PRIME Observation Log 2025/11/17

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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: 2025/11/17
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 117.00040 +- 0.00527 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:41:25
Morning 05:01:57
Science Observation
(Sun altitude < -10°)
Start 20:05:43
End 04:37:39
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:05:43
End 20:21:05


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:06:14 08:31:56 0.833
GB Time 00:00:00 00:15:22 0.000
Non-GB Time 07:06:14 08:16:33 0.858


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
NASA 5504 04:22:21 07:06:14 0.616
CALIB 200 00:09:32 00:21:49 0.437


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
ToO 5504 04:22:21 07:06:14 0.616
TWILIGHT 200 00:09:32 00:21:49 0.437


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field3239_test 4 00:00:11 00:01:18 0.145
field3239 110 00:05:14 00:08:13 0.638
field3036 110 00:05:14 00:08:13 0.638
field2512 110 00:05:14 00:09:29 0.553
field7096 110 00:05:14 00:09:15 0.567
field8732 110 00:05:14 00:08:13 0.638
field7095 110 00:05:14 00:08:46 0.597
field4223 110 00:05:14 00:09:06 0.576
field13523 110 00:05:14 00:09:01 0.581
field4439 110 00:05:14 00:08:52 0.591
field13211 110 00:05:14 00:08:24 0.623
field7362 110 00:05:14 00:08:47 0.597
field4017 110 00:05:14 00:08:16 0.634
field3410 110 00:05:14 00:08:24 0.623
field4441 110 00:05:14 00:08:35 0.610
field9591 110 00:05:14 00:08:30 0.617
field4659 110 00:05:14 00:08:35 0.610
field13522 110 00:05:14 00:08:13 0.638
field16358 66 00:03:08 00:05:38 0.557
field6072 110 00:05:14 00:08:18 0.630
field7097 110 00:05:14 00:08:30 0.617
field4440 220 00:10:29 00:16:09 0.649
field12590 44 00:02:05 00:03:11 0.658
field2849 110 00:05:14 00:07:36 0.688
field6833 110 00:05:14 00:07:36 0.688
field5346 110 00:05:14 00:07:36 0.688
field8452 110 00:05:14 00:07:36 0.688
field4886 110 00:05:14 00:07:36 0.688
field6578 110 00:05:14 00:07:36 0.689
field5115 110 00:05:14 00:07:36 0.688
field4885 110 00:05:14 00:07:36 0.688
field5825 110 00:05:14 00:07:36 0.688
field5114 110 00:05:14 00:07:36 0.688
field6323 110 00:05:14 00:07:36 0.688
field6071 110 00:05:14 00:07:36 0.688
field4661 110 00:05:14 00:12:00 0.437
field3217 110 00:05:14 00:08:07 0.645
field3608 110 00:05:14 00:08:13 0.638
field2671 110 00:05:14 00:08:18 0.630
field5349 110 00:05:14 00:08:16 0.634
field3030 330 00:15:43 00:25:52 0.608
field4228 330 00:15:43 00:29:54 0.526
field13656 110 00:05:14 00:08:07 0.645
field13658 110 00:05:14 00:08:13 0.638
field14600 110 00:05:14 00:08:07 0.645
field13972 110 00:05:14 00:08:10 0.641
field15234 110 00:05:14 00:11:21 0.462
FLAT OH 200 00:09:32 00:21:49 0.437










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 85:07:24 149:08:35 0.571

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 2025:05:56 1045:40:57 979:24:59 274:14:11 235:03:35 235:03:35 235:03:35 220:21:39
Observed 1845:48:11
(91.15%)		 1045:33:03
(99.99%)		 800:15:08
(81.71%)		 186:00:25
(67.83%)		 177:25:35
(75.48%)		 295:17:05
(125.62%)		 141:32:02
(60.21%)		 220:21:39
(N/A)
Remaining 179:17:44
(8.85%)		 00:07:54
(0.01%)		 179:09:50
(18.29%)		 88:13:45
(32.17%)		 57:38:00
(24.52%)		 -61:46:31
(0.00%)		 93:31:33
(39.79%)		 00:00:00
(N/A)











Camera status (2025/11/17)



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