PRIME Observation Log 2023/10/03

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Observation Log (Time is in UT)

Date: 2023/10/03
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 0.00000 +- 0.00000 K
ImageAcquisitionErrors occurred 1 times @
2023-10-03 19:37:06 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:02:17
Morning 05:48:41
Science Observation
(Sun altitude < -10°)
Start 19:23:55
End 05:27:03
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:23:55
End 23:19:56


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 01:46:06 10:03:07 0.176
GB Time 01:07:24 03:56:00 0.286
Non-GB Time 00:38:42 06:07:06 0.105


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 8 00:00:22 00:06:46 0.056
OU 110 00:05:14 00:38:42 0.135
GB 668 00:31:50 01:07:24 0.472


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 8 00:00:22 00:06:46 0.056
SKY 72 00:03:25 00:33:46 0.102
Bulge 668 00:31:50 01:07:24 0.472
Reduction 38 00:01:48 00:04:55 0.368


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT DY 8 00:00:22 00:06:46 0.056
TEST 40 00:01:54 00:30:08 0.063
GCsky 32 00:01:31 00:03:38 0.419
GB125 OH 48 00:02:17 00:04:18 0.531
GB126 OH 48 00:02:17 00:04:07 0.555
GB127 OH 48 00:02:17 00:04:04 0.561
GB128 OH 48 00:02:17 00:07:09 0.319
GB129 OH 44 00:02:05 00:04:27 0.471
GB130 OH 48 00:02:17 00:04:10 0.549
GB131 OH 48 00:02:17 00:07:20 0.311
GB108 OH 48 00:02:17 00:04:15 0.536
GB109 OH 48 00:02:17 00:04:15 0.536
GB110 OH 48 00:02:17 00:04:10 0.548
GB111 OH 48 00:02:17 00:06:08 0.373
GB112 OH 48 00:02:17 00:04:18 0.531
GB113 OH 48 00:02:17 00:04:01 0.568
GB114 OH 48 00:02:17 00:04:34 0.500
DY 38 00:01:48 00:04:55 0.368










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 09:34:26 30:15:36 0.316

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 1271:30:54 315:09:32 956:21:22 267:46:47 229:31:31 229:31:31 229:31:31 17:37:37
Observed 883:44:47
(69.50%)		 267:47:24
(84.97%)		 615:57:23
(64.41%)		 00:00:00
(0.00%)		 605:12:00
(263.67%)		 10:45:22
(4.69%)		 00:00:00
(0.00%)		 17:37:37
(N/A)
Remaining 387:46:07
(30.50%)		 47:22:08
(15.03%)		 340:23:59
(35.59%)		 267:46:47
(100.00%)		 -376:19:31
(0.00%)		 218:46:09
(95.31%)		 229:31:31
(100.00%)		 00:00:00
(N/A)











Camera status (2023/10/03)