PRIME Observation Log 2025/11/09

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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: 2025/11/09
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 117.19246 +- 0.12143 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:33:40
Morning 05:07:14
Science Observation
(Sun altitude < -10°)
Start 19:57:23
End 04:43:31
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:57:23
End 20:52:33


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 05:12:41 08:46:08 0.594
GB Time 00:00:00 00:55:09 0.000
Non-GB Time 05:12:41 07:50:58 0.664


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 200 00:09:32 00:21:49 0.437
SAAO 632 00:30:07 01:18:10 0.385
OU 632 00:30:07 01:18:10 0.385
NASA 632 00:30:07 01:18:10 0.385
ABC 632 00:30:07 01:18:10 0.385


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 2528 02:00:30 05:12:41 0.385
TWILIGHT 200 00:09:32 00:21:49 0.437


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field16746_test 4 00:00:11 00:01:18 0.145
field16746 40 00:01:54 00:04:47 0.398
field16747 40 00:01:54 00:06:11 0.308
field1314 40 00:01:54 00:04:50 0.394
field1313 40 00:01:54 00:04:50 0.394
field1312 40 00:01:54 00:06:47 0.280
field12949 40 00:01:54 00:05:43 0.333
field13571 40 00:01:54 00:04:47 0.398
field14512 40 00:01:54 00:04:50 0.394
field14513 40 00:01:54 00:04:47 0.398
field14514 40 00:01:54 00:04:47 0.398
field14515 40 00:01:54 00:04:47 0.398
field14516 40 00:01:54 00:04:50 0.394
field14832 40 00:01:54 00:04:50 0.394
field14833 40 00:01:54 00:04:47 0.398
field14834 40 00:01:54 00:04:47 0.398
field14835 40 00:01:54 00:04:47 0.398
field14836 40 00:01:54 00:04:44 0.402
field15152 40 00:01:54 00:04:52 0.391
field15153 40 00:01:54 00:04:47 0.398
field15154 40 00:01:54 00:04:47 0.398
field15155 40 00:01:54 00:04:47 0.398
field15156 40 00:01:54 00:04:50 0.394
field15157 40 00:01:54 00:04:50 0.394
field15158 40 00:01:54 00:04:47 0.398
field15159 40 00:01:54 00:04:50 0.394
field15160 40 00:01:54 00:04:50 0.394
field15161 40 00:01:54 00:04:44 0.402
field15477 40 00:01:54 00:04:47 0.398
field15478 40 00:01:54 00:04:47 0.398
field15479 40 00:01:54 00:04:52 0.391
field15480 40 00:01:54 00:04:47 0.398
field15796 40 00:01:54 00:04:47 0.398
field15797 40 00:01:54 00:04:50 0.394
field16431 40 00:01:54 00:04:52 0.391
field12970 40 00:01:54 00:04:58 0.383
field9361 40 00:01:54 00:04:50 0.394
field9360 40 00:01:54 00:04:52 0.391
field9072 40 00:01:54 00:04:50 0.394
field9071 40 00:01:54 00:04:44 0.402
field9070 40 00:01:54 00:04:50 0.394
field8785 40 00:01:54 00:04:47 0.398
field8784 40 00:01:54 00:06:25 0.297
field16816 40 00:01:54 00:04:44 0.402
field16817 40 00:01:54 00:04:44 0.402
field16818 40 00:01:54 00:04:50 0.394
field17133 40 00:01:54 00:04:44 0.402
field17134 40 00:01:54 00:04:44 0.402
field16819 40 00:01:54 00:04:47 0.398
field16820 40 00:01:54 00:04:47 0.398
field16821 40 00:01:54 00:04:47 0.398
field16822 40 00:01:54 00:04:47 0.398
field16823 40 00:01:54 00:04:44 0.402
field16824 40 00:01:54 00:04:47 0.398
field16825 40 00:01:54 00:04:47 0.398
field16826 40 00:01:54 00:04:47 0.398
field16827 40 00:01:54 00:04:50 0.394
field17142 40 00:01:54 00:04:47 0.398
field16828 40 00:01:54 00:04:44 0.402
field16829 40 00:01:54 00:04:47 0.398
field16830 40 00:01:54 00:04:47 0.398
field16831 40 00:01:54 00:04:50 0.394
field16832 40 00:01:54 00:04:50 0.394
field16516 40 00:01:54 00:04:44 0.402
field16517 4 00:00:11 00:02:48 0.068
FLAT OJ 200 00:09:32 00:21:49 0.437










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 26:03:46 80:04:27 0.325

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 2000:34:20 1047:21:26 953:12:54 266:54:00 228:46:17 228:46:17 228:46:17 216:59:15
Observed 1786:44:31
(89.31%)		 1045:02:22
(99.78%)		 741:42:08
(77.81%)		 175:28:04
(65.74%)		 166:53:13
(72.95%)		 268:21:10
(117.30%)		 130:59:40
(57.26%)		 216:59:15
(N/A)
Remaining 213:49:48
(10.69%)		 02:19:03
(0.22%)		 211:30:45
(22.19%)		 91:25:56
(34.26%)		 61:53:04
(27.05%)		 -40:25:08
(0.00%)		 97:46:37
(42.74%)		 00:00:00
(N/A)











Camera status (2025/11/09)



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