PRIME Observation Log 2023/05/26

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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: 2023/05/26
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 18:05:22
Morning 07:02:34
Science Observation
(Sun altitude < -10°)
Start 18:28:04
End 06:39:50
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:21:47
End 06:39:50


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 02:50:25 12:11:45 0.233
GB Time 00:20:05 10:18:02 0.033
Non-GB Time 02:30:20 01:53:42 1.322


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 1336 01:03:40 02:30:20 0.424
GB 36 00:01:42 00:20:05 0.085


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat 932 00:44:25 01:40:13 0.443
bulge 36 00:01:42 00:20:05 0.085
FilterTest 4 00:00:11 00:12:03 0.016
background 400 00:19:04 00:38:03 0.501


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilight 932 00:44:25 01:40:13 0.443
GB7 OH 16 00:00:45 00:14:38 0.052
GB44 OH 8 00:00:22 00:03:23 0.113
GB1 OH 12 00:00:34 00:02:04 0.276
ZY 4 00:00:11 00:12:03 0.016
NBJ 400 00:19:04 00:38:03 0.501










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
May 96:08:23 311:02:35 0.309

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 1445:53:18 678:19:00 767:34:17 214:55:12 184:13:01 184:13:01 184:13:01 15:42:12
Observed 299:43:18
(20.73%)		 79:15:49
(11.69%)		 220:27:29
(28.72%)		 00:00:00
(0.00%)		 218:37:40
(118.68%)		 01:49:48
(0.99%)		 00:00:00
(0.00%)		 15:42:12
(N/A)
Remaining 1146:09:59
(79.27%)		 599:03:11
(88.31%)		 547:06:48
(71.28%)		 214:55:12
(100.00%)		 -35:35:22
(0.00%)		 182:23:13
(99.01%)		 184:13:01
(100.00%)		 00:00:00
(N/A)











Camera status (2023/05/26)