PRIME Observation Log 2025/03/09

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Observation Log (Time is in UT)

Date: 2025/03/09
Local observer: Yuki Satoh,
Remote observer: Asahi Idei, Seiya Nakayama,
Weather: windy
Comment:
Detector Temperature: 113.99982 +- 0.00593 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:24:01
Morning 06:10:34
Science Observation
(Sun altitude < -10°)
Start 19:45:39
End 05:48:55
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 01:26:31
End 05:48:55


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:47:13 10:03:16 0.973
GB Time 04:09:34 04:22:23 0.951
Non-GB Time 05:37:39 05:40:52 0.991


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 384 00:18:18 00:36:45 0.498
ALLSKY 3016 02:23:45 05:03:22 0.474
NASA 930 00:44:19 01:50:07 0.403
GB 2456 01:57:04 04:09:34 0.469
SAAO 754 00:35:56 01:15:50 0.474
OU 754 00:35:56 01:15:50 0.474
ABC 754 00:35:56 01:15:50 0.474


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 384 00:18:18 00:36:45 0.498
all_sky_grid 3016 02:23:45 05:03:22 0.474
ToO 176 00:08:23 00:34:16 0.245
Bulge 2456 01:57:04 04:09:34 0.469


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 4 00:00:11 00:00:56 0.203
FLAT OH 380 00:18:06 00:35:49 0.506
field19606_test 12 00:00:34 00:06:52 0.083
field19606 40 00:01:54 00:04:37 0.412
field19607 40 00:01:54 00:04:04 0.469
field19608 40 00:01:54 00:03:50 0.497
field19609 40 00:01:54 00:04:20 0.439
field19610 40 00:01:54 00:04:06 0.463
field19611 40 00:01:54 00:03:47 0.503
field19612 40 00:01:54 00:04:04 0.469
field19613 40 00:01:54 00:03:47 0.503
field19614 40 00:01:54 00:04:57 0.385
field19902 40 00:01:54 00:03:47 0.503
field19903 40 00:01:54 00:03:52 0.491
field19904 40 00:01:54 00:03:50 0.497
field19905 40 00:01:54 00:03:52 0.491
field19906 40 00:01:54 00:03:52 0.491
field19907 40 00:01:54 00:03:52 0.491
field19908 40 00:01:54 00:03:50 0.497
field19909 40 00:01:54 00:03:47 0.503
field19910 40 00:01:54 00:03:47 0.503
field19911 40 00:01:54 00:03:47 0.503
field19912 40 00:01:54 00:03:50 0.497
field19913 40 00:01:54 00:03:50 0.497
field19914 40 00:01:54 00:03:50 0.497
field19915 40 00:01:54 00:03:50 0.497
field19916 40 00:01:54 00:03:50 0.497
field19917 40 00:01:54 00:03:50 0.497
field19918 40 00:01:54 00:03:50 0.497
field19919 40 00:01:54 00:03:50 0.497
field19920 40 00:01:54 00:04:09 0.458
field20206 40 00:01:54 00:03:50 0.497
field20207 40 00:01:54 00:03:47 0.503
field20208 40 00:01:54 00:03:52 0.491
field20209 40 00:01:54 00:03:58 0.480
field20210 40 00:01:54 00:03:55 0.485
field20211 40 00:01:54 00:03:52 0.491
field20212 40 00:01:54 00:03:55 0.485
field20213 40 00:01:54 00:03:52 0.491
field20214 40 00:01:54 00:03:50 0.497
field20215 40 00:01:54 00:03:47 0.503
field20216 40 00:01:54 00:03:47 0.503
field20217 40 00:01:54 00:03:47 0.503
field20218 40 00:01:54 00:03:47 0.503
field20219 40 00:01:54 00:03:55 0.485
field20220 40 00:01:54 00:03:50 0.497
field20221 40 00:01:54 00:03:52 0.491
field20222 40 00:01:54 00:03:50 0.497
field20223 40 00:01:54 00:05:42 0.334
field13095 160 00:07:37 00:29:29 0.259
field1798_test 4 00:00:11 00:02:06 0.090
field1798 40 00:01:54 00:03:50 0.497
field1947 40 00:01:54 00:03:47 0.503
field2101 40 00:01:54 00:03:50 0.497
field2260 40 00:01:54 00:03:47 0.503
field2261 40 00:01:54 00:03:47 0.503
field2425 40 00:01:54 00:03:47 0.503
field2426 40 00:01:54 00:03:52 0.491
field2595 40 00:01:54 00:03:50 0.497
field2596 40 00:01:54 00:03:50 0.497
field2771 40 00:01:54 00:03:58 0.480
field2952 40 00:01:54 00:03:55 0.485
field3519 40 00:01:54 00:03:50 0.497
field3520 40 00:01:54 00:03:47 0.503
field3521 40 00:01:54 00:03:50 0.497
field3522 40 00:01:54 00:03:47 0.503
field3523 40 00:01:54 00:03:52 0.491
field3717 40 00:01:54 00:03:55 0.485
field3718 40 00:01:54 00:03:55 0.485
field3719 40 00:01:54 00:03:47 0.503
field3720 40 00:01:54 00:03:47 0.503
field3721 40 00:01:54 00:03:47 0.503
field3722 40 00:01:54 00:03:50 0.497
field3723 40 00:01:54 00:03:50 0.497
field3724 40 00:01:54 00:03:58 0.480
field3725 40 00:01:54 00:03:52 0.491
field3920 40 00:01:54 00:03:47 0.503
field3921 40 00:01:54 00:03:47 0.503
field3922 40 00:01:54 00:03:47 0.503
field3923 40 00:01:54 00:04:51 0.392
field13095_test 16 00:00:45 00:04:47 0.159
GB94_dither OY 60 00:02:51 00:06:36 0.432
GB80_dither OY 48 00:02:17 00:04:35 0.498
GB97_dither OY 48 00:02:17 00:04:38 0.493
GB96_dither OY 48 00:02:17 00:04:35 0.498
GB95_dither OY 48 00:02:17 00:04:32 0.503
GB93_dither OY 48 00:02:17 00:04:35 0.498
GB92_dither OY 48 00:02:17 00:04:38 0.493
GB91_dither OY 48 00:02:17 00:04:32 0.503
GB108_dither OY 48 00:02:17 00:04:35 0.498
GB109_dither OY 48 00:02:17 00:04:35 0.498
GB110_dither OY 48 00:02:17 00:04:35 0.498
GB111_dither OY 48 00:02:17 00:04:32 0.503
GB112_dither OY 48 00:02:17 00:04:32 0.503
GB113_dither OY 48 00:02:17 00:04:35 0.498
GB114_dither OY 48 00:02:17 00:04:38 0.493
GB131_dither OY 48 00:02:17 00:04:32 0.503
GB130_dither OY 48 00:02:17 00:04:32 0.503
GB129_dither OY 48 00:02:17 00:04:38 0.493
GB128_dither OY 48 00:02:17 00:04:32 0.503
GB127_dither OY 48 00:02:17 00:04:35 0.498
GB126_dither OY 48 00:02:17 00:04:35 0.498
GB125_dither OY 48 00:02:17 00:05:25 0.421
GB63_dither OH 48 00:02:17 00:04:38 0.493
GB62_dither OH 72 00:03:25 00:11:06 0.309
GB61_dither OH 48 00:02:17 00:04:41 0.488
GB60_dither OH 44 00:02:05 00:04:43 0.443
GB59_dither OH 48 00:02:17 00:04:38 0.493
GB58_dither OH 48 00:02:17 00:04:43 0.484
GB57_dither OH 48 00:02:17 00:04:43 0.483
GB74_dither OH 48 00:02:17 00:04:41 0.488
GB75_dither OH 48 00:02:17 00:04:38 0.493
GB76_dither OH 48 00:02:17 00:04:43 0.483
GB77_dither OH 48 00:02:17 00:04:38 0.493
GB78_dither OH 48 00:02:17 00:04:41 0.488
GB79_dither OH 48 00:02:17 00:04:43 0.484
GB80_dither OH 48 00:02:17 00:04:41 0.488
GB97_dither OH 48 00:02:17 00:04:43 0.484
GB96_dither OH 48 00:02:17 00:04:41 0.488
GB95_dither OH 48 00:02:17 00:04:41 0.488
GB94_dither OH 48 00:02:17 00:04:38 0.493
GB93_dither OH 48 00:02:17 00:04:35 0.498
GB92_dither OH 48 00:02:17 00:04:38 0.493
GB91_dither OH 48 00:02:17 00:04:35 0.498
GB108_dither OH 48 00:02:17 00:08:36 0.266
GB109_dither OH 24 00:01:08 00:02:19 0.493
GB110_dither OH 24 00:01:08 00:02:19 0.493
GB111_dither OH 24 00:01:08 00:02:21 0.484
GB112_dither OH 24 00:01:08 00:02:19 0.493
GB113_dither OH 24 00:01:08 00:02:21 0.484
GB114_dither OH 24 00:01:08 00:02:27 0.465
GB131_dither OH 24 00:01:08 00:02:16 0.503
GB130_dither OH 24 00:01:08 00:02:19 0.493
GB129_dither OH 24 00:01:08 00:02:27 0.465
GB128_dither OH 24 00:01:08 00:02:16 0.503
GB127_dither OH 24 00:01:08 00:02:19 0.493
GB126_dither OH 24 00:01:08 00:02:16 0.503
GB125_dither OH 24 00:01:08 00:04:30 0.253










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 33:06:30 89:13:10 0.371

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 1775:22:52 909:55:33 865:27:19 242:19:39 207:42:33 207:42:33 207:42:33 86:29:15
Observed 190:36:43
(10.74%)		 24:19:48
(2.67%)		 166:16:54
(19.21%)		 14:20:33
(5.92%)		 42:39:52
(20.54%)		 98:48:29
(47.57%)		 10:27:59
(5.04%)		 86:29:15
(N/A)
Remaining 1584:46:09
(89.26%)		 885:35:44
(97.33%)		 699:10:24
(80.79%)		 227:59:05
(94.08%)		 165:02:41
(79.46%)		 108:54:03
(52.43%)		 197:14:34
(94.96%)		 00:00:00
(N/A)











Camera status (2025/03/09)