PRIME Observation Log 2025/09/29

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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: 2025/09/29
Local observer:
Remote observer: Kansuke,Asahi,Shuma
Weather: clear
Comment:
Detector Temperature: 115.99826 +- 0.02875 K
ImageAcquisitionErrors occurred 5 times @
2025-09-29 19:33:43 SAT
2025-09-30 06:23:46 SAT
2025-09-30 07:01:03 SAT
2025-09-30 07:15:35 SAT
2025-09-30 07:29:54 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:59:55
Morning 05:53:19
Science Observation
(Sun altitude < -10°)
Start 19:21:28
End 05:31:47
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:21:28
End 23:33:46


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 08:51:43 10:10:19 0.871
GB Time 03:59:50 04:12:17 0.951
Non-GB Time 04:51:52 05:58:01 0.815


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 1209 00:57:37 01:25:11 0.677
GB 2184 01:44:06 03:59:50 0.434
SAAO 662 00:31:33 01:12:58 0.432
OU 662 00:31:33 01:12:58 0.432
NASA 662 00:31:33 01:12:58 0.432
ABC 662 00:31:33 01:12:58 0.432


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 240 00:11:26 00:24:34 0.465
Bulge 2136 01:41:48 03:53:05 0.437
SKY 48 00:02:17 00:06:44 0.339
all_sky_grid 2648 02:06:13 04:51:52 0.432
calibration 969 00:46:11 01:00:36 0.762


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT ZO 40 00:01:54 00:05:56 0.321
GB76_test OH 12 00:00:34 00:08:22 0.068
GCsky 48 00:02:17 00:06:44 0.339
GB76_dither OH 216 00:10:17 00:22:28 0.458
GB77_dither OH 216 00:10:17 00:22:49 0.451
GB78_dither OH 208 00:09:54 00:21:47 0.455
GB94_dither OH 216 00:10:17 00:21:57 0.469
GB111_dither OH 216 00:10:17 00:22:52 0.450
GB110_dither OH 216 00:10:17 00:22:25 0.459
GB109_dither OH 116 00:05:31 00:15:36 0.354
GB108_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:24 0.474
GB74_dither OH 24 00:01:08 00:02:47 0.411
GB92_dither OH 48 00:02:17 00:04:46 0.479
GB93_dither OH 72 00:03:25 00:07:25 0.462
GB75_dither OH 96 00:04:34 00:09:58 0.459
GB112_dither OH 96 00:04:34 00:09:33 0.479
GB79_dither OH 96 00:04:34 00:10:29 0.436
GB60_dither OH 48 00:02:17 00:05:06 0.448
GB95_dither OH 48 00:02:17 00:05:06 0.448
GB113_dither OH 48 00:02:17 00:04:52 0.470
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:30 0.456
GB96_dither OH 24 00:01:08 00:02:33 0.448
GB80_dither OH 24 00:01:08 00:02:30 0.456
field6021_test 16 00:00:45 00:03:59 0.191
field6021 40 00:01:54 00:04:18 0.443
field6022 40 00:01:54 00:04:23 0.434
field7047 40 00:01:54 00:04:23 0.434
field7852 40 00:01:54 00:03:55 0.486
field8406 40 00:01:54 00:04:15 0.448
field11028 40 00:01:54 00:04:01 0.474
field11029 40 00:01:54 00:04:09 0.458
field12559 40 00:01:54 00:04:18 0.443
field7881 40 00:01:54 00:04:09 0.458
field7613 40 00:01:54 00:03:47 0.503
field7612 40 00:01:54 00:04:20 0.438
field7611 40 00:01:54 00:04:20 0.438
field7349 40 00:01:54 00:04:01 0.474
field7348 40 00:01:54 00:04:18 0.443
field7347 40 00:01:54 00:04:01 0.474
field7346 40 00:01:54 00:04:23 0.434
field7085 40 00:01:54 00:03:55 0.485
field7086 40 00:01:54 00:04:18 0.443
field7087 40 00:01:54 00:04:06 0.464
field7088 40 00:01:54 00:04:04 0.469
field7089 40 00:01:54 00:03:58 0.480
field7090 40 00:01:54 00:04:18 0.443
field7091 40 00:01:54 00:04:01 0.474
field7092 40 00:01:54 00:04:06 0.464
field7093 20 00:00:57 00:02:37 0.363
field12022_test 12 00:00:34 00:07:46 0.074
field12022 40 00:01:54 00:04:26 0.430
field12023 40 00:01:54 00:04:21 0.438
field12640 40 00:01:54 00:04:37 0.412
field12337 40 00:01:54 00:04:18 0.443
field10824 40 00:01:54 00:04:06 0.463
field10825 40 00:01:54 00:04:37 0.412
field10826 40 00:01:54 00:04:12 0.453
field10827 40 00:01:54 00:04:34 0.416
field10828 40 00:01:54 00:04:09 0.458
field10530 40 00:01:54 00:03:52 0.491
field10531 40 00:01:54 00:03:55 0.485
field10532 40 00:01:54 00:04:20 0.438
field10533 40 00:01:54 00:03:52 0.491
field10534 40 00:01:54 00:04:26 0.429
field10535 40 00:01:54 00:04:18 0.443
field10536 40 00:01:54 00:03:55 0.485
field10537 40 00:01:54 00:04:32 0.420
field10538 40 00:01:54 00:03:52 0.491
field10539 40 00:01:54 00:03:55 0.486
field10540 40 00:01:54 00:03:58 0.480
field10244 40 00:01:54 00:03:58 0.480
field9658 40 00:01:54 00:03:52 0.491
field9659 40 00:01:54 00:04:17 0.444
field11438 40 00:01:54 00:04:35 0.416
field12356 40 00:01:54 00:03:55 0.485
field11742 40 00:01:54 00:04:04 0.469
field11437 40 00:01:54 00:04:09 0.458
field12665 40 00:01:54 00:04:26 0.429
field12666 40 00:01:54 00:03:55 0.485
field12667 40 00:01:54 00:05:50 0.326
field4481 40 00:01:54 00:04:23 0.434
field3245 40 00:01:54 00:04:21 0.438
field3246 40 00:01:54 00:04:06 0.463
field3244 40 00:01:54 00:04:06 0.463
field3840 40 00:01:54 00:04:06 0.463
field3243 40 00:01:54 00:04:15 0.448
field4048 40 00:01:54 00:04:06 0.463
field3242 40 00:01:54 00:04:15 0.448
field3436 40 00:01:54 00:04:17 0.444
field3839 40 00:01:54 00:04:04 0.468
field4047 40 00:01:54 00:07:53 0.241
FLAT OH 200 00:09:32 00:18:38 0.511
new_settings 969 00:46:11 01:00:36 0.762










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 180:17:46 308:28:17 0.584

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 1974:34:44 1032:38:35 941:56:08 263:44:31 226:03:52 226:03:52 226:03:52 193:32:45
Observed 1567:08:54
(79.37%)		 978:12:51
(94.73%)		 588:56:02
(62.52%)		 140:17:49
(53.19%)		 131:10:36
(58.03%)		 221:38:10
(98.04%)		 95:49:25
(42.39%)		 193:32:45
(N/A)
Remaining 407:25:50
(20.63%)		 54:25:44
(5.27%)		 353:00:06
(37.48%)		 123:26:41
(46.81%)		 94:53:15
(41.97%)		 04:25:41
(1.96%)		 130:14:26
(57.61%)		 00:00:00
(N/A)











Camera status (2025/09/29)



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