PRIME Observation Log 2025/11/20

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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: 2025/11/20
Local observer:
Remote observer: Takuto, Ryo
Weather: Clear
Comment:
Detector Temperature: 116.99999 +- 0.00113 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:44:20
Morning 05:00:26
Science Observation
(Sun altitude < -10°)
Start 20:08:51
End 04:35:56
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 08:38:51 08:27:04 1.023
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 08:38:51 08:27:04 1.023


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 308 00:14:40 00:44:48 0.328
SAAO 944 00:44:59 02:09:42 0.347
OU 944 00:44:59 02:09:42 0.347
NASA 944 00:44:59 02:09:42 0.347
ABC 944 00:44:59 02:09:42 0.347


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 308 00:14:40 00:44:48 0.328
all_sky_grid 3776 02:59:59 08:38:51 0.347


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test ZO 28 00:01:20 00:08:58 0.149
FLAT ZO 280 00:13:20 00:35:50 0.372
field5057_test 44 00:02:05 00:14:36 0.144
field5057 40 00:01:54 00:04:44 0.402
field5058 40 00:01:54 00:05:04 0.376
field5291 40 00:01:54 00:05:20 0.356
field7847 40 00:01:54 00:05:04 0.376
field12241 40 00:01:54 00:05:12 0.366
field12242 40 00:01:54 00:05:32 0.344
field11032 40 00:01:54 00:05:09 0.369
field11033 40 00:01:54 00:05:20 0.356
field11034 40 00:01:54 00:05:04 0.376
field11035 40 00:01:54 00:04:50 0.394
field11036 40 00:01:54 00:04:50 0.394
field11037 40 00:01:54 00:04:56 0.386
field12251 40 00:01:54 00:05:20 0.357
field12252 40 00:01:54 00:05:15 0.363
field12253 40 00:01:54 00:04:58 0.383
field12561 40 00:01:54 00:05:15 0.363
field12562 40 00:01:54 00:05:01 0.380
field12563 40 00:01:54 00:06:54 0.276
field17336_test 8 00:00:22 00:05:22 0.071
field17336 40 00:01:54 00:04:50 0.393
field17337 40 00:01:54 00:04:55 0.388
field17338 40 00:01:54 00:05:09 0.369
field17339 40 00:01:54 00:05:01 0.380
field17340 40 00:01:54 00:05:04 0.376
field17341 40 00:01:54 00:05:18 0.360
field17342 40 00:01:54 00:04:56 0.386
field17658 40 00:01:54 00:04:57 0.384
field17659 40 00:01:54 00:05:01 0.380
field17660 40 00:01:54 00:04:47 0.398
field17661 40 00:01:54 00:04:50 0.394
field17662 40 00:01:54 00:04:52 0.391
field20448 40 00:01:54 00:05:32 0.344
field17349 40 00:01:54 00:05:29 0.347
field17350 40 00:01:54 00:04:50 0.394
field20147 40 00:01:54 00:04:47 0.398
field20148 40 00:01:54 00:05:04 0.376
field20149 40 00:01:54 00:05:04 0.376
field20150 40 00:01:54 00:05:06 0.373
field20151 40 00:01:54 00:05:12 0.366
field20152 40 00:01:54 00:05:09 0.369
field20153 40 00:01:54 00:04:58 0.383
field20154 40 00:01:54 00:04:58 0.383
field20155 40 00:01:54 00:05:46 0.330
field17989 40 00:01:54 00:05:04 0.376
field17990 40 00:01:54 00:04:52 0.391
field17991 40 00:01:54 00:05:04 0.376
field17992 40 00:01:54 00:05:01 0.380
field17993 40 00:01:54 00:05:04 0.376
field17994 40 00:01:54 00:04:52 0.391
field17995 40 00:01:54 00:04:47 0.398
field17996 40 00:01:54 00:05:01 0.380
field17997 40 00:01:54 00:04:44 0.402
field17998 40 00:01:54 00:05:37 0.339
field17999 40 00:01:54 00:04:44 0.402
field18000 40 00:01:54 00:04:57 0.384
field18313 40 00:01:54 00:05:24 0.353
field18602 40 00:01:54 00:04:45 0.400
field18603 40 00:01:54 00:04:43 0.404
field18604 40 00:01:54 00:04:44 0.402
field18605 40 00:01:54 00:05:12 0.366
field18606 40 00:01:54 00:05:01 0.380
field18607 40 00:01:54 00:05:01 0.380
field18608 40 00:01:54 00:05:15 0.363
field18609 40 00:01:54 00:05:12 0.366
field18610 40 00:01:54 00:05:01 0.380
field18611 40 00:01:54 00:05:29 0.347
field18612 40 00:01:54 00:04:44 0.402
field18613 40 00:01:54 00:04:44 0.402
field18614 40 00:01:54 00:04:47 0.398
field18615 40 00:01:54 00:04:58 0.383
field18616 40 00:01:54 00:05:01 0.379
field18617 40 00:01:54 00:05:03 0.377
field18618 40 00:01:54 00:04:53 0.390
field18619 40 00:01:54 00:05:03 0.377
field18620 40 00:01:54 00:05:01 0.380
field18621 40 00:01:54 00:05:04 0.376
field18622 40 00:01:54 00:05:26 0.350
field18623 40 00:01:54 00:05:37 0.339
field18624 40 00:01:54 00:04:47 0.398
field18312 40 00:01:54 00:05:27 0.350
field13575 40 00:01:54 00:18:39 0.102
field22595_test 124 00:05:54 00:23:23 0.253
field22595 40 00:01:54 00:05:12 0.366
field22596 40 00:01:54 00:05:06 0.373
field22597 40 00:01:54 00:05:26 0.350
field22598 40 00:01:54 00:05:01 0.380
field22599 40 00:01:54 00:05:12 0.366
field22600 40 00:01:54 00:05:18 0.360
field22601 40 00:01:54 00:04:47 0.398
field22602 40 00:01:54 00:05:09 0.369
field22603 40 00:01:54 00:04:47 0.398
field22604 40 00:01:54 00:08:39 0.220










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 108:27:55 174:34:37 0.621

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 2035:43:26 1045:33:03 990:10:23 277:14:54 237:38:29 237:38:29 237:38:29 222:48:07
Observed 1869:08:42
(91.82%)		 1045:33:03
(100.00%)		 823:35:39
(83.18%)		 190:49:19
(68.83%)		 182:14:28
(76.69%)		 304:10:55
(128.00%)		 146:20:55
(61.58%)		 222:48:07
(N/A)
Remaining 166:34:43
(8.18%)		 00:00:00
(0.00%)		 166:34:43
(16.82%)		 86:25:34
(31.17%)		 55:24:00
(23.31%)		 -67:27:35
(0.00%)		 91:17:33
(38.42%)		 00:00:00
(N/A)











Camera status (2025/11/20)



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