PRIME Observation Log 2025/02/12

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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: 2025/02/12
Local observer: Ryusei Hamada
Remote observer: #
Weather: windy
Comment:
Detector Temperature: 111.49966 +- 0.00292 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:53:06
Morning 05:49:07
Science Observation
(Sun altitude < -10°)
Start 20:15:59
End 05:26:14
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 03:04:48
End 05:26:14


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:34:16 09:10:15 0.717
GB Time 00:00:00 02:21:26 0.000
Non-GB Time 06:34:16 06:48:49 0.964


Institute Statistics
- ALLSKY time is equally distributed to each institute
- ToO time is equally distributed to OU, NASA
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
ALLSKY 572 00:27:15 01:19:36 0.342
ToO 3696 02:56:10 03:57:25 0.742
NASA 2749 02:11:02 03:35:51 0.607
CALIB 448 00:21:21 00:46:17 0.461
OU 1991 01:34:54 02:18:36 0.685
SAAO 143 00:06:48 00:19:54 0.342
ABC 143 00:06:48 00:19:54 0.342


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 4268 03:23:26 05:17:01 0.642
ToO 758 00:36:07 01:17:14 0.468
TWILIGHT 448 00:21:21 00:46:17 0.461


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field4253_test 52 00:02:28 00:29:57 0.083
field4253 40 00:01:54 00:03:50 0.497
field4254 40 00:01:54 00:03:50 0.497
field4255 40 00:01:54 00:03:47 0.503
field4256 40 00:01:54 00:03:47 0.503
field4257 40 00:01:54 00:03:47 0.503
field4258 40 00:01:54 00:03:47 0.503
field4259 40 00:01:54 00:03:47 0.503
field4260 40 00:01:54 00:03:47 0.503
field4261 40 00:01:54 00:03:47 0.503
field4262 40 00:01:54 00:03:47 0.503
field4263 40 00:01:54 00:03:47 0.503
field4264 40 00:01:54 00:03:47 0.503
field4265 40 00:01:54 00:04:05 0.465
field1021_test 32 00:01:31 00:09:24 0.162
field1021 330 00:15:43 00:19:46 0.795
field1022 330 00:15:43 00:18:45 0.839
field1023 330 00:15:43 00:18:48 0.837
field1024 330 00:15:43 00:18:53 0.833
field1025 330 00:15:43 00:19:38 0.801
field1136 330 00:15:43 00:19:46 0.795
field1137 330 00:15:43 00:21:36 0.728
field13681_test 28 00:01:20 00:16:11 0.082
field13681 730 00:34:47 01:01:02 0.570
field1138_test 12 00:00:34 00:02:23 0.239
field1138 330 00:15:43 00:18:56 0.830
field1139 330 00:15:43 00:19:41 0.799
field1140 330 00:15:43 00:19:41 0.799
field1141 330 00:15:43 00:19:21 0.812
field1026 22 00:01:02 00:10:40 0.098
FLAT_test OJ 8 00:00:22 00:08:22 0.046
FLAT OJ 440 00:20:58 00:37:54 0.553










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 09:34:48 107:49:23 0.089

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 1818:18:30 928:15:38 890:02:52 249:12:48 213:36:41 213:36:41 213:36:41 30:12:14
Observed 113:10:18
(6.22%)		 00:00:00
(0.00%)		 113:10:18
(12.72%)		 02:43:37
(1.09%)		 26:04:20
(12.21%)		 81:38:42
(38.22%)		 02:43:37
(1.28%)		 30:12:14
(N/A)
Remaining 1705:08:12
(93.78%)		 928:15:38
(100.00%)		 776:52:33
(87.28%)		 246:29:10
(98.91%)		 187:32:20
(87.79%)		 131:57:59
(61.78%)		 210:53:03
(98.72%)		 00:00:00
(N/A)











Camera status (2025/02/12)