PRIME Observation Log 2023/04/10

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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: 2023/04/10
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 18:43:49
Morning 06:32:37
Science Observation
(Sun altitude < -10°)
Start 19:05:11
End 06:11:13
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 23:22:37
End 06:11:13


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 01:52:19 11:06:01 0.169
GB Time 01:29:10 06:48:35 0.218
Non-GB Time 00:23:08 04:17:26 0.090


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB 440 00:20:58 01:29:10 0.235
OU 212 00:10:06 00:23:08 0.437


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
bulge 440 00:20:58 01:29:10 0.235
Twilght 212 00:10:06 00:23:08 0.437


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB7 OJ 80 00:03:48 00:19:53 0.192
GB6 OJ 48 00:02:17 00:04:48 0.476
GB5 OJ 48 00:02:17 00:04:48 0.476
GB4 OJ 48 00:02:17 00:04:48 0.476
GB3 OJ 48 00:02:17 00:04:48 0.476
GB2 OJ 48 00:02:17 00:04:48 0.476
GB1 OJ 48 00:02:17 00:16:51 0.136
GB8 OJ 48 00:02:17 00:04:50 0.473
GB8 ZO 24 00:01:08 00:23:33 0.049
Flat 212 00:10:06 00:23:08 0.437










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 22:26:18 109:36:01 0.205

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 1563:57:48 836:12:41 727:45:07 203:46:14 174:39:37 174:39:37 174:39:37 14:55:46
Observed 148:13:33
(9.48%)		 39:23:50
(4.71%)		 108:49:42
(14.95%)		 00:00:00
(0.00%)		 107:04:07
(61.30%)		 01:45:35
(1.01%)		 00:00:00
(0.00%)		 14:55:46
(N/A)
Remaining 1415:44:15
(90.52%)		 796:48:50
(95.29%)		 618:55:24
(85.05%)		 203:46:14
(100.00%)		 67:35:30
(38.70%)		 172:54:02
(98.99%)		 174:39:37
(100.00%)		 00:00:00
(N/A)











Camera status (2023/04/10)