PRIME Observation Log 2025/05/03

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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: 2025/05/03
Local observer: Seiya Nakayama
Remote observer:
Weather: cloudy
Comment:
Detector Temperature: 113.99998 +- 0.00220 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:19:14
Morning 06:48:15
Science Observation
(Sun altitude < -10°)
Start 18:41:11
End 06:26:16
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 21:50:18
End 06:26:16


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:57:28 11:45:03 1.018
GB Time 08:33:30 08:35:57 0.995
Non-GB Time 03:23:57 03:09:06 1.079


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 412 00:19:38 00:38:05 0.516
GB 4864 03:51:51 08:33:30 0.452
SAAO 464 00:22:07 00:50:59 0.434
OU 464 00:22:07 00:50:59 0.434
NASA 464 00:22:07 00:50:59 0.434
ABC 464 00:22:07 00:50:59 0.434


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 412 00:19:38 00:38:05 0.516
all_sky_grid 1856 01:28:28 03:23:57 0.434
Bulge 4768 03:47:16 08:22:15 0.452
SKY 96 00:04:34 00:11:14 0.407


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT ZO 4 00:00:11 00:00:41 0.276
FLAT_test OH 8 00:00:22 00:01:44 0.219
FLAT OH 400 00:19:04 00:35:39 0.535
field10924_test 56 00:02:40 00:25:06 0.106
field10924 40 00:01:54 00:03:47 0.503
field10925 40 00:01:54 00:03:47 0.503
field10926 40 00:01:54 00:03:47 0.503
field10927 40 00:01:54 00:03:50 0.497
field10928 40 00:01:54 00:03:50 0.497
field10929 40 00:01:54 00:03:50 0.497
field10930 40 00:01:54 00:03:50 0.497
field10931 40 00:01:54 00:03:47 0.503
field10932 40 00:01:54 00:03:47 0.503
field10933 40 00:01:54 00:03:47 0.503
field10934 40 00:01:54 00:03:47 0.503
field10935 40 00:01:54 00:03:50 0.497
field10936 40 00:01:54 00:03:50 0.497
field10937 40 00:01:54 00:03:52 0.491
field10938 40 00:01:54 00:03:52 0.491
field10939 40 00:01:54 00:03:50 0.497
field10940 40 00:01:54 00:03:47 0.503
field10941 40 00:01:54 00:03:47 0.503
field10942 40 00:01:54 00:03:50 0.497
field10943 40 00:01:54 00:03:47 0.503
field10944 40 00:01:54 00:03:47 0.503
field10945 40 00:01:54 00:03:47 0.503
field10946 40 00:01:54 00:03:47 0.503
field10947 40 00:01:54 00:03:47 0.503
field10948 40 00:01:54 00:03:47 0.503
field10949 40 00:01:54 00:03:47 0.503
field10950 40 00:01:54 00:03:47 0.503
field10951 40 00:01:54 00:03:47 0.503
field10952 40 00:01:54 00:03:47 0.503
field10953 40 00:01:54 00:03:47 0.503
field10954 40 00:01:54 00:03:47 0.503
field10955 40 00:01:54 00:03:50 0.497
field10956 40 00:01:54 00:03:50 0.497
field10957 40 00:01:54 00:03:55 0.485
field10958 40 00:01:54 00:03:52 0.491
field10959 40 00:01:54 00:03:52 0.491
field10960 40 00:01:54 00:03:47 0.503
field10961 40 00:01:54 00:03:47 0.503
field10962 40 00:01:54 00:03:47 0.503
field10963 40 00:01:54 00:03:47 0.503
field10964 40 00:01:54 00:03:47 0.503
field10965 40 00:01:54 00:03:47 0.503
field10966 40 00:01:54 00:03:47 0.503
field10967 40 00:01:54 00:03:47 0.503
field10968 40 00:01:54 00:11:12 0.170
GB63_dither_test OJ 64 00:03:03 00:09:45 0.313
GB63_dither OJ 48 00:02:17 00:04:38 0.493
GB62_dither OJ 48 00:02:17 00:04:38 0.493
GB61_dither OJ 48 00:02:17 00:04:35 0.498
GB60_dither OJ 48 00:02:17 00:04:35 0.498
GB59_dither OJ 48 00:02:17 00:04:35 0.498
GB58_dither OJ 48 00:02:17 00:04:35 0.498
GB57_dither OJ 48 00:02:17 00:04:32 0.503
GB74_dither OJ 48 00:02:17 00:04:32 0.503
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB76_dither OJ 48 00:02:17 00:04:32 0.503
GB77_dither OJ 48 00:02:17 00:04:38 0.493
GB78_dither OJ 48 00:02:17 00:04:38 0.493
GB79_dither OJ 116 00:05:31 00:19:20 0.286
GB80_dither OJ 64 00:03:03 00:11:56 0.255
GB79_dither_test OJ 8 00:00:22 00:02:31 0.151
GB97_dither OJ 48 00:02:17 00:04:32 0.503
GB96_dither OJ 48 00:02:17 00:04:38 0.493
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB94_dither OJ 48 00:02:17 00:04:35 0.498
GB93_dither OJ 48 00:02:17 00:04:32 0.503
GB92_dither OJ 48 00:02:17 00:04:38 0.493
GB91_dither OJ 48 00:02:17 00:04:35 0.498
GB108_dither OJ 48 00:02:17 00:04:32 0.503
GB109_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:32 0.503
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB112_dither OJ 48 00:02:17 00:04:46 0.479
GB113_dither_test OJ 60 00:02:51 00:10:37 0.269
GB113_dither OJ 48 00:02:17 00:04:41 0.488
GB114_dither OJ 48 00:02:17 00:04:35 0.498
GB131_dither OJ 48 00:02:17 00:04:35 0.498
GB130_dither OJ 48 00:02:17 00:04:38 0.493
GB129_dither OJ 48 00:02:17 00:04:32 0.503
GB128_dither OJ 48 00:02:17 00:04:32 0.503
GB127_dither OJ 48 00:02:17 00:04:38 0.493
GB126_dither OJ 48 00:02:17 00:04:35 0.498
GB125_dither OJ 48 00:02:17 00:04:49 0.474
GCsky 96 00:04:34 00:11:14 0.407
GB63_dither_test OH 64 00:03:03 00:07:13 0.422
GB63_dither OH 96 00:04:34 00:09:30 0.481
GB62_dither OH 96 00:04:34 00:09:33 0.479
GB61_dither OH 96 00:04:34 00:09:25 0.486
GB60_dither OH 96 00:04:34 00:09:25 0.486
GB59_dither OH 96 00:04:34 00:09:25 0.486
GB58_dither OH 96 00:04:34 00:09:19 0.491
GB57_dither OH 96 00:04:34 00:09:25 0.486
GB74_dither OH 96 00:04:34 00:09:25 0.486
GB75_dither OH 96 00:04:34 00:09:22 0.488
GB76_dither OH 96 00:04:34 00:09:22 0.488
GB77_dither OH 96 00:04:34 00:09:30 0.481
GB78_dither OH 96 00:04:34 00:18:56 0.242
GB79_dither OH 72 00:03:25 00:07:28 0.459
GB80_dither OH 72 00:03:25 00:07:14 0.474
GB97_dither OH 72 00:03:25 00:07:19 0.468
GB96_dither OH 72 00:03:25 00:07:17 0.471
GB95_dither OH 72 00:03:25 00:07:22 0.465
GB94_dither OH 72 00:03:25 00:07:14 0.474
GB93_dither OH 72 00:03:25 00:07:11 0.477
GB92_dither OH 72 00:03:25 00:07:11 0.477
GB91_dither OH 72 00:03:25 00:07:03 0.487
GB108_dither OH 72 00:03:25 00:07:14 0.474
GB109_dither OH 72 00:03:25 00:07:05 0.484
GB110_dither OH 72 00:03:25 00:07:08 0.480
GB111_dither OH 72 00:03:25 00:07:08 0.480
GB112_dither OH 72 00:03:25 00:07:05 0.484
GB113_dither OH 72 00:03:25 00:07:05 0.484
GB114_dither OH 72 00:03:25 00:07:00 0.490
GB131_dither OH 72 00:03:25 00:07:17 0.471
GB130_dither OH 72 00:03:25 00:07:05 0.484
GB129_dither OH 72 00:03:25 00:07:08 0.480
GB128_dither OH 72 00:03:25 00:07:11 0.477
GB127_dither OH 72 00:03:25 00:07:14 0.474
GB126_dither OH 72 00:03:25 00:07:11 0.477
GB125_dither OH 72 00:03:25 00:07:47 0.440










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 18:38:27 35:10:47 0.530

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 1779:18:18 899:19:23 879:58:54 246:23:41 211:11:44 211:11:44 211:11:44 130:07:29
Observed 496:09:04
(27.88%)		 193:28:20
(21.51%)		 302:40:44
(34.40%)		 42:10:04
(17.11%)		 70:55:53
(33.59%)		 152:23:16
(72.15%)		 37:11:29
(17.61%)		 130:07:29
(N/A)
Remaining 1283:09:14
(72.12%)		 705:51:03
(78.49%)		 577:18:10
(65.60%)		 204:13:37
(82.89%)		 140:15:51
(66.41%)		 58:48:27
(27.85%)		 174:00:14
(82.39%)		 00:00:00
(N/A)











Camera status (2025/05/03)



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