PRIME Observation Log 2025/10/06

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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: 2025/10/06
Local observer:
Remote observer: Asahi,Ryunosuke
Weather: clear
Comment:
Detector Temperature: 115.99991 +- 0.00115 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:04:48
Morning 05:44:05
Science Observation
(Sun altitude < -10°)
Start 19:26:34
End 05:22:20
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:26:34
End 23:06:14


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:24:18 09:55:46 0.645
GB Time 02:25:10 03:39:39 0.661
Non-GB Time 03:59:08 06:16:06 0.636


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 276 00:13:09 00:32:23 0.406
GB 1276 01:00:49 02:25:10 0.419
NASA 1150 00:54:49 02:00:12 0.456
SAAO 374 00:17:49 00:39:38 0.450
OU 374 00:17:49 00:39:38 0.450
ABC 374 00:17:49 00:39:38 0.450


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 276 00:13:09 00:32:23 0.406
Bulge 1252 00:59:40 02:22:45 0.418
SKY 24 00:01:08 00:02:24 0.474
all_sky_grid 1496 01:11:18 02:38:34 0.450
ToO 776 00:36:59 01:20:34 0.459


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OY 8 00:00:22 00:06:10 0.062
FLAT OY 268 00:12:46 00:26:13 0.487
GB76_test OH 16 00:00:45 00:04:21 0.175
GB76_dither OH 120 00:05:43 00:12:35 0.454
GB77_dither OH 120 00:05:43 00:11:52 0.482
GB78_dither OH 120 00:05:43 00:12:25 0.460
GB94_dither OH 120 00:05:43 00:12:40 0.452
GB111_dither OH 120 00:05:43 00:12:39 0.452
GB110_dither OH 120 00:05:43 00:12:29 0.458
GB109_dither OH 68 00:03:14 00:18:01 0.180
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB74_dither OH 24 00:01:08 00:02:33 0.448
GB92_dither OH 24 00:01:08 00:02:16 0.503
GB93_dither OH 24 00:01:08 00:02:19 0.493
GB75_dither OH 64 00:03:03 00:06:34 0.464
GB112_dither OH 48 00:02:17 00:04:52 0.470
GB79_dither OH 48 00:02:17 00:05:11 0.440
GB60_dither OH 24 00:01:08 00:02:27 0.465
GB95_dither OH 24 00:01:08 00:02:33 0.448
GB113_dither OH 24 00:01:08 00:02:38 0.432
GB114_dither OH 24 00:01:08 00:02:16 0.503
GB97_dither OH 24 00:01:08 00:02:30 0.456
GB96_dither OH 24 00:01:08 00:02:30 0.456
GB80_dither OH 24 00:01:08 00:02:16 0.503
GCsky 24 00:01:08 00:02:24 0.474
field12944_test 8 00:00:22 00:04:21 0.088
field12944 40 00:01:54 00:03:55 0.485
field12945 40 00:01:54 00:03:50 0.497
field12326 40 00:01:54 00:03:52 0.491
field10807 40 00:01:54 00:03:50 0.497
field10808 40 00:01:54 00:03:52 0.491
field10809 40 00:01:54 00:04:26 0.429
field9642 40 00:01:54 00:03:52 0.491
field9643 40 00:01:54 00:03:50 0.497
field9644 40 00:01:54 00:03:52 0.491
field8498 40 00:01:54 00:03:50 0.497
field8499 40 00:01:54 00:03:50 0.497
field8500 40 00:01:54 00:03:50 0.497
field8501 40 00:01:54 00:03:50 0.497
field8502 40 00:01:54 00:03:52 0.491
field8503 40 00:01:54 00:03:58 0.480
field8788 40 00:01:54 00:03:52 0.491
field8789 40 00:01:54 00:03:47 0.503
field8790 40 00:01:54 00:03:50 0.497
field8791 40 00:01:54 00:03:50 0.497
field8508 40 00:01:54 00:03:47 0.503
field8509 40 00:01:54 00:04:37 0.412
field20484_test 56 00:02:40 00:22:04 0.121
field20484 720 00:34:19 00:58:29 0.587
field4931_test 8 00:00:22 00:01:52 0.203
field4931 40 00:01:54 00:04:15 0.448
field4704 40 00:01:54 00:04:15 0.448
field4046 40 00:01:54 00:04:12 0.453
field3053 40 00:01:54 00:04:06 0.463
field3838 40 00:01:54 00:04:04 0.469
field3052 40 00:01:54 00:04:15 0.448
field3435 40 00:01:54 00:04:15 0.448
field3054 40 00:01:54 00:04:20 0.438
field3247 40 00:01:54 00:04:32 0.420
field3434 40 00:01:54 00:04:12 0.453
field3837 40 00:01:54 00:03:55 0.485
field3836 40 00:01:54 00:04:01 0.474
field4476 40 00:01:54 00:04:09 0.459
field4477 40 00:01:54 00:04:12 0.453
field4698 40 00:01:54 00:04:14 0.449
field4475 40 00:01:54 00:06:55 0.275










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 32:35:33 60:05:54 0.542

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 1982:10:05 1038:57:39 943:12:26 264:05:52 226:22:11 226:22:11 226:22:11 201:46:18
Observed 1609:51:20
(81.22%)		 998:09:47
(96.07%)		 611:41:32
(64.85%)		 145:15:37
(55.00%)		 136:08:24
(60.14%)		 229:30:16
(101.38%)		 100:47:13
(44.52%)		 201:46:18
(N/A)
Remaining 372:18:45
(18.78%)		 40:47:51
(3.93%)		 331:30:54
(35.15%)		 118:50:15
(45.00%)		 90:13:46
(39.86%)		 -4:51:55
(0.00%)		 125:34:57
(55.48%)		 00:00:00
(N/A)











Camera status (2025/10/06)



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