PRIME Observation Log 2025/11/30

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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: 2025/11/30
Local observer:
Remote observer: Takuto
Weather: clear
Comment:
Detector Temperature: 116.99999 +- 0.00140 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:53:45
Morning 04:57:21
Science Observation
(Sun altitude < -10°)
Start 20:18:54
End 04:32:12
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 08:31:31 08:13:18 1.037
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 08:31:31 08:13:18 1.037


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 284 00:13:32 00:31:52 0.425
SAAO 1202 00:57:17 02:07:52 0.448
OU 1202 00:57:17 02:07:52 0.448
NASA 1202 00:57:17 02:07:52 0.448
ABC 1202 00:57:17 02:07:52 0.448


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 284 00:13:32 00:31:52 0.425
all_sky_grid 336 00:16:00 00:37:22 0.429
offset_all_sky_grid 4472 03:33:09 07:54:08 0.450


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 4 00:00:11 00:01:13 0.156
FLAT OH 280 00:13:20 00:30:39 0.435
field1689_test 16 00:00:45 00:04:35 0.166
field1689 40 00:01:54 00:03:55 0.485
field1833 40 00:01:54 00:04:15 0.448
field1983 40 00:01:54 00:04:01 0.474
field2138 40 00:01:54 00:03:57 0.482
field2139 40 00:01:54 00:04:02 0.472
field2814 40 00:01:54 00:04:06 0.463
field2815 40 00:01:54 00:03:58 0.480
field2997 40 00:01:54 00:04:29 0.425
offset_field4207 40 00:01:54 00:03:58 0.480
offset_field4208 40 00:01:54 00:03:58 0.480
offset_field4209 40 00:01:54 00:04:09 0.458
offset_field4210 40 00:01:54 00:03:50 0.497
offset_field4211 40 00:01:54 00:04:04 0.469
offset_field4212 44 00:02:05 00:04:54 0.427
offset_field4213 32 00:01:31 00:10:47 0.141
offset_field4214 40 00:01:54 00:04:17 0.445
offset_field4215 40 00:01:54 00:03:59 0.478
offset_field4216 40 00:01:54 00:04:01 0.474
offset_field4217 40 00:01:54 00:03:58 0.480
offset_field4218 40 00:01:54 00:04:04 0.469
offset_field4219 40 00:01:54 00:04:09 0.459
offset_field4220 40 00:01:54 00:04:12 0.453
offset_field4221 40 00:01:54 00:04:02 0.473
offset_field4222 40 00:01:54 00:03:52 0.491
offset_field4223 40 00:01:54 00:04:26 0.429
offset_field4224 40 00:01:54 00:04:15 0.448
offset_field4225 40 00:01:54 00:04:15 0.448
offset_field4226 40 00:01:54 00:04:01 0.474
offset_field4227 40 00:01:54 00:04:06 0.465
offset_field4228 40 00:01:54 00:04:10 0.457
offset_field4229 40 00:01:54 00:04:26 0.429
offset_field4230 40 00:01:54 00:04:04 0.469
offset_field4231 40 00:01:54 00:04:32 0.420
offset_field4232 40 00:01:54 00:04:04 0.469
offset_field4233 40 00:01:54 00:04:15 0.448
offset_field4234 40 00:01:54 00:04:12 0.453
offset_field4235 40 00:01:54 00:05:05 0.374
offset_field7422 40 00:01:54 00:04:03 0.470
offset_field7423 40 00:01:54 00:04:21 0.437
offset_field7424 40 00:01:54 00:04:04 0.469
offset_field7692 40 00:01:54 00:04:00 0.475
offset_field7693 40 00:01:54 00:04:07 0.462
offset_field7694 40 00:01:54 00:03:49 0.499
offset_field7695 40 00:01:54 00:04:10 0.457
offset_field7696 40 00:01:54 00:04:20 0.438
offset_field7697 40 00:01:54 00:03:47 0.503
offset_field7698 40 00:01:54 00:04:11 0.454
offset_field7699 40 00:01:54 00:04:29 0.424
offset_field7700 40 00:01:54 00:04:09 0.458
offset_field7701 40 00:01:54 00:03:50 0.497
offset_field7702 40 00:01:54 00:04:01 0.474
offset_field7703 40 00:01:54 00:03:58 0.480
offset_field7704 40 00:01:54 00:04:12 0.453
offset_field7705 40 00:01:54 00:04:15 0.448
offset_field7706 40 00:01:54 00:03:50 0.497
offset_field7707 40 00:01:54 00:04:04 0.469
offset_field7708 40 00:01:54 00:04:01 0.474
offset_field7964 40 00:01:54 00:04:09 0.458
offset_field7965 40 00:01:54 00:04:01 0.474
offset_field7966 40 00:01:54 00:04:09 0.458
offset_field7967 40 00:01:54 00:04:01 0.474
offset_field7968 40 00:01:54 00:03:58 0.480
offset_field7969 40 00:01:54 00:04:01 0.474
offset_field7970 40 00:01:54 00:04:20 0.438
offset_field7971 40 00:01:54 00:04:01 0.474
offset_field7972 40 00:01:54 00:03:58 0.480
offset_field7973 40 00:01:54 00:03:50 0.497
offset_field7974 40 00:01:54 00:04:04 0.469
offset_field7975 40 00:01:54 00:03:52 0.491
offset_field7976 40 00:01:54 00:03:53 0.491
offset_field7977 36 00:01:42 00:03:47 0.453
offset_field7978 40 00:01:54 00:03:50 0.497
offset_field7979 40 00:01:54 00:04:04 0.468
offset_field7980 40 00:01:54 00:04:12 0.454
offset_field7981 40 00:01:54 00:04:07 0.463
offset_field7982 40 00:01:54 00:04:00 0.475
offset_field7983 40 00:01:54 00:04:32 0.421
offset_field7984 40 00:01:54 00:04:01 0.474
offset_field7985 40 00:01:54 00:04:18 0.443
offset_field7986 40 00:01:54 00:04:04 0.469
offset_field7987 40 00:01:54 00:04:04 0.469
offset_field7988 40 00:01:54 00:04:09 0.459
offset_field7989 40 00:01:54 00:04:18 0.443
offset_field7990 40 00:01:54 00:03:50 0.497
offset_field7991 40 00:01:54 00:04:06 0.463
offset_field7992 40 00:01:54 00:04:15 0.448
offset_field7993 40 00:01:54 00:03:50 0.497
offset_field7994 40 00:01:54 00:04:04 0.469
offset_field7995 40 00:01:54 00:04:18 0.443
offset_field7996 40 00:01:54 00:03:50 0.497
offset_field7997 40 00:01:54 00:04:15 0.448
offset_field7998 40 00:01:54 00:04:04 0.469
offset_field7999 40 00:01:54 00:04:04 0.469
offset_field8000 40 00:01:54 00:03:50 0.497
offset_field8001 40 00:01:54 00:04:18 0.443
offset_field8002 40 00:01:54 00:04:32 0.420
offset_field8003 40 00:01:54 00:03:52 0.491
offset_field8004 40 00:01:54 00:04:12 0.453
offset_field8005 40 00:01:54 00:04:15 0.448
offset_field8006 40 00:01:54 00:04:20 0.438
offset_field8007 40 00:01:54 00:03:52 0.491
offset_field8008 40 00:01:54 00:03:55 0.485
offset_field8009 40 00:01:54 00:04:04 0.469
offset_field8010 40 00:01:54 00:04:26 0.429
offset_field8011 40 00:01:54 00:03:58 0.480
offset_field8012 40 00:01:54 00:04:06 0.463
offset_field8013 40 00:01:54 00:05:19 0.358
offset_field10276 40 00:01:54 00:05:14 0.364
offset_field10277 40 00:01:54 00:04:40 0.408
offset_field10278 40 00:01:54 00:04:09 0.458
offset_field10279 40 00:01:54 00:04:09 0.458
offset_field10280 40 00:01:54 00:04:20 0.438
offset_field10281 40 00:01:54 00:03:51 0.493
offset_field10282 40 00:01:54 00:04:19 0.442
offset_field10283 40 00:01:54 00:04:12 0.453
offset_field10284 40 00:01:54 00:04:12 0.453
offset_field10285 40 00:01:54 00:03:55 0.485
offset_field10286 40 00:01:54 00:04:09 0.458
offset_field10287 40 00:01:54 00:04:09 0.458
offset_field10288 40 00:01:54 00:07:03 0.270










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

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 2058:16:10 1046:02:21 1012:13:49 283:25:28 242:56:07 242:56:07 242:56:07 232:20:30
Observed 1933:17:16
(93.93%)		 1046:02:21
(100.00%)		 887:14:55
(87.65%)		 205:37:41
(72.55%)		 197:02:50
(81.11%)		 318:59:16
(131.31%)		 165:35:06
(68.16%)		 232:20:30
(N/A)
Remaining 124:58:54
(6.07%)		 00:00:00
(0.00%)		 124:58:54
(12.35%)		 77:47:46
(27.45%)		 45:53:16
(18.89%)		 -77:56:51
(0.00%)		 77:21:00
(31.84%)		 00:00:00
(N/A)











Camera status (2025/11/30)



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