PRIME Observation Log 2023/08/27

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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: 2023/08/27
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 18:39:08
Morning 06:36:54
Science Observation
(Sun altitude < -10°)
Start 19:00:37
End 06:15:27
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:00:37
End 01:45:25


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:28:58 11:14:50 0.665
GB Time 03:23:12 06:44:48 0.502
Non-GB Time 04:05:45 04:30:01 0.910


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 1816 01:26:33 04:05:45 0.352
GB 2112 01:40:40 03:23:12 0.495


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat 120 00:05:43 00:29:22 0.195
focus 272 00:12:57 01:30:05 0.144
SKY 144 00:06:51 00:18:49 0.365
Bulge 2112 01:40:40 03:23:12 0.495
GRB 1280 01:01:00 01:47:28 0.568


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OH 120 00:05:43 00:29:22 0.195
focus 272 00:12:57 01:30:05 0.144
GCsky 144 00:06:51 00:18:49 0.365
GB57 OH 48 00:02:17 00:04:01 0.568
GB58 OH 48 00:02:17 00:08:58 0.255
GB59 OH 48 00:02:17 00:04:07 0.555
GB60 OH 48 00:02:17 00:04:07 0.555
GB61 OH 48 00:02:17 00:04:10 0.548
GB62 OH 48 00:02:17 00:04:13 0.542
GB63 OH 48 00:02:17 00:05:53 0.388
GB74 OH 48 00:02:17 00:05:23 0.425
GB77 OH 48 00:02:17 00:07:29 0.306
GB75 OH 48 00:02:17 00:04:15 0.536
GB76 OH 48 00:02:17 00:04:27 0.514
GB78 OH 48 00:02:17 00:04:15 0.536
GB79 OH 48 00:02:17 00:04:24 0.519
GB80 OH 48 00:02:17 00:05:28 0.418
GB91 OH 48 00:02:17 00:04:15 0.536
GB92 OH 48 00:02:17 00:04:10 0.548
GB93 OH 48 00:02:17 00:04:10 0.548
GB94 OH 48 00:02:17 00:04:43 0.484
GB95 OH 48 00:02:17 00:04:07 0.555
GB96 OH 48 00:02:17 00:04:07 0.555
GB97 OH 48 00:02:17 00:05:09 0.444
GB108 OH 48 00:02:17 00:04:10 0.548
GB109 OH 48 00:02:17 00:04:04 0.561
GB110 OH 48 00:02:17 00:04:04 0.561
GB111 OH 48 00:02:17 00:04:07 0.555
GB112 OH 48 00:02:17 00:04:07 0.555
GB113 OH 48 00:02:17 00:04:04 0.561
GB114 OH 48 00:02:17 00:05:20 0.429
GB125 OH 48 00:02:17 00:04:07 0.555
GB126 OH 48 00:02:17 00:04:04 0.561
GB127 OH 48 00:02:17 00:04:07 0.555
GB128 OH 48 00:02:17 00:04:07 0.555
GB129 OH 48 00:02:17 00:04:10 0.548
GB130 OH 48 00:02:17 00:04:04 0.561
GB131 OH 48 00:02:17 00:05:28 0.418
GB124 OH 48 00:02:17 00:04:01 0.568
GB141 OH 48 00:02:17 00:04:07 0.555
GB142 OH 48 00:02:17 00:04:07 0.555
GB143 OH 48 00:02:17 00:04:04 0.561
GB144 OH 48 00:02:17 00:04:01 0.568
GB145 OH 48 00:02:17 00:04:07 0.555
GB146 OH 48 00:02:17 00:04:07 0.555
GB147 OH 48 00:02:17 00:04:04 0.561
GB148 OH 48 00:02:17 00:08:16 0.276
GRB230827A 1280 01:01:00 01:47:28 0.568










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 97:43:38 372:13:44 0.263
Jun 49:38:22 370:47:30 0.134
Jul 188:52:24 377:38:54 0.500
Aug 139:07:56 313:05:40 0.444

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 1263:45:40 351:37:49 912:07:51 255:23:48 218:54:41 218:54:41 218:54:41 15:42:12
Observed 678:57:18
(53.72%)		 206:01:55
(58.59%)		 472:55:23
(51.85%)		 00:00:00
(0.00%)		 462:10:00
(211.12%)		 10:45:22
(4.91%)		 00:00:00
(0.00%)		 15:42:12
(N/A)
Remaining 584:48:22
(46.28%)		 145:35:54
(41.41%)		 439:12:28
(48.15%)		 255:23:48
(100.00%)		 -244:44:41
(0.00%)		 208:09:18
(95.09%)		 218:54:41
(100.00%)		 00:00:00
(N/A)











Camera status (2023/08/27)



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