PRIME Observation Log 2024/11/20

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Observation Log (Time is in UT)

Date: 2024/11/20
Local observer: Togo
Remote observer: nane
Weather: cloudy
Comment:
Detector Temperature: 119.81503 +- 0.26129 K
ImageAcquisitionErrors occurred 1 times @
2024-11-21 03:55:26 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:44:33
Morning 05:00:19
Science Observation
(Sun altitude < -10°)
Start 20:09:04
End 04:35:47
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start --:--:--
End --:--:--


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 03:59:10 08:26:42 0.472
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 03:59:10 08:26:42 0.472


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 1871 01:29:11 03:59:10 0.373
CALIB 464 00:22:07 00:59:55 0.369


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 1871 01:29:11 03:59:10 0.373
calibration 8 00:00:22 00:08:29 0.045
TWILIGHT 456 00:21:44 00:51:25 0.423


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field10225 1560 01:14:21 03:08:19 0.395
test 8 00:00:22 00:08:29 0.045
field9931_test 16 00:00:45 00:18:20 0.042
field9931 60 00:02:51 00:07:49 0.365
field10520 60 00:02:51 00:05:07 0.559
field10819 60 00:02:51 00:05:46 0.496
field10821 55 00:02:37 00:05:46 0.454
field9637 60 00:02:51 00:08:00 0.357
FLAT OY 456 00:21:44 00:51:25 0.423










Stats so far in 2024
Monthly observed fraction so far in 2024
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 133:42:32 259:10:04 0.516
Feb 136:23:26 268:21:08 0.508
Mar 134:08:27 319:22:49 0.420
Apr 198:09:29 338:21:39 0.586
May 236:01:56 372:40:23 0.633
Jun 55:37:22 370:51:24 0.150
Jul 130:29:33 377:18:50 0.346
Aug 207:54:50 357:10:27 0.582
Sep 183:12:12 318:22:44 0.575
Oct 177:05:22 296:44:08 0.597
Nov 96:21:35 174:25:55 0.552

Observed time so far in 2024
- Total time of each institute is calculated by the following
    [All observation time in 2024] = [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 2024] = [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 2024] = [All observation time in 2024] - [GB observation time in 2024]
    
    [OU, NASA, ABC time in 2024] = 0.24 x [Non-GB observation time in 2024]
    [SAAO time in 2024] = 0.28 x [Non-GB observation time in 2024]
    
- 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 1855:20:06 776:03:21 1079:16:44 302:11:53 259:01:37 259:01:37 259:01:37 209:40:38
Observed 1688:48:00
(91.02%)		 776:03:21
(100.00%)		 912:44:38
(84.57%)		 59:23:42
(19.65%)		 566:35:44
(218.74%)		 233:25:38
(90.12%)		 53:19:32
(20.59%)		 209:40:38
(N/A)
Remaining 166:32:05
(8.98%)		 00:00:00
(0.00%)		 166:32:05
(15.43%)		 242:48:10
(80.35%)		 -308:25:53
(0.00%)		 25:35:58
(9.88%)		 205:42:04
(79.41%)		 00:00:00
(N/A)











Camera status (2024/11/20)