 00:01:54 00:04:06 0.463
offset_field10580 40 00:01:54 00:06:16 0.304
offset_field10581 40 00:01:54 00:03:53 0.490
offset_field10582 40 00:01:54 00:04:39 0.409
offset_field10583 40 00:01:54 00:04:09 0.458
offset_field10584 40 00:01:54 00:04:09 0.458
offset_field10585 40 00:01:54 00:04:06 0.463
offset_field10586 40 00:01:54 00:04:09 0.458
offset_field10587 40 00:01:54 00:04:24 0.433
offset_field10588 40 00:01:54 00:04:20 0.439
offset_field10589 40 00:01:54 00:04:23 0.434
offset_field10590 40 00:01:54 00:04:06 0.463
offset_field10591 40 00:01:54 00:04:06 0.463
offset_field10592 40 00:01:54 00:04:06 0.463
offset_field10593 40 00:01:54 00:03:50 0.497
offset_field10594 40 00:01:54 00:03:55 0.485
offset_field10595 40 00:01:54 00:03:52 0.491
offset_field10596 40 00:01:54 00:04:23 0.434
offset_field10597 40 00:01:54 00:04:23 0.434
offset_field10598 40 00:01:54 00:04:12 0.452
offset_field10599 40 00:01:54 00:04:09 0.458
offset_field10600 40 00:01:54 00:04:17 0.444
offset_field10601 40 00:01:54 00:04:54 0.388
offset_field10602 40 00:01:54 00:04:06 0.463
offset_field10603 40 00:01:54 00:04:36 0.413










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 160:05:51 241:18:29 0.663

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 2053:59:23 1046:02:21 1007:57:02 282:13:34 241:54:29 241:54:29 241:54:29 231:11:21
Observed 1920:46:35
(93.51%)		 1046:02:21
(100.00%)		 874:44:14
(86.78%)		 202:30:01
(71.75%)		 193:55:10
(80.16%)		 315:51:36
(130.57%)		 162:27:25
(67.16%)		 231:11:21
(N/A)
Remaining 133:12:48
(6.49%)		 00:00:00
(0.00%)		 133:12:48
(13.22%)		 79:43:33
(28.25%)		 47:59:18
(19.84%)		 -74:02:53
(0.00%)		 79:27:03
(32.84%)		 00:00:00
(N/A)











Camera status (2025/11/28)



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