PRIME Observation Log 2025/12/13

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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: 2025/12/13
Local observer:
Remote observer: Ryo, ryusei
Weather: clear
Comment:
Detector Temperature: 116.99998 +- 0.00130 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:04:13
Morning 04:58:09
Science Observation
(Sun altitude < -10°)
Start 20:29:55
End 04:32:27
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 07:31:56 08:02:32 0.937
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 07:31:56 08:02:32 0.937


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 524 00:24:58 01:07:18 0.371
NASA 3736 02:58:04 07:31:56 0.394


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 524 00:24:58 01:07:18 0.371
ToO 3736 02:58:04 07:31:56 0.394


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 24 00:01:08 00:15:49 0.072
FLAT OH 500 00:23:50 00:51:29 0.463
field1588_test 28 00:01:20 00:04:53 0.273
field643_test 156 00:07:26 00:18:19 0.406
field643 40 00:01:54 00:04:01 0.474
field1539 40 00:01:54 00:05:53 0.324
field1588 40 00:01:54 00:05:00 0.381
field2298_test 4 00:00:11 00:01:14 0.153
field2298 40 00:01:54 00:03:57 0.483
field2471_test 4 00:00:11 00:00:47 0.239
field2471 40 00:01:54 00:04:54 0.388
field3844_test 24 00:01:08 00:04:19 0.264
field3844 40 00:01:54 00:04:04 0.469
field4466_test 4 00:00:11 00:00:59 0.193
field4466 40 00:01:54 00:04:05 0.466
field4679_test 20 00:00:57 00:04:17 0.222
field4679 40 00:01:54 00:05:16 0.361
field7938_test 8 00:00:22 00:01:41 0.225
field7938 40 00:01:54 00:04:12 0.453
field8224_test 12 00:00:34 00:03:01 0.189
field8224 40 00:01:54 00:06:14 0.306
field8448_test 4 00:00:11 00:00:56 0.203
field8448 40 00:01:54 00:05:44 0.332
field8498_test 4 00:00:11 00:02:51 0.067
field8498 40 00:01:54 00:05:58 0.319
field8739_test 28 00:01:20 00:04:31 0.295
field8739 40 00:01:54 00:03:19 0.574
field8742_test 28 00:01:20 00:04:36 0.289
field8742 40 00:01:54 00:03:55 0.485
field8755_test 4 00:00:11 00:00:50 0.225
field8755 40 00:01:54 00:04:23 0.434
field8768_test 20 00:00:57 00:03:17 0.289
field8768 40 00:01:54 00:04:18 0.443
field9025_test 4 00:00:11 00:00:47 0.239
field9025 40 00:01:54 00:04:12 0.453
field9035_test 16 00:00:45 00:03:09 0.242
field9035 40 00:01:54 00:04:18 0.443
field9289_test 4 00:00:11 00:01:42 0.111
field9345_test 4 00:00:11 00:00:52 0.216
field9345 40 00:01:54 00:04:08 0.460
field9346_test 4 00:00:11 00:00:22 0.503
field9346 40 00:01:54 00:05:50 0.326
field9603 40 00:01:54 00:05:33 0.343
field9656_test 4 00:00:11 00:00:22 0.503
field9656 40 00:01:54 00:04:18 0.443
field9944 40 00:01:54 00:05:16 0.361
field10481 40 00:01:54 00:04:12 0.453
field10496 40 00:01:54 00:04:12 0.453
field10497 40 00:01:54 00:04:11 0.455
field10503 40 00:01:54 00:04:10 0.456
field10769 20 00:00:57 00:02:55 0.326
field11087 40 00:01:54 00:04:18 0.443
field11088 40 00:01:54 00:04:32 0.420
field11089 40 00:01:54 00:03:58 0.480
field11092 40 00:01:54 00:03:58 0.480
field11097 40 00:01:54 00:04:57 0.385
field11138 40 00:01:54 00:06:38 0.287
field11157 40 00:01:54 00:05:39 0.337
field11425 40 00:01:54 00:05:47 0.329
field11474 40 00:01:54 00:05:39 0.337
field11717 40 00:01:54 00:05:19 0.358
field12016 40 00:01:54 00:04:15 0.448
field12640 40 00:01:54 00:04:04 0.469
field12931 40 00:01:54 00:03:52 0.491
field13237 8 00:00:22 00:01:24 0.270
field13239 4 00:00:11 00:00:36 0.311
field13257 40 00:01:54 00:05:47 0.329
field13023 40 00:01:54 00:03:58 0.480
field13328 40 00:01:54 00:05:53 0.324
field13578 40 00:01:54 00:04:26 0.429
field13875 40 00:01:54 00:03:52 0.491
field14185 40 00:01:54 00:05:27 0.349
field14276 40 00:01:54 00:05:34 0.342
field14530 40 00:01:54 00:05:25 0.352
field11798 40 00:01:54 00:04:29 0.425
field14893 40 00:01:54 00:05:25 0.352
field15465 40 00:01:54 00:05:25 0.352
field15530 40 00:01:54 00:04:54 0.388
field15790 40 00:01:54 00:05:05 0.374
field16483 40 00:01:54 00:04:37 0.412
field13035 40 00:01:54 00:04:26 0.429
field17114 40 00:01:54 00:03:52 0.491
field17431 40 00:01:54 00:04:06 0.463
field18366 40 00:01:54 00:04:04 0.469
field18984 40 00:01:54 00:04:28 0.426
field17437 40 00:01:54 00:04:02 0.472
field19916 40 00:01:54 00:04:04 0.469
field20512 40 00:01:54 00:04:11 0.455
field20517 40 00:01:54 00:04:06 0.463
field21111 40 00:01:54 00:04:49 0.395
field12733 40 00:01:54 00:04:34 0.416
field21416 40 00:01:54 00:03:55 0.485
field21706 40 00:01:54 00:04:32 0.420
field15240 40 00:01:54 00:04:20 0.438
field12431 40 00:01:54 00:04:43 0.404
field21719 40 00:01:54 00:04:48 0.396
field11517 40 00:01:54 00:05:05 0.374
field8872 40 00:01:54 00:04:22 0.435
field10618 40 00:01:54 00:04:34 0.416
field16827 40 00:01:54 00:04:32 0.419
field10031 40 00:01:54 00:04:06 0.463
field13682 40 00:01:54 00:03:58 0.480
field12444 40 00:01:54 00:03:58 0.480
field15257 40 00:01:54 00:04:18 0.443
field9176 40 00:01:54 00:04:04 0.469
field13077 40 00:01:54 00:03:52 0.491
field11845 40 00:01:54 00:03:50 0.497
field11847 40 00:01:54 00:03:47 0.503
field12153 40 00:01:54 00:04:08 0.460










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 59:23:01 105:27:51 0.563

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 2064:55:15 1046:02:21 1018:52:54 285:17:12 244:31:53 244:31:53 244:31:53 238:37:10
Observed 1992:40:17
(96.50%)		 1046:02:21
(100.00%)		 946:37:55
(92.91%)		 218:35:27
(76.62%)		 210:00:36
(85.88%)		 339:28:59
(138.83%)		 178:32:52
(73.02%)		 238:37:10
(N/A)
Remaining 72:14:58
(3.50%)		 00:00:00
(0.00%)		 72:14:58
(7.09%)		 66:41:45
(23.38%)		 34:31:17
(14.12%)		 -95:02:55
(0.00%)		 65:59:01
(26.98%)		 00:00:00
(N/A)











Camera status (2025/12/13)



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