PRIME Observation Log 2025/10/14

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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: 2025/10/14
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 115.99987 +- 0.00178 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:10:48
Morning 05:33:57
Science Observation
(Sun altitude < -10°)
Start 19:32:54
End 05:11:52
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:32:54
End 22:34:47


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 05:46:42 09:38:58 0.599
GB Time 01:59:26 03:01:53 0.657
Non-GB Time 03:47:15 06:37:05 0.572


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 260 00:12:23 00:28:35 0.433
GB 988 00:47:05 01:59:26 0.394
NASA 2366 01:52:46 03:47:15 0.496


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 260 00:12:23 00:28:35 0.433
Bulge 964 00:45:57 01:56:25 0.395
SKY 24 00:01:08 00:03:01 0.377
ToO 2366 01:52:46 03:47:15 0.496


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OY 260 00:12:23 00:28:35 0.433
GB76_test OH 4 00:00:11 00:01:02 0.184
GCsky 24 00:01:08 00:03:01 0.377
GB76_dither OH 96 00:04:34 00:11:39 0.392
GB77_dither OH 96 00:04:34 00:11:25 0.400
GB78_dither OH 96 00:04:34 00:11:34 0.396
GB94_dither OH 96 00:04:34 00:11:34 0.396
GB111_dither OH 96 00:04:34 00:11:28 0.399
GB110_dither OH 96 00:04:34 00:11:31 0.397
GB109_dither OH 48 00:02:17 00:05:44 0.399
GB108_dither OH 24 00:01:08 00:02:53 0.396
GB91_dither OH 24 00:01:08 00:02:53 0.396
GB74_dither OH 24 00:01:08 00:02:56 0.389
GB92_dither OH 24 00:01:08 00:02:50 0.402
GB93_dither OH 24 00:01:08 00:02:50 0.402
GB75_dither OH 48 00:02:17 00:05:41 0.402
GB112_dither OH 48 00:02:17 00:05:44 0.399
GB79_dither OH 24 00:01:08 00:02:53 0.396
GB60_dither OH 24 00:01:08 00:02:53 0.396
GB95_dither OH 24 00:01:08 00:02:50 0.402
GB113_dither OH 24 00:01:08 00:02:53 0.396
GB114_dither OH 24 00:01:08 00:03:03 0.374
no_grid_test 82 00:03:54 00:15:06 0.259
no_grid 1560 01:14:21 02:26:49 0.506
field17732_test 4 00:00:11 00:00:59 0.193
field17732 720 00:34:19 01:04:20 0.533










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 66:18:42 138:16:35 0.480

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 1976:47:55 1041:59:23 934:48:31 261:44:47 224:21:14 224:21:14 224:21:14 206:44:53
Observed 1643:34:30
(83.14%)		 1014:25:23
(97.35%)		 629:09:06
(67.30%)		 148:40:42
(56.80%)		 139:33:29
(62.20%)		 236:42:36
(105.51%)		 104:12:18
(46.45%)		 206:44:53
(N/A)
Remaining 333:13:24
(16.86%)		 27:33:59
(2.65%)		 305:39:25
(32.70%)		 113:04:05
(43.20%)		 84:47:45
(37.80%)		 -13:38:39
(0.00%)		 120:08:56
(53.55%)		 00:00:00
(N/A)











Camera status (2025/10/14)



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