PRIME Observation Log 2023/04/30

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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: 2023/04/30
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 18:22:23
Morning 06:45:56
Science Observation
(Sun altitude < -10°)
Start 18:44:13
End 06:24:03
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 22:04:00
End 06:24:03


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 03:35:14 11:39:50 0.308
GB Time 01:56:03 08:20:03 0.232
Non-GB Time 01:39:11 03:19:46 0.496


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 844 00:40:13 01:39:11 0.406
GB 640 00:30:30 01:56:03 0.263


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilght 844 00:40:13 01:39:11 0.406
bulge 640 00:30:30 01:56:03 0.263


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat 844 00:40:13 01:39:11 0.406
GB25 OH 84 00:04:00 00:29:51 0.134
GB26 OH 48 00:02:17 00:04:48 0.476
GB27 OH 48 00:02:17 00:05:55 0.386
GB28 OH 100 00:04:46 00:20:49 0.229
GB35 OH 48 00:02:17 00:04:48 0.476
GB34 OH 48 00:02:17 00:04:45 0.481
GB33 OH 48 00:02:17 00:04:48 0.476
GB32 OH 48 00:02:17 00:04:48 0.476
GB31 OH 48 00:02:17 00:04:48 0.476
GB30 OH 48 00:02:17 00:04:48 0.476
GB29 OH 48 00:02:17 00:04:50 0.472
GB29 OJ 24 00:01:08 00:21:00 0.054










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 51:45:11 258:50:12 0.200
Mar 55:18:59 318:34:15 0.174
Apr 77:47:40 337:41:57 0.230

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 1505:16:12 774:37:00 730:39:12 204:34:58 175:21:24 175:21:24 175:21:24 14:55:46
Observed 203:34:54
(13.52%)		 53:54:30
(6.96%)		 149:40:24
(20.48%)		 00:00:00
(0.00%)		 147:50:35
(84.31%)		 01:49:48
(1.04%)		 00:00:00
(0.00%)		 14:55:46
(N/A)
Remaining 1301:41:17
(86.48%)		 720:42:29
(93.04%)		 580:58:48
(79.52%)		 204:34:58
(100.00%)		 27:30:49
(15.69%)		 173:31:35
(98.96%)		 175:21:24
(100.00%)		 00:00:00
(N/A)











Camera status (2023/04/30)