PRIME Observation Log 2024/01/25

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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: 2024/01/25
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 0.00000 +- 0.00000 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:07:56
Morning 05:30:26
Science Observation
(Sun altitude < -10°)
Start 20:32:08
End 05:06:14
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 04:18:29
End 05:06:14


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 02:19:20 08:34:05 0.271
GB Time 00:00:00 00:47:44 0.000
Non-GB Time 02:19:20 07:46:20 0.299


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 2280 01:48:40 02:19:20 0.780


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Reduction 80 00:03:48 00:10:04 0.379
Superbias 800 00:38:08 00:52:51 0.721
Dark 1400 01:06:44 01:16:25 0.873


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
DY 2280 01:48:40 02:19:20 0.780










Stats so far in 2024
Monthly observed fraction so far in 2024
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 133:42:32 207:08:10 0.646

Observed time so far in 2024
- Total time of each institute is calculated by the following
    [All observation time in 2024] = [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 2024] = [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 2024] = [All observation time in 2024] - [GB observation time in 2024]
    
    [OU, NASA, ABC time in 2024] = 0.24 x [Non-GB observation time in 2024]
    [SAAO time in 2024] = 0.28 x [Non-GB observation time in 2024]
    
- 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 1923:05:22 943:28:29 979:36:52 274:17:31 235:06:27 235:06:27 235:06:27 18:28:59
Observed 133:42:32
(6.95%)		 00:00:00
(0.00%)		 133:42:32
(13.65%)		 03:37:34
(1.32%)		 121:46:47
(51.80%)		 08:18:11
(3.53%)		 00:00:00
(0.00%)		 18:28:59
(N/A)
Remaining 1789:22:49
(93.05%)		 943:28:29
(100.00%)		 845:54:19
(86.35%)		 270:39:56
(98.68%)		 113:19:39
(48.20%)		 226:48:15
(96.47%)		 235:06:27
(100.00%)		 00:00:00
(N/A)











Camera status (2024/01/25)