PRIME Observation Log 2025/04/04

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: 2025/04/04
Local observer: Ryo Ogawa
Remote observer:
Weather: cloudy->clear
Comment:
Detector Temperature: 113.99992 +- 0.00132 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:50:31
Morning 06:28:58
Science Observation
(Sun altitude < -10°)
Start 19:11:50
End 06:07:37
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 23:44:19
End 06:07:37


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 10:19:33 10:55:47 0.945
GB Time 06:17:01 06:23:18 0.984
Non-GB Time 04:02:32 04:32:29 0.890


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 476 00:22:41 00:55:52 0.406
GB 3652 02:54:04 06:17:01 0.462
SAAO 624 00:29:44 01:00:38 0.491
OU 624 00:29:44 01:00:38 0.491
NASA 624 00:29:44 01:00:38 0.491
ABC 624 00:29:44 01:00:38 0.491


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 476 00:22:41 00:55:52 0.406
all_sky_grid 2496 01:58:58 04:02:32 0.491
Bulge 3580 02:50:38 06:09:10 0.462
SKY 72 00:03:25 00:07:50 0.437


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OY 4 00:00:11 00:00:41 0.276
FLAT_test ZO 36 00:01:42 00:17:14 0.100
FLAT ZO 436 00:20:46 00:37:57 0.548
field11808_test 16 00:00:45 00:03:41 0.206
field11808 40 00:01:54 00:03:50 0.497
field11809 40 00:01:54 00:03:50 0.497
field11810 40 00:01:54 00:03:47 0.503
field11811 40 00:01:54 00:03:47 0.503
field11812 40 00:01:54 00:03:47 0.503
field11813 40 00:01:54 00:03:50 0.497
field11814 40 00:01:54 00:03:50 0.497
field11815 40 00:01:54 00:03:50 0.497
field11816 40 00:01:54 00:03:55 0.485
field11817 40 00:01:54 00:03:50 0.497
field11818 40 00:01:54 00:03:58 0.480
field11819 40 00:01:54 00:03:50 0.497
field11820 40 00:01:54 00:03:50 0.497
field11821 40 00:01:54 00:03:55 0.485
field11822 40 00:01:54 00:03:50 0.497
field11823 40 00:01:54 00:03:50 0.497
field11824 40 00:01:54 00:03:47 0.503
field11825 40 00:01:54 00:03:47 0.503
field11826 40 00:01:54 00:03:47 0.503
field11827 40 00:01:54 00:03:47 0.503
field11828 40 00:01:54 00:03:47 0.503
field11829 40 00:01:54 00:03:47 0.503
field11830 40 00:01:54 00:03:50 0.497
field11831 40 00:01:54 00:03:55 0.485
field11832 40 00:01:54 00:03:52 0.491
field11833 40 00:01:54 00:03:50 0.497
field11834 40 00:01:54 00:03:50 0.497
field11835 40 00:01:54 00:03:47 0.503
field11836 40 00:01:54 00:03:47 0.503
field11837 40 00:01:54 00:03:50 0.497
field11838 40 00:01:54 00:03:50 0.497
field11839 40 00:01:54 00:03:47 0.503
field11840 40 00:01:54 00:03:47 0.503
field11841 40 00:01:54 00:03:47 0.503
field11842 40 00:01:54 00:03:47 0.503
field11843 40 00:01:54 00:03:47 0.503
field11844 40 00:01:54 00:03:50 0.497
field11845 40 00:01:54 00:03:50 0.497
field11846 40 00:01:54 00:03:55 0.485
field11847 40 00:01:54 00:03:52 0.491
field11848 40 00:01:54 00:03:52 0.491
field11849 40 00:01:54 00:03:52 0.491
field11850 40 00:01:54 00:03:47 0.503
field11851 40 00:01:54 00:03:47 0.503
field11852 40 00:01:54 00:03:47 0.503
field11853 40 00:01:54 00:03:47 0.503
field11854 40 00:01:54 00:03:47 0.503
field11855 40 00:01:54 00:03:47 0.503
field11856 40 00:01:54 00:03:47 0.503
field11857 40 00:01:54 00:03:47 0.503
field11858 40 00:01:54 00:03:47 0.503
field11859 40 00:01:54 00:03:47 0.503
field11860 40 00:01:54 00:03:50 0.497
field11861 40 00:01:54 00:03:52 0.491
field11862 40 00:01:54 00:03:52 0.491
field11863 40 00:01:54 00:03:52 0.491
field11864 40 00:01:54 00:03:52 0.491
field11865 40 00:01:54 00:03:52 0.491
field11866 40 00:01:54 00:03:47 0.503
field11867 40 00:01:54 00:03:47 0.503
field11868 40 00:01:54 00:03:55 0.485
field11869 40 00:01:54 00:05:14 0.364
GB63_dither_test OH 24 00:01:08 00:07:02 0.163
GB63_dither OH 120 00:05:43 00:11:55 0.480
GB62_dither OH 120 00:05:43 00:11:49 0.484
GB61_dither OH 120 00:05:43 00:12:51 0.445
GB60_dither OH 120 00:05:43 00:11:52 0.482
GB59_dither OH 124 00:05:54 00:16:36 0.356
GB58_dither OH 120 00:05:43 00:13:16 0.431
GB57_dither OH 120 00:05:43 00:14:54 0.384
GB74_dither OH 120 00:05:43 00:12:29 0.458
GB75_dither OH 120 00:05:43 00:11:49 0.484
GB76_dither OH 120 00:05:43 00:11:44 0.487
GB77_dither OH 120 00:05:43 00:11:38 0.491
GB78_dither OH 120 00:05:43 00:11:41 0.489
GB79_dither OH 120 00:05:43 00:12:29 0.458
GB80_dither OH 96 00:04:34 00:09:19 0.491
GB97_dither OH 96 00:04:34 00:09:27 0.484
GB96_dither OH 96 00:04:34 00:09:19 0.491
GB95_dither OH 96 00:04:34 00:09:19 0.491
GB94_dither OH 96 00:04:34 00:09:25 0.486
GB93_dither OH 96 00:04:34 00:09:22 0.488
GB92_dither OH 96 00:04:34 00:09:16 0.493
GB91_dither OH 96 00:04:34 00:09:25 0.486
GB108_dither OH 96 00:04:34 00:09:16 0.493
GB109_dither OH 96 00:04:34 00:09:16 0.493
GB110_dither OH 96 00:04:34 00:09:25 0.486
GB111_dither OH 96 00:04:34 00:09:19 0.491
GB112_dither OH 96 00:04:34 00:09:58 0.459
GB113_dither OH 72 00:03:25 00:06:54 0.497
GB114_dither OH 72 00:03:25 00:07:00 0.490
GB131_dither OH 72 00:03:25 00:06:57 0.493
GB130_dither OH 72 00:03:25 00:07:00 0.490
GB129_dither OH 72 00:03:25 00:07:03 0.487
GB128_dither OH 96 00:04:34 00:11:00 0.416
GB127_dither OH 96 00:04:34 00:09:19 0.491
GB126_dither OH 96 00:04:34 00:09:22 0.488
GB125_dither OH 96 00:04:34 00:10:09 0.450
GCsky 72 00:03:25 00:07:50 0.437










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 28:14:47 43:31:39 0.649

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 1792:46:00 916:57:47 875:48:13 245:13:30 210:11:34 210:11:34 210:11:34 107:28:55
Observed 344:42:46
(19.23%)		 101:53:07
(11.11%)		 242:49:39
(27.73%)		 29:31:30
(12.04%)		 59:23:19
(28.25%)		 128:15:52
(61.02%)		 25:38:56
(12.20%)		 107:28:55
(N/A)
Remaining 1448:03:14
(80.77%)		 815:04:40
(88.89%)		 632:58:33
(72.27%)		 215:41:59
(87.96%)		 150:48:14
(71.75%)		 81:55:41
(38.98%)		 184:32:38
(87.80%)		 00:00:00
(N/A)











Camera status (2025/04/04)



Return to index
Previous day Next day