PRIME Observation Log 2023/04/04

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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: 2023/04/04
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 18:51:10
Morning 06:28:37
Science Observation
(Sun altitude < -10°)
Start 19:12:29
End 06:07:17
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 23:46:13
End 06:07:17


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 00:40:28 10:54:47 0.062
GB Time 00:00:00 06:21:04 0.000
Non-GB Time 00:40:28 04:33:43 0.148


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 260 00:12:23 01:30:55 0.136
OU 400 00:19:04 00:40:28 0.471


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilight 260 00:12:23 01:30:55 0.136
Twilght 400 00:19:04 00:40:28 0.471


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat OH 260 00:12:23 01:30:55 0.136
Flat 400 00:19:04 00:40:28 0.471










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 06:07:31 43:27:41 0.141

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 1580:43:11 849:45:29 730:57:42 204:40:09 175:25:50 175:25:50 175:25:50 13:57:54
Observed 131:54:46
(8.35%)		 33:05:15
(3.89%)		 98:49:31
(13.52%)		 00:00:00
(0.00%)		 97:03:55
(55.33%)		 01:45:35
(1.00%)		 00:00:00
(0.00%)		 13:57:54
(N/A)
Remaining 1448:48:25
(91.65%)		 816:40:14
(96.11%)		 632:08:10
(86.48%)		 204:40:09
(100.00%)		 78:21:54
(44.67%)		 173:40:15
(99.00%)		 175:25:50
(100.00%)		 00:00:00
(N/A)











Camera status (2023/04/04)