PRIME Observation Log 2025/11/16

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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: 2025/11/16
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 117.00000 +- 0.00071 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:40:27
Morning 05:02:31
Science Observation
(Sun altitude < -10°)
Start 20:04:40
End 04:38:18
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:04:40
End 20:25:01


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 08:38:12 08:33:37 1.009
GB Time 00:00:00 00:20:20 0.000
Non-GB Time 08:38:12 08:13:16 1.051


Institute Statistics
- ALLSKY time is equally distributed to each institute
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 444 00:21:09 00:52:17 0.405
SAAO 1071 00:51:03 02:09:33 0.394
OU 1071 00:51:03 02:09:33 0.394
NASA 1071 00:51:03 02:09:33 0.394
ABC 1071 00:51:03 02:09:33 0.394


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 444 00:21:09 00:52:17 0.405
all_sky_grid 4284 03:24:12 08:38:12 0.394


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OH 444 00:21:09 00:52:17 0.405
field7042_test 4 00:00:11 00:00:50 0.225
field7042 40 00:01:54 00:04:50 0.394
field7307 40 00:01:54 00:05:57 0.320
field13799 40 00:01:54 00:05:12 0.366
field18541 40 00:01:54 00:04:47 0.398
field18542 40 00:01:54 00:04:50 0.394
field18543 40 00:01:54 00:04:50 0.394
field18544 40 00:01:54 00:04:47 0.398
field18545 40 00:01:54 00:04:50 0.394
field18546 40 00:01:54 00:04:47 0.398
field18547 40 00:01:54 00:04:52 0.391
field18548 40 00:01:54 00:04:44 0.402
field18549 40 00:01:54 00:04:44 0.402
field18550 40 00:01:54 00:04:44 0.402
field18551 40 00:01:54 00:04:44 0.402
field18552 40 00:01:54 00:04:44 0.402
field18553 40 00:01:54 00:04:44 0.402
field18554 40 00:01:54 00:04:44 0.402
field18555 40 00:01:54 00:04:44 0.402
field18556 40 00:01:54 00:04:44 0.402
field18557 40 00:01:54 00:04:44 0.402
field18558 40 00:01:54 00:04:44 0.402
field18559 40 00:01:54 00:04:44 0.402
field18560 40 00:01:54 00:04:47 0.398
field17937 40 00:01:54 00:04:44 0.402
field17938 40 00:01:54 00:04:44 0.402
field17939 40 00:01:54 00:04:44 0.402
field17940 40 00:01:54 00:04:44 0.402
field17941 40 00:01:54 00:04:44 0.402
field17942 40 00:01:54 00:04:44 0.402
field17943 40 00:01:54 00:04:44 0.402
field17944 40 00:01:54 00:04:44 0.402
field17945 40 00:01:54 00:04:44 0.402
field17946 40 00:01:54 00:04:44 0.402
field17947 40 00:01:54 00:04:47 0.398
field17948 40 00:01:54 00:04:44 0.402
field17635 40 00:01:54 00:04:44 0.402
field17636 40 00:01:54 00:04:44 0.402
field17637 40 00:01:54 00:04:47 0.398
field17951 40 00:01:54 00:04:50 0.394
field17952 40 00:01:54 00:04:47 0.398
field17953 40 00:01:54 00:04:47 0.398
field17954 40 00:01:54 00:04:47 0.398
field17955 40 00:01:54 00:04:47 0.398
field17956 40 00:01:54 00:04:47 0.398
field17644 40 00:01:54 00:04:50 0.394
field17645 40 00:01:54 00:04:50 0.394
field18584 40 00:01:54 00:04:44 0.402
field18585 40 00:01:54 00:04:44 0.402
field18586 40 00:01:54 00:04:44 0.402
field18587 40 00:01:54 00:04:44 0.402
field18588 40 00:01:54 00:04:44 0.402
field18589 40 00:01:54 00:04:44 0.402
field18590 40 00:01:54 00:04:44 0.402
field18591 40 00:01:54 00:04:44 0.402
field18592 40 00:01:54 00:04:44 0.402
field18593 40 00:01:54 00:04:44 0.402
field18594 40 00:01:54 00:04:44 0.402
field18595 40 00:01:54 00:04:44 0.402
field18596 40 00:01:54 00:04:44 0.402
field18597 40 00:01:54 00:04:44 0.402
field18598 40 00:01:54 00:04:44 0.402
field18599 40 00:01:54 00:04:47 0.398
field17663 40 00:01:54 00:04:47 0.398
field17664 40 00:01:54 00:04:44 0.402
field17665 40 00:01:54 00:04:47 0.398
field17666 40 00:01:54 00:04:44 0.402
field17667 40 00:01:54 00:04:44 0.402
field17668 40 00:01:54 00:04:50 0.394
field17669 40 00:01:54 00:04:47 0.398
field17670 40 00:01:54 00:04:47 0.398
field17671 40 00:01:54 00:04:50 0.394
field17672 40 00:01:54 00:04:47 0.398
field17673 40 00:01:54 00:04:52 0.391
field17674 40 00:01:54 00:04:47 0.398
field17675 40 00:01:54 00:04:47 0.398
field17676 40 00:01:54 00:04:47 0.398
field17677 40 00:01:54 00:04:50 0.394
field17678 40 00:01:54 00:04:50 0.394
field17679 40 00:01:54 00:04:50 0.394
field17680 40 00:01:54 00:04:47 0.398
field17681 40 00:01:54 00:04:52 0.391
field17682 40 00:01:54 00:04:47 0.398
field17683 40 00:01:54 00:04:47 0.398
field17684 40 00:01:54 00:04:47 0.398
field17685 40 00:01:54 00:04:50 0.394
field17686 40 00:01:54 00:04:44 0.402
field17687 40 00:01:54 00:04:44 0.402
field17688 40 00:01:54 00:04:44 0.402
field18002 40 00:01:54 00:04:47 0.398
field18314 40 00:01:54 00:04:50 0.394
field18001 40 00:01:54 00:04:47 0.398
field17373 40 00:01:54 00:04:44 0.402
field17372 40 00:01:54 00:04:47 0.398
field17371 40 00:01:54 00:04:47 0.398
field17056 40 00:01:54 00:06:17 0.303
field18065 40 00:01:54 00:04:47 0.398
field18066 40 00:01:54 00:04:47 0.398
field18067 40 00:01:54 00:04:44 0.402
field18068 40 00:01:54 00:04:44 0.402
field18069 40 00:01:54 00:04:47 0.398
field18070 40 00:01:54 00:04:50 0.394
field18071 40 00:01:54 00:04:50 0.394
field18072 40 00:01:54 00:04:47 0.398
field18073 40 00:01:54 00:04:47 0.398
field18074 40 00:01:54 00:04:47 0.398
field18075 40 00:01:54 00:04:50 0.394
field18076 40 00:01:54 00:07:52 0.242










Stats so far in 2025
Monthly observed fraction so far in 2025
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 103:35:29 259:42:08 0.399
Feb 53:54:42 259:20:18 0.208
Mar 158:57:47 319:07:20 0.498
Apr 161:02:39 338:08:53 0.476
May 244:24:55 372:31:50 0.656
Jun 209:59:39 370:50:11 0.566
Jul 224:49:02 377:25:14 0.596
Aug 230:19:15 357:22:01 0.644
Sep 190:24:38 318:36:32 0.598
Oct 183:24:57 296:59:20 0.618
Nov 78:01:10 140:36:39 0.555

Observed time so far in 2025
- Total time of each institute is calculated by the following
    [All observation time in 2025] = [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 2025] = [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 2025] = [All observation time in 2025] - [GB observation time in 2025]
    
    [OU, NASA, ABC time in 2025] = 0.24 x [Non-GB observation time in 2025]
    [SAAO time in 2025] = 0.28 x [Non-GB observation time in 2025]
    
- 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 2022:15:39 1045:48:38 976:27:01 273:24:21 234:20:53 234:20:53 234:20:53 219:59:50
Observed 1838:41:57
(90.92%)		 1045:33:03
(99.98%)		 793:08:53
(81.23%)		 186:00:25
(68.03%)		 177:25:35
(75.71%)		 288:10:50
(122.97%)		 141:32:01
(60.39%)		 219:59:50
(N/A)
Remaining 183:33:42
(9.08%)		 00:15:35
(0.02%)		 183:18:07
(18.77%)		 87:23:56
(31.97%)		 56:55:17
(24.29%)		 -54:10:03
(0.00%)		 92:48:51
(39.61%)		 00:00:00
(N/A)











Camera status (2025/11/16)



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