PRIME Observation Log 2023/02/25

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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: 2023/02/25
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 19:39:29
Morning 06:00:25
Science Observation
(Sun altitude < -10°)
Start 20:01:37
End 05:38:16
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 02:15:36
End 05:38:16


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 04:19:38 09:36:38 0.450
GB Time 00:42:36 03:22:39 0.210
Non-GB Time 03:37:02 06:13:59 0.580


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 84 00:04:00 00:19:36 0.204
OU 830 00:39:33 03:37:02 0.182
GB 52 00:02:28 00:42:36 0.058


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilight 84 00:04:00 00:19:36 0.204
StandardStar 272 00:12:57 01:24:33 0.153
FilterTest 78 00:03:43 01:21:44 0.045
bulge 52 00:02:28 00:42:36 0.058
superbias 480 00:22:52 00:50:44 0.451


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat OJ 84 00:04:00 00:19:36 0.204
LP944-20 272 00:12:57 01:24:33 0.153
OH 4 00:00:11 00:01:01 0.186
OY 4 00:00:11 00:00:58 0.194
OJ 4 00:00:11 00:00:58 0.194
OO 2 00:00:05 00:04:16 0.022
ZO 4 00:00:11 00:00:58 0.194
ZH 4 00:00:11 00:01:01 0.186
ZY 4 00:00:11 00:00:58 0.194
ZJ 4 00:00:11 00:02:36 0.073
NBJ 4 00:00:11 00:00:58 0.195
NBO 4 00:00:11 00:00:58 0.194
NBH 4 00:00:11 00:04:08 0.046
NBY 4 00:00:11 00:01:48 0.105
DY 32 00:01:31 01:00:58 0.025
test OH 52 00:02:28 00:42:36 0.058
dark 480 00:22:52 00:50:44 0.451










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 33:15:18 229:47:28 0.145

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 1696:19:06 914:49:50 781:29:16 218:48:59 187:33:25 187:33:25 187:33:25 01:22:45
Observed 51:58:21
(3.06%)		 04:44:46
(0.52%)		 47:13:34
(6.04%)		 00:00:00
(0.00%)		 45:27:58
(24.24%)		 01:45:35
(0.94%)		 00:00:00
(0.00%)		 01:22:45
(N/A)
Remaining 1644:20:45
(96.94%)		 910:05:03
(99.48%)		 734:15:42
(93.96%)		 218:48:59
(100.00%)		 142:05:26
(75.76%)		 185:47:50
(99.06%)		 187:33:25
(100.00%)		 00:00:00
(N/A)











Camera status (2023/02/25)