PRIME Observation Log 2023/08/28

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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: 2023/08/28
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 18:39:43
Morning 06:35:42
Science Observation
(Sun altitude < -10°)
Start 19:01:11
End 06:14:16
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:01:11
End 01:41:29


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:44:23 11:13:05 0.690
GB Time 03:31:35 06:40:18 0.529
Non-GB Time 04:12:47 04:32:47 0.927


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 1736 01:22:44 04:12:47 0.327
GB 2400 01:54:24 03:31:35 0.541


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat 156 00:07:26 00:40:35 0.183
focus 204 00:09:43 01:31:22 0.106
GRB 1280 01:01:00 01:50:34 0.552
SKY 96 00:04:34 00:10:15 0.446
Bulge 2400 01:54:24 03:31:35 0.541


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OH 156 00:07:26 00:40:35 0.183
focus 204 00:09:43 01:31:22 0.106
GRB230827A 1280 01:01:00 01:50:34 0.552
GCsky 96 00:04:34 00:10:15 0.446
GB57 OH 48 00:02:17 00:04:07 0.555
GB58 OH 96 00:04:34 00:08:17 0.552
GB59 OH 96 00:04:34 00:08:12 0.558
GB60 OH 96 00:04:34 00:08:12 0.558
GB61 OH 96 00:04:34 00:08:12 0.558
GB62 OH 96 00:04:34 00:08:12 0.558
GB63 OH 48 00:02:17 00:04:18 0.531
GB74 OH 48 00:02:17 00:04:10 0.548
GB75 OH 96 00:04:34 00:08:12 0.558
GB76 OH 96 00:04:34 00:08:09 0.561
GB77 OH 96 00:04:34 00:08:12 0.558
GB78 OH 96 00:04:34 00:08:12 0.558
GB79 OH 96 00:04:34 00:09:27 0.484
GB80 OH 48 00:02:17 00:06:10 0.370
GB91 OH 48 00:02:17 00:04:10 0.548
GB92 OH 96 00:04:34 00:08:12 0.558
GB93 OH 96 00:04:34 00:08:09 0.561
GB94 OH 96 00:04:34 00:08:09 0.561
GB95 OH 96 00:04:34 00:08:14 0.555
GB96 OH 96 00:04:34 00:08:28 0.540
GB97 OH 48 00:02:17 00:04:13 0.542
GB108 OH 48 00:02:17 00:04:07 0.555
GB109 OH 48 00:02:17 00:04:10 0.548
GB110 OH 48 00:02:17 00:04:04 0.561
GB111 OH 48 00:02:17 00:04:04 0.561
GB112 OH 48 00:02:17 00:04:07 0.555
GB113 OH 48 00:02:17 00:04:07 0.555
GB114 OH 48 00:02:17 00:05:20 0.429
GB125 OH 48 00:02:17 00:04:04 0.561
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 00:04:04 0.561
GB129 OH 48 00:02:17 00:04:04 0.561
GB130 OH 48 00:02:17 00:04:07 0.555
GB131 OH 48 00:02:17 00:05:14 0.436










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 146:52:20 324:18:45 0.453

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 1265:53:31 351:49:15 914:04:15 255:56:23 219:22:37 219:22:37 219:22:37 15:42:12
Observed 686:41:41
(54.25%)		 209:33:30
(59.56%)		 477:08:10
(52.20%)		 00:00:00
(0.00%)		 466:22:48
(212.59%)		 10:45:22
(4.90%)		 00:00:00
(0.00%)		 15:42:12
(N/A)
Remaining 579:11:49
(45.75%)		 142:15:45
(40.44%)		 436:56:04
(47.80%)		 255:56:23
(100.00%)		 -248:59:49
(0.00%)		 208:37:15
(95.10%)		 219:22:37
(100.00%)		 00:00:00
(N/A)











Camera status (2023/08/28)



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