PRIME Observation Log 2025/11/19

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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: 2025/11/19
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 117.00007 +- 0.00122 K
ImageAcquisitionErrors occurred 1 times @
2025-11-19 23:55:03 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:43:22
Morning 05:00:55
Science Observation
(Sun altitude < -10°)
Start 20:07:48
End 04:36:28
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:07:48
End 20:13:13


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:34:53 08:28:40 0.894
GB Time 00:00:00 00:05:25 0.000
Non-GB Time 07:34:53 08:23:15 0.904


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 384 00:18:18 01:08:19 0.268
NASA 1820 01:26:45 03:10:35 0.455
SAAO 590 00:28:07 01:28:06 0.319
OU 590 00:28:07 01:28:06 0.319
ABC 590 00:28:07 01:28:06 0.319


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 368 00:17:32 00:51:01 0.344
all_sky_grid 2360 01:52:29 05:52:24 0.319
ToO 1230 00:58:37 01:42:29 0.572
test 16 00:00:45 00:17:18 0.044


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 8 00:00:22 00:10:20 0.037
FLAT OJ 360 00:17:09 00:40:40 0.422
field7640_test 68 00:03:14 00:23:31 0.138
field7640 40 00:01:54 00:05:09 0.369
field7641 40 00:01:54 00:05:19 0.358
field7642 40 00:01:54 00:05:44 0.332
field7643 40 00:01:54 00:06:04 0.314
field7644 40 00:01:54 00:05:47 0.329
field7651 40 00:01:54 00:04:44 0.402
field7652 40 00:01:54 00:05:09 0.369
field7653 40 00:01:54 00:05:14 0.364
field7654 40 00:01:54 00:05:19 0.358
field7655 40 00:01:54 00:05:06 0.373
field7656 40 00:01:54 00:05:09 0.369
field7657 40 00:01:54 00:04:47 0.398
field7658 40 00:01:54 00:04:44 0.402
field7659 40 00:01:54 00:05:32 0.344
field7660 40 00:01:54 00:04:57 0.385
field7661 40 00:01:54 00:05:22 0.355
field7662 40 00:01:54 00:04:47 0.398
field7663 40 00:01:54 00:04:52 0.391
field7679 40 00:01:54 00:04:44 0.402
field7680 40 00:01:54 00:05:06 0.373
field7681 40 00:01:54 00:04:52 0.391
field7682 40 00:01:54 00:04:47 0.398
field7683 40 00:01:54 00:05:09 0.369
field7684 40 00:01:54 00:04:44 0.402
field7685 40 00:01:54 00:09:34 0.199
field7686 40 00:01:54 00:04:59 0.382
field7687 40 00:01:54 00:05:29 0.347
field7688 40 00:01:54 00:04:44 0.402
field7689 40 00:01:54 00:05:29 0.347
field7690 40 00:01:54 00:04:57 0.385
field7691 40 00:01:54 00:09:31 0.200
field7904 28 00:01:20 00:18:00 0.074
field12949_test 12 00:00:34 00:10:01 0.057
field12949 40 00:01:54 00:04:44 0.402
field12950 40 00:01:54 00:04:44 0.402
field12951 40 00:01:54 00:04:47 0.398
field12952 40 00:01:54 00:04:47 0.398
field12953 40 00:01:54 00:04:47 0.398
field12954 40 00:01:54 00:04:47 0.398
field12955 40 00:01:54 00:04:50 0.394
field12956 40 00:01:54 00:04:47 0.398
field12957 40 00:01:54 00:04:50 0.394
field12958 40 00:01:54 00:04:50 0.394
field12959 40 00:01:54 00:07:13 0.264
field12960 40 00:01:54 00:04:50 0.394
field12961 40 00:01:54 00:04:47 0.398
field12962 40 00:01:54 00:04:50 0.394
field12963 40 00:01:54 00:04:52 0.391
field12964 40 00:01:54 00:04:47 0.398
field12965 40 00:01:54 00:04:44 0.402
field12966 40 00:01:54 00:07:32 0.253
field14286_test 20 00:00:57 00:08:57 0.106
field14286 110 00:05:14 00:08:10 0.641
field15233 110 00:05:14 00:08:04 0.649
field15550 110 00:05:14 00:08:07 0.645
field15235 110 00:05:14 00:08:07 0.645
field15867 110 00:05:14 00:08:10 0.641
field16816 110 00:05:14 00:08:07 0.645
field17132 110 00:05:14 00:08:07 0.645
field17448 110 00:05:14 00:08:10 0.641
field18390 110 00:05:14 00:08:13 0.638
field16820 110 00:05:14 00:08:10 0.641
field18703 110 00:05:14 00:12:00 0.437
focus_test 16 00:00:45 00:17:18 0.044
field9645_test 12 00:00:34 00:05:54 0.097
field9645 40 00:01:54 00:04:47 0.398
field9646 40 00:01:54 00:04:47 0.398
field9647 40 00:01:54 00:04:50 0.394
field9648 40 00:01:54 00:04:44 0.402
field9649 40 00:01:54 00:04:44 0.402
field9650 40 00:01:54 00:04:47 0.398
field9651 40 00:01:54 00:06:33 0.290










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 99:49:04 166:07:32 0.601

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 2031:18:07 1045:33:03 985:45:04 276:00:37 236:34:49 236:34:49 236:34:49 222:03:18
Observed 1860:29:51
(91.59%)		 1045:33:03
(100.00%)		 814:56:48
(82.67%)		 188:39:36
(68.35%)		 180:04:46
(76.12%)		 302:01:12
(127.66%)		 144:11:12
(60.95%)		 222:03:18
(N/A)
Remaining 170:48:16
(8.41%)		 00:00:00
(0.00%)		 170:48:16
(17.33%)		 87:21:00
(31.65%)		 56:30:02
(23.88%)		 -66:33:37
(0.00%)		 92:23:36
(39.05%)		 00:00:00
(N/A)











Camera status (2025/11/19)



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