PRIME Observation Log 2023/04/25

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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: 2023/04/25
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 18:27:12
Morning 06:42:36
Science Observation
(Sun altitude < -10°)
Start 18:48:53
End 06:20:53
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 22:23:39
End 06:20:53


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 04:51:34 11:31:59 0.421
GB Time 00:00:00 07:57:12 0.000
Non-GB Time 04:51:34 03:34:46 1.358


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 1762 01:23:59 04:51:34 0.288


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FilterTest 50 00:02:23 00:12:18 0.194
Flat 284 00:13:32 00:31:03 0.436
anormaly 924 00:44:02 02:31:49 0.290
SKY 108 00:05:08 00:36:40 0.140
Twilght 396 00:18:52 00:59:42 0.316


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OH 4 00:00:11 00:00:58 0.195
OY 4 00:00:11 00:00:53 0.215
OJ 4 00:00:11 00:00:56 0.204
OO 2 00:00:05 00:00:47 0.120
ZO 4 00:00:11 00:00:56 0.204
ZH 4 00:00:11 00:00:58 0.194
ZY 4 00:00:11 00:00:56 0.204
ZJ 4 00:00:11 00:01:12 0.157
NBO 4 00:00:11 00:00:53 0.215
NBH 4 00:00:11 00:00:58 0.194
NBY 4 00:00:11 00:00:56 0.204
NBJ 4 00:00:11 00:01:09 0.164
DO 4 00:00:11 00:00:41 0.276
Twilight 284 00:13:32 00:31:03 0.436
MB23124 924 00:44:02 02:31:49 0.290
GCsky 108 00:05:08 00:36:40 0.140
Flat 396 00:18:52 00:59:42 0.316










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 58:13:20 279:38:16 0.208

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 1514:43:42 789:02:20 725:41:22 203:11:35 174:09:55 174:09:55 174:09:55 14:55:46
Observed 184:00:34
(12.15%)		 47:52:32
(6.07%)		 136:08:02
(18.76%)		 00:00:00
(0.00%)		 134:18:13
(77.11%)		 01:49:48
(1.05%)		 00:00:00
(0.00%)		 14:55:46
(N/A)
Remaining 1330:43:07
(87.85%)		 741:09:47
(93.93%)		 589:33:19
(81.24%)		 203:11:35
(100.00%)		 39:51:42
(22.89%)		 172:20:07
(98.95%)		 174:09:55
(100.00%)		 00:00:00
(N/A)











Camera status (2023/04/25)