PRIME Observation Log 2023/08/15

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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: 2023/08/15
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 18:31:53
Morning 06:50:08
Science Observation
(Sun altitude < -10°)
Start 18:53:39
End 06:28:24
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:53:39
End 02:32:36


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 04:09:39 11:34:44 0.359
GB Time 00:59:58 07:38:57 0.131
Non-GB Time 03:09:40 03:55:47 0.804


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 1620 01:17:13 03:09:40 0.407
GB 668 00:31:50 00:59:58 0.531


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GRB 1560 01:14:21 02:45:08 0.450
focus 36 00:01:42 00:21:48 0.079
SKY 24 00:01:08 00:02:44 0.418
Bulge 668 00:31:50 00:59:58 0.531


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
test 124 00:05:54 00:51:01 0.116
GRB 1436 01:08:26 01:54:06 0.600
focus 36 00:01:42 00:21:48 0.079
GCsky 24 00:01:08 00:02:44 0.418
GB57 OH 48 00:02:17 00:04:07 0.555
GB58 OH 48 00:02:17 00:04:18 0.531
GB59 OH 48 00:02:17 00:04:04 0.561
GB60 OH 48 00:02:17 00:04:13 0.542
GB61 OH 48 00:02:17 00:04:07 0.555
GB62 OH 48 00:02:17 00:04:15 0.536
GB63 OH 48 00:02:17 00:05:17 0.432
GB74 OH 48 00:02:17 00:04:04 0.561
GB75 OH 48 00:02:17 00:04:18 0.531
GB76 OH 48 00:02:17 00:04:07 0.555
GB77 OH 44 00:02:05 00:04:18 0.486
GB78 OH 48 00:02:17 00:04:07 0.555
GB79 OH 48 00:02:17 00:04:15 0.536
GB80 OH 48 00:02:17 00:04:20 0.527










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 101:36:43 176:15:58 0.576

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 1294:39:18 379:38:52 915:00:26 256:12:07 219:36:06 219:36:06 219:36:06 15:42:12
Observed 641:26:05
(49.54%)		 191:05:14
(50.33%)		 450:20:50
(49.22%)		 00:00:00
(0.00%)		 439:35:28
(200.18%)		 10:45:22
(4.90%)		 00:00:00
(0.00%)		 15:42:12
(N/A)
Remaining 653:13:13
(50.46%)		 188:33:38
(49.67%)		 464:39:35
(50.78%)		 256:12:07
(100.00%)		 -220:00:38
(0.00%)		 208:50:43
(95.10%)		 219:36:06
(100.00%)		 00:00:00
(N/A)











Camera status (2023/08/15)