PRIME Observation Log 2025/01/23

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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: 2025/01/23
Local observer: Ryusei, Daisuke, Takuto
Remote observer: #
Weather: clear
Comment:
Detector Temperature: 122.00739 +- 0.03900 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:08:36
Morning 05:29:10
Science Observation
(Sun altitude < -10°)
Start 20:32:54
End 05:04:52
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 04:23:26
End 05:04:52


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 00:03:48 08:31:58 0.007
GB Time 00:00:00 00:41:26 0.000
Non-GB Time 00:03:48 07:50:31 0.008


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.)
ALLSKY 36 00:01:42 00:03:48 0.450
CALIB 792 00:37:45 05:52:44 0.107
SAAO 9 00:00:25 00:00:57 0.450
OU 9 00:00:25 00:00:57 0.450
NASA 9 00:00:25 00:00:57 0.450
ABC 9 00:00:25 00:00:57 0.450


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 36 00:01:42 00:03:48 0.450
test 792 00:37:45 05:52:44 0.107


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field8597 16 00:00:45 00:01:36 0.474
field8598 20 00:00:57 00:02:12 0.432
thermal_sky 12 00:00:34 00:07:17 0.078
sky_sky 24 00:01:08 00:05:26 0.211
hartmann_focus 756 00:36:02 05:40:00 0.106










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 103:35:29 190:22:51 0.544

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 1897:18:02 943:56:18 953:21:43 266:56:28 228:48:24 228:48:24 228:48:24 19:43:37
Observed 103:35:29
(5.46%)		 00:00:00
(0.00%)		 103:35:29
(10.87%)		 02:23:43
(0.90%)		 23:45:44
(10.39%)		 75:02:18
(32.80%)		 02:23:43
(1.05%)		 19:43:37
(N/A)
Remaining 1793:42:32
(94.54%)		 943:56:18
(100.00%)		 849:46:13
(89.13%)		 264:32:45
(99.10%)		 205:02:40
(89.61%)		 153:46:05
(67.20%)		 226:24:41
(98.95%)		 00:00:00
(N/A)











Camera status (2025/01/23)