PRIME Observation Log 2023/11/09

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Observation Log (Time is in UT)

Date: 2023/11/09
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 0.00000 +- 0.00000 K
ImageAcquisitionErrors occurred 1 times @
2023-11-10 03:20:11 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:33:09
Morning 05:07:38
Science Observation
(Sun altitude < -10°)
Start 19:56:50
End 04:43:57
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:56:50
End 20:54:27


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 01:11:49 08:47:07 0.136
GB Time 00:40:58 00:57:36 0.711
Non-GB Time 00:30:50 07:49:30 0.066


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB 128 00:06:06 00:40:58 0.149
OU 56 00:02:40 00:30:50 0.087
CALIB 396 00:18:52 00:38:36 0.489


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 128 00:06:06 00:40:58 0.149
tel_analysis 56 00:02:40 00:30:50 0.087
TWILIGHT 396 00:18:52 00:38:36 0.489


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB74_test OH 4 00:00:11 00:03:13 0.059
GB91_test OH 12 00:00:34 00:13:02 0.044
GB126_test OH 12 00:00:34 00:07:57 0.072
GB126 OH 48 00:02:17 00:11:02 0.207
GB143_test OH 4 00:00:11 00:01:21 0.140
GB143 OH 48 00:02:17 00:04:20 0.527
8 28 00:01:20 00:23:17 0.057
13 4 00:00:11 00:00:41 0.276
4 24 00:01:08 00:06:51 0.167
FLAT OH 396 00:18:52 00:38:36 0.489










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 166:19:41 357:47:22 0.465
Sep 168:01:16 319:07:11 0.527
Oct 54:09:44 297:33:05 0.182
Nov 08:54:08 80:13:36 0.111

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 1151:14:48 284:53:44 866:21:03 242:34:41 207:55:27 207:55:27 207:55:27 21:31:30
Observed 937:14:13
(81.41%)		 282:21:01
(99.11%)		 654:53:11
(75.59%)		 00:00:00
(0.00%)		 644:07:49
(309.79%)		 10:45:22
(5.17%)		 00:00:00
(0.00%)		 21:31:30
(N/A)
Remaining 214:00:34
(18.59%)		 02:32:42
(0.89%)		 211:27:52
(24.41%)		 242:34:41
(100.00%)		 -437:47:39
(0.00%)		 197:10:04
(94.83%)		 207:55:27
(100.00%)		 00:00:00
(N/A)











Camera status (2023/11/09)