PRIME Observation Log 2023/04/05

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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: 2023/04/05
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 18:49:56
Morning 06:29:17
Science Observation
(Sun altitude < -10°)
Start 19:11:15
End 06:07:57
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 23:42:17
End 06:07:57


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 04:33:45 10:56:42 0.417
GB Time 01:45:15 06:25:40 0.273
Non-GB Time 02:48:29 04:31:02 0.622


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 672 00:32:01 02:48:29 0.190
GB 584 00:27:50 01:45:15 0.264


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilght 652 00:31:04 02:38:48 0.196
bulge 584 00:27:50 01:45:15 0.264
SKY 20 00:00:57 00:09:40 0.098


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat 292 00:13:55 00:52:01 0.268
BD 360 00:17:09 01:46:47 0.161
GB6 OH 28 00:01:20 00:16:08 0.083
GB6 OJ 136 00:06:28 00:43:07 0.150
GCsky 20 00:00:57 00:09:40 0.098
GB7 OJ 48 00:02:17 00:05:21 0.427
GB4 OJ 48 00:02:17 00:05:52 0.390
GB2 OJ 48 00:02:17 00:06:34 0.348
GB1 OJ 48 00:02:17 00:05:02 0.454
GB8 OJ 72 00:03:25 00:07:20 0.468
GB5 OJ 48 00:02:17 00:04:45 0.481
GB3 OJ 48 00:02:17 00:04:48 0.476
GB9 OJ 48 00:02:17 00:04:48 0.476
GB10 OJ 12 00:00:34 00:01:26 0.396










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 10:41:16 54:24:24 0.196

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 1579:48:35 848:17:55 731:30:40 204:49:23 175:33:45 175:33:45 175:33:45 13:57:54
Observed 136:28:31
(8.64%)		 34:50:30
(4.11%)		 101:38:00
(13.89%)		 00:00:00
(0.00%)		 99:52:25
(56.89%)		 01:45:35
(1.00%)		 00:00:00
(0.00%)		 13:57:54
(N/A)
Remaining 1443:20:04
(91.36%)		 813:27:24
(95.89%)		 629:52:39
(86.11%)		 204:49:23
(100.00%)		 75:41:20
(43.11%)		 173:48:10
(99.00%)		 175:33:45
(100.00%)		 00:00:00
(N/A)











Camera status (2023/04/05)