PRIME Observation Log 2025/09/30

Return to index
Previous day Next day

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: 2025/09/30
Local observer:
Remote observer: Ryo Ogawa,Suzuki, and Shuma
Weather: clear
Comment:
Detector Temperature: 116.00004 +- 0.00115 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:00:36
Morning 05:51:59
Science Observation
(Sun altitude < -10°)
Start 19:22:10
End 05:30:26
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:22:10
End 23:29:50


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 10:06:52 10:08:15 0.998
GB Time 03:42:16 04:07:39 0.897
Non-GB Time 06:24:36 06:00:36 1.067


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 292 00:13:55 00:38:15 0.364
GB 1888 01:29:59 03:42:16 0.405
SAAO 966 00:46:02 01:36:09 0.479
OU 966 00:46:02 01:36:09 0.479
NASA 966 00:46:02 01:36:09 0.479
ABC 966 00:46:02 01:36:09 0.479


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 292 00:13:55 00:38:15 0.364
Bulge 1840 01:27:42 03:36:50 0.404
SKY 48 00:02:17 00:05:25 0.421
all_sky_grid 3864 03:04:11 06:24:36 0.479


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 12 00:00:34 00:09:35 0.060
FLAT OH 280 00:13:20 00:28:39 0.466
GB60_test OY 24 00:01:08 00:09:41 0.118
GB60_dither OY 64 00:03:03 00:15:38 0.195
GB80_dither OY 48 00:02:17 00:04:38 0.493
GB79_dither OY 48 00:02:17 00:05:17 0.433
GB78_dither OY 48 00:02:17 00:05:09 0.444
GB77_dither OY 48 00:02:17 00:05:00 0.456
GB76_dither OY 48 00:02:17 00:05:20 0.429
GB75_dither OY 48 00:02:17 00:05:00 0.456
GB74_dither OY 48 00:02:17 00:05:23 0.425
GB97_dither OY 48 00:02:17 00:05:03 0.452
GB96_dither OY 48 00:02:17 00:05:06 0.448
GB95_dither OY 48 00:02:17 00:04:46 0.479
GB94_dither OY 48 00:02:17 00:04:52 0.470
GB93_dither OY 48 00:02:17 00:04:52 0.470
GB92_dither OY 48 00:02:17 00:04:52 0.470
GB91_dither OY 48 00:02:17 00:05:00 0.456
GB114_dither OY 48 00:02:17 00:04:46 0.479
GB113_dither OY 48 00:02:17 00:04:52 0.470
GB112_dither OY 48 00:02:17 00:04:52 0.470
GB111_dither OY 48 00:02:17 00:04:46 0.479
GB110_dither OY 48 00:02:17 00:04:52 0.470
GB109_dither OY 48 00:02:17 00:05:17 0.432
GB108_dither OY 48 00:02:17 00:05:45 0.397
GCsky 48 00:02:17 00:05:25 0.421
GB76_test OH 12 00:00:34 00:03:36 0.158
GB76_dither OH 72 00:03:25 00:07:59 0.430
GB77_dither OH 72 00:03:25 00:07:03 0.487
GB78_dither OH 72 00:03:25 00:07:39 0.448
GB94_dither OH 72 00:03:25 00:07:11 0.477
GB111_dither OH 72 00:03:25 00:07:36 0.451
GB110_dither OH 72 00:03:25 00:07:31 0.457
GB109_dither OH 72 00:03:25 00:11:43 0.293
GB108_dither OH 24 00:01:08 00:02:30 0.456
GB91_dither OH 24 00:01:08 00:02:33 0.448
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 00:02:35 0.441
GB75_dither OH 36 00:01:42 00:05:50 0.294
GB112_dither OH 24 00:01:08 00:02:33 0.448
GB79_dither OH 24 00:01:08 00:02:19 0.493
GB60_dither OH 24 00:01:08 00:02:19 0.493
field5060_test 24 00:01:08 00:05:01 0.227
field5060 40 00:01:54 00:04:01 0.474
field5774 40 00:01:54 00:04:01 0.474
field6784 40 00:01:54 00:04:17 0.444
field7046 40 00:01:54 00:04:01 0.473
field7851 40 00:01:54 00:05:30 0.346
field9838 40 00:01:54 00:04:23 0.434
field11027 40 00:01:54 00:04:26 0.429
field12557 40 00:01:54 00:03:50 0.497
field12558 40 00:01:54 00:04:01 0.474
field7880 40 00:01:54 00:03:52 0.491
field7345 40 00:01:54 00:03:50 0.497
field7344 40 00:01:54 00:03:55 0.485
field7343 40 00:01:54 00:03:55 0.485
field7342 40 00:01:54 00:03:50 0.497
field7082 40 00:01:54 00:03:52 0.491
field7083 40 00:01:54 00:03:47 0.503
field7084 40 00:01:54 00:03:50 0.497
field7081 40 00:01:54 00:03:55 0.485
field6820 40 00:01:54 00:03:50 0.497
field6821 40 00:01:54 00:03:52 0.491
field6822 40 00:01:54 00:03:52 0.491
field6823 40 00:01:54 00:03:58 0.480
field6824 40 00:01:54 00:03:58 0.480
field6825 40 00:01:54 00:03:52 0.491
field6826 40 00:01:54 00:03:52 0.491
field6827 40 00:01:54 00:03:50 0.497
field6828 40 00:01:54 00:03:50 0.497
field6829 40 00:01:54 00:03:50 0.497
field6830 40 00:01:54 00:03:52 0.491
field6831 40 00:01:54 00:03:52 0.491
field6575 40 00:01:54 00:03:50 0.497
field6576 40 00:01:54 00:03:47 0.503
field6577 40 00:01:54 00:03:50 0.497
field6578 40 00:01:54 00:03:50 0.497
field6579 40 00:01:54 00:03:50 0.497
field6580 40 00:01:54 00:03:50 0.497
field6581 40 00:01:54 00:03:50 0.497
field6582 40 00:01:54 00:03:52 0.491
field6583 40 00:01:54 00:03:50 0.497
field6584 40 00:01:54 00:03:55 0.485
field6844 40 00:01:54 00:03:55 0.485
field6839 40 00:01:54 00:03:55 0.485
field6840 40 00:01:54 00:03:52 0.491
field6841 40 00:01:54 00:03:50 0.497
field6842 40 00:01:54 00:03:50 0.497
field6843 40 00:01:54 00:04:04 0.469
field7107 40 00:01:54 00:03:52 0.491
field7108 40 00:01:54 00:03:47 0.503
field7109 40 00:01:54 00:03:47 0.503
field7110 40 00:01:54 00:03:55 0.485
field7111 40 00:01:54 00:03:52 0.491
field7112 40 00:01:54 00:03:50 0.497
field7113 40 00:01:54 00:03:50 0.497
field7114 40 00:01:54 00:03:50 0.497
field7115 40 00:01:54 00:03:50 0.497
field7116 40 00:01:54 00:03:55 0.485
field7117 40 00:01:54 00:03:52 0.491
field7118 40 00:01:54 00:03:52 0.491
field7119 40 00:01:54 00:03:52 0.491
field7120 40 00:01:54 00:03:58 0.480
field7121 40 00:01:54 00:03:52 0.491
field7122 40 00:01:54 00:03:55 0.485
field7123 40 00:01:54 00:04:01 0.474
field7124 40 00:01:54 00:04:09 0.458
field7125 40 00:01:54 00:03:52 0.491
field7126 40 00:01:54 00:03:47 0.503
field7127 40 00:01:54 00:03:58 0.480
field7128 40 00:01:54 00:03:55 0.485
field7129 40 00:01:54 00:03:52 0.491
field7130 40 00:01:54 00:03:55 0.485
field7131 40 00:01:54 00:03:58 0.480
field6867 40 00:01:54 00:03:58 0.480
field6868 40 00:01:54 00:04:01 0.474
field6608 40 00:01:54 00:04:01 0.474
field6609 40 00:01:54 00:03:58 0.480
field6610 40 00:01:54 00:04:01 0.474
field5857 40 00:01:54 00:04:01 0.474
field5858 40 00:01:54 00:03:55 0.485
field5859 40 00:01:54 00:03:55 0.485
field5860 40 00:01:54 00:03:58 0.480
field5861 40 00:01:54 00:04:01 0.474
field5862 40 00:01:54 00:04:01 0.474
field5863 40 00:01:54 00:04:01 0.474
field5864 40 00:01:54 00:03:50 0.497
field5865 40 00:01:54 00:04:04 0.469
field5866 40 00:01:54 00:04:06 0.463
field5867 40 00:01:54 00:04:01 0.474
field5868 40 00:01:54 00:04:01 0.474
field5869 40 00:01:54 00:04:04 0.469
field5870 40 00:01:54 00:03:52 0.491
field5871 40 00:01:54 00:04:06 0.463
field5872 40 00:01:54 00:03:55 0.485
field5873 40 00:01:54 00:03:55 0.485
field5627 40 00:01:54 00:03:58 0.480
field5628 40 00:01:54 00:04:01 0.474
field5629 40 00:01:54 00:04:17 0.445










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

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 1979:37:29 1034:17:02 945:20:27 264:41:43 226:52:54 226:52:54 226:52:54 194:11:01
Observed 1577:15:46
(79.67%)		 981:55:07
(94.94%)		 595:20:38
(62.98%)		 141:53:58
(53.61%)		 132:46:45
(58.52%)		 223:14:19
(98.39%)		 97:25:34
(42.94%)		 194:11:01
(N/A)
Remaining 402:21:42
(20.33%)		 52:21:54
(5.06%)		 349:59:48
(37.02%)		 122:47:45
(46.39%)		 94:06:08
(41.48%)		 03:38:34
(1.61%)		 129:27:19
(57.06%)		 00:00:00
(N/A)











Camera status (2025/09/30)



Return to index
Previous day Next day