PRIME Observation Log 2025/11/29

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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: 2025/11/29
Local observer:
Remote observer: Ryo
Weather: clear
Comment:
Detector Temperature: 117.00006 +- 0.00079 K
ImageAcquisitionErrors occurred 1 times @
2025-11-29 22:59:13 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:52:51
Morning 04:57:31
Science Observation
(Sun altitude < -10°)
Start 20:17:56
End 04:32:25
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 03:59:10 08:14:29 0.484
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 03:59:10 08:14:29 0.484


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 296 00:14:06 00:37:16 0.378
SAAO 565 00:26:55 00:59:47 0.450
OU 565 00:26:55 00:59:47 0.450
NASA 565 00:26:55 00:59:47 0.450
ABC 565 00:26:55 00:59:47 0.450


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 296 00:14:06 00:37:16 0.378
all_sky_grid 244 00:11:37 00:26:28 0.439
offset_all_sky_grid 2016 01:36:05 03:32:42 0.452


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 16 00:00:45 00:10:59 0.069
FLAT OJ 280 00:13:20 00:26:16 0.508
field2140_test 4 00:00:11 00:02:42 0.070
field2140 40 00:01:54 00:04:01 0.474
field2636 40 00:01:54 00:03:47 0.503
field2637 40 00:01:54 00:03:48 0.502
field2638 40 00:01:54 00:03:49 0.499
field2639 40 00:01:54 00:04:04 0.469
field2640 40 00:01:54 00:04:15 0.448
offset_field3387 40 00:01:54 00:03:58 0.480
offset_field3388 40 00:01:54 00:03:50 0.497
offset_field3389 40 00:01:54 00:03:50 0.497
offset_field3390 40 00:01:54 00:03:52 0.491
offset_field3391 40 00:01:54 00:03:52 0.491
offset_field3392 80 00:03:48 00:07:51 0.485
offset_field3393 16 00:00:45 00:02:32 0.300
offset_field3394 40 00:01:54 00:04:09 0.458
offset_field3395 40 00:01:54 00:04:26 0.429
offset_field3396 40 00:01:54 00:03:52 0.491
offset_field3397 40 00:01:54 00:04:12 0.453
offset_field3398 40 00:01:54 00:03:50 0.497
offset_field3399 40 00:01:54 00:04:04 0.469
offset_field3400 40 00:01:54 00:03:54 0.487
offset_field3401 40 00:01:54 00:04:15 0.448
offset_field3402 40 00:01:54 00:04:24 0.432
offset_field3403 40 00:01:54 00:03:52 0.491
offset_field3404 40 00:01:54 00:04:01 0.474
offset_field3405 40 00:01:54 00:03:58 0.480
offset_field3406 40 00:01:54 00:03:50 0.497
offset_field3407 40 00:01:54 00:03:54 0.487
offset_field3408 40 00:01:54 00:04:13 0.452
offset_field3409 40 00:01:54 00:04:04 0.469
offset_field3410 40 00:01:54 00:04:04 0.469
offset_field3411 40 00:01:54 00:03:50 0.497
offset_field3412 40 00:01:54 00:03:50 0.497
offset_field3413 40 00:01:54 00:04:15 0.448
offset_field3414 40 00:01:54 00:05:08 0.371
offset_field6129 40 00:01:54 00:03:52 0.491
offset_field6381 40 00:01:54 00:03:58 0.480
offset_field6382 40 00:01:54 00:04:09 0.458
offset_field6383 76 00:03:37 00:11:35 0.312
offset_field6636 40 00:01:54 00:03:50 0.497
offset_field6637 40 00:01:54 00:03:47 0.503
offset_field6638 40 00:01:54 00:03:50 0.497
offset_field6639 40 00:01:54 00:03:47 0.503
offset_field6640 40 00:01:54 00:04:09 0.458
offset_field6641 36 00:01:42 00:04:02 0.424
offset_field6641_test 48 00:02:17 00:08:14 0.277
offset_field6642 40 00:01:54 00:03:47 0.503
offset_field6643 40 00:01:54 00:03:50 0.497
offset_field6644 40 00:01:54 00:04:20 0.438
offset_field6645 40 00:01:54 00:04:12 0.453
offset_field6646 40 00:01:54 00:04:01 0.474
offset_field6647 40 00:01:54 00:04:12 0.453
offset_field6648 40 00:01:54 00:04:09 0.458
offset_field6649 40 00:01:54 00:04:01 0.474
offset_field6650 40 00:01:54 00:04:18 0.443
offset_field6894 40 00:01:54 00:04:28 0.426










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 164:05:01 249:32:58 0.658

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 2053:51:19 1046:02:21 1007:48:57 282:11:18 241:52:33 241:52:33 241:52:33 231:48:38
Observed 1924:45:46
(93.71%)		 1046:02:21
(100.00%)		 878:43:24
(87.19%)		 203:29:48
(72.11%)		 194:54:58
(80.59%)		 316:51:24
(131.00%)		 163:27:13
(67.58%)		 231:48:38
(N/A)
Remaining 129:05:33
(6.29%)		 00:00:00
(0.00%)		 129:05:33
(12.81%)		 78:41:29
(27.89%)		 46:57:34
(19.41%)		 -75:01:09
(0.00%)		 78:25:19
(32.42%)		 00:00:00
(N/A)











Camera status (2025/11/29)



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