PRIME Observation Log 2023/02/20

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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: 2023/02/20
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 19:45:12
Morning 05:56:01
Science Observation
(Sun altitude < -10°)
Start 20:07:37
End 05:33:36
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 02:35:15
End 05:33:36


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 02:04:41 09:25:58 0.220
GB Time 00:00:00 02:58:20 0.000
Non-GB Time 02:04:41 06:27:38 0.322


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 816 00:38:53 02:04:41 0.312


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FilterTest 50 00:02:23 00:30:43 0.078
GainTest 742 00:35:22 00:59:45 0.592
FlatZ 24 00:01:08 00:34:12 0.033


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
ZY 4 00:00:11 00:00:56 0.204
ZJ 4 00:00:11 00:00:53 0.215
ZO 28 00:01:20 00:35:05 0.038
ZH 4 00:00:11 00:11:36 0.016
OH 4 00:00:11 00:00:58 0.194
OY 4 00:00:11 00:00:53 0.215
OJ 4 00:00:11 00:00:53 0.215
OO 2 00:00:05 00:07:19 0.013
NBO 4 00:00:11 00:00:53 0.215
NBH 4 00:00:11 00:00:58 0.194
NBY 4 00:00:11 00:00:56 0.204
NBJ 4 00:00:11 00:02:50 0.067
DJ 4 00:00:11 00:00:41 0.276
GainNJ 742 00:35:22 00:59:45 0.592










Stats so far in 2023
Monthly observed fraction so far in 2023
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 18:43:03 259:20:03 0.072
Feb 15:59:27 182:05:37 0.088

Observed time so far in 2023
- Total time of each institute is calculated by the following
    [All observation time in 2023] = [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 2023] = [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 2023] = [All observation time in 2023] - [GB observation time in 2023]
    
    [OU, NASA, ABC time in 2023] = 0.24 x [Non-GB observation time in 2023]
    [SAAO time in 2023] = 0.28 x [Non-GB observation time in 2023]
    
- 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 1702:54:11 918:07:25 784:46:45 219:44:17 188:20:49 188:20:49 188:20:49 00:00:00
Observed 34:42:30
(2.04%)		 00:00:00
(0.00%)		 34:42:30
(4.42%)		 00:00:00
(0.00%)		 32:56:54
(17.49%)		 01:45:35
(0.93%)		 00:00:00
(0.00%)		 00:00:00
(N/A)
Remaining 1668:11:41
(97.96%)		 918:07:25
(100.00%)		 750:04:15
(95.58%)		 219:44:17
(100.00%)		 155:23:54
(82.51%)		 186:35:14
(99.07%)		 188:20:49
(100.00%)		 00:00:00
(N/A)











Camera status (2023/02/20)