PRIME Observation Log 2023/01/21

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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: 2023/01/21
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 1.93980 +- 0.42457 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:09:49
Morning 05:26:37
Science Observation
(Sun altitude < -10°)
Start 20:34:17
End 05:02:08
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 04:33:12
End 05:02:08


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 01:35:51 08:27:50 0.189
GB Time 00:00:00 00:28:56 0.000
Non-GB Time 01:35:51 07:58:54 0.200


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 202 00:09:37 01:35:51 0.100


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT 76 00:03:37 00:39:19 0.092
FilterTest 82 00:03:54 00:47:47 0.082
SKY 24 00:01:08 00:04:10 0.274
test 8 00:00:22 00:02:55 0.130
OpenCluster 12 00:00:34 00:01:37 0.350


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilight 76 00:03:37 00:39:19 0.092
Hyades 56 00:02:40 00:38:01 0.070
galacticplane 8 00:00:22 00:02:55 0.130
M41 12 00:00:34 00:01:37 0.350
OH 4 00:00:11 00:01:04 0.178
OY 4 00:00:11 00:01:01 0.186
OJ 4 00:00:11 00:01:04 0.178
OO 2 00:00:05 00:00:53 0.108
ZO 4 00:00:11 00:01:01 0.186
ZH 4 00:00:11 00:01:07 0.170
ZY 4 00:00:11 00:01:01 0.186
ZJ 4 00:00:11 00:01:23 0.136
NBO 4 00:00:11 00:01:04 0.178
NBH 4 00:00:11 00:01:07 0.170
NBY 4 00:00:11 00:01:04 0.178
NBJ 4 00:00:11 00:01:21 0.141
DO 4 00:00:11 00:00:41 0.276










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 04:28:30 173:07:42 0.026

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 1806:49:10 944:44:32 862:04:38 241:22:53 206:53:54 206:53:54 206:53:54 00:00:00
Observed 04:28:30
(0.25%)		 00:00:00
(0.00%)		 04:28:30
(0.52%)		 00:00:00
(0.00%)		 04:28:30
(2.16%)		 00:00:00
(0.00%)		 00:00:00
(0.00%)		 00:00:00
(N/A)
Remaining 1802:20:40
(99.75%)		 944:44:32
(100.00%)		 857:36:07
(99.48%)		 241:22:53
(100.00%)		 202:25:24
(97.84%)		 206:53:54
(100.00%)		 206:53:54
(100.00%)		 00:00:00
(N/A)











Camera status (2023/01/21)