PRIME Observation Log 2025/10/19

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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: 2025/10/19
Local observer: Kansuke
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 116.00010 +- 0.00097 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:14:48
Morning 05:27:58
Science Observation
(Sun altitude < -10°)
Start 19:37:09
End 05:05:37
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:37:09
End 22:15:07


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 05:39:23 09:28:27 0.597
GB Time 02:25:33 02:37:57 0.921
Non-GB Time 03:13:49 06:50:30 0.472


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 152 00:07:14 00:18:18 0.396
GB 1188 00:56:37 02:25:33 0.389
SAAO 401 00:19:06 00:48:27 0.394
OU 401 00:19:06 00:48:27 0.394
NASA 401 00:19:06 00:48:27 0.394
ABC 401 00:19:06 00:48:27 0.394


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 152 00:07:14 00:18:18 0.396
Bulge 1164 00:55:29 02:22:23 0.390
SKY 24 00:01:08 00:03:10 0.361
all_sky_grid 1604 01:16:27 03:13:49 0.394


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OY 152 00:07:14 00:18:18 0.396
GB80_test OJ 8 00:00:22 00:02:34 0.148
GCsky 24 00:01:08 00:03:10 0.361
GB80_dither OJ 48 00:02:17 00:05:44 0.399
GB97_dither OJ 48 00:02:17 00:05:44 0.399
GB114_dither OJ 48 00:02:17 00:05:41 0.402
GB113_dither OJ 48 00:02:17 00:05:44 0.399
GB96_dither OJ 48 00:02:17 00:05:44 0.399
GB79_dither OJ 48 00:02:17 00:05:41 0.402
GB78_dither OJ 48 00:02:17 00:05:44 0.399
GB95_dither OJ 48 00:02:17 00:05:44 0.399
GB112_dither OJ 48 00:02:17 00:05:41 0.402
GB111_dither OJ 48 00:02:17 00:05:44 0.399
GB94_dither OJ 48 00:02:17 00:05:44 0.399
GB77_dither OJ 48 00:02:17 00:05:44 0.399
GB60_dither OJ 48 00:02:17 00:05:44 0.399
GB76_dither OJ 48 00:02:17 00:05:44 0.399
GB93_dither OJ 48 00:02:17 00:05:44 0.399
GB110_dither OJ 48 00:02:17 00:05:47 0.396
GB109_dither OJ 48 00:02:17 00:05:44 0.399
GB92_dither OJ 48 00:02:17 00:05:44 0.399
GB75_dither OJ 48 00:02:17 00:05:44 0.399
GB74_dither OJ 48 00:02:17 00:05:44 0.399
GB91_dither OJ 48 00:02:17 00:05:44 0.399
GB108_dither OJ 48 00:02:17 00:06:20 0.361
GB94_dither OH 24 00:01:08 00:02:50 0.402
GB111_dither OH 24 00:01:08 00:02:50 0.402
GB110_dither OH 24 00:01:08 00:02:50 0.402
GB109_dither OH 24 00:01:08 00:02:53 0.396
GB112_dither OH 4 00:00:11 00:01:38 0.116
field7576_test 4 00:00:11 00:00:59 0.193
field7576 40 00:01:54 00:04:55 0.387
field9834 40 00:01:54 00:04:52 0.391
field10426 40 00:01:54 00:04:55 0.387
field12554 40 00:01:54 00:04:52 0.391
field13491 40 00:01:54 00:04:44 0.402
field13492 40 00:01:54 00:05:04 0.376
field7876 40 00:01:54 00:04:52 0.391
field7336 40 00:01:54 00:04:47 0.398
field7071 40 00:01:54 00:04:47 0.398
field6810 40 00:01:54 00:04:50 0.394
field6049 40 00:01:54 00:04:50 0.394
field5803 40 00:01:54 00:04:52 0.391
field4634 40 00:01:54 00:04:44 0.402
field4635 40 00:01:54 00:04:44 0.402
field4636 40 00:01:54 00:04:47 0.398
field4637 40 00:01:54 00:04:47 0.398
field4638 40 00:01:54 00:04:50 0.394
field4417 40 00:01:54 00:04:47 0.398
field4418 40 00:01:54 00:04:47 0.398
field4419 40 00:01:54 00:04:47 0.398
field4420 40 00:01:54 00:04:44 0.402
field4421 40 00:01:54 00:04:50 0.394
field3993 40 00:01:54 00:04:47 0.398
field3994 40 00:01:54 00:04:50 0.394
field4649 40 00:01:54 00:04:50 0.394
field3995 40 00:01:54 00:04:50 0.394
field3996 40 00:01:54 00:04:50 0.394
field4430 40 00:01:54 00:04:47 0.398
field3997 40 00:01:54 00:04:50 0.394
field3998 40 00:01:54 00:04:44 0.402
field3999 40 00:01:54 00:04:44 0.402
field4000 40 00:01:54 00:04:50 0.394
field4434 40 00:01:54 00:04:50 0.394
field3794 40 00:01:54 00:04:44 0.402
field3795 40 00:01:54 00:04:47 0.398
field3796 40 00:01:54 00:04:47 0.398
field3797 40 00:01:54 00:04:47 0.398
field3798 40 00:01:54 00:04:47 0.398
field3799 40 00:01:54 00:04:47 0.398
field3800 40 00:01:54 00:04:57 0.385










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 100:56:02 185:59:54 0.543

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 1987:33:36 1045:33:33 942:00:03 263:45:36 226:04:48 226:04:48 226:04:48 209:12:48
Observed 1678:11:51
(84.44%)		 1024:58:25
(98.03%)		 653:13:25
(69.34%)		 154:40:12
(58.64%)		 145:32:59
(64.38%)		 242:48:24
(107.40%)		 110:11:48
(48.74%)		 209:12:48
(N/A)
Remaining 309:21:45
(15.56%)		 20:35:07
(1.97%)		 288:46:37
(30.66%)		 109:05:24
(41.36%)		 80:31:48
(35.62%)		 -17:16:25
(0.00%)		 115:53:00
(51.26%)		 00:00:00
(N/A)











Camera status (2025/10/19)



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