PRIME Observation Log 2025/05/25

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: 2025/05/25
Local observer: Ryusei
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00005 +- 0.00092 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:05:31
Morning 07:02:15
Science Observation
(Sun altitude < -10°)
Start 18:28:12
End 06:39:31
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:23:49
End 06:39:31


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:20:20 12:11:18 1.012
GB Time 10:21:05 10:15:42 1.009
Non-GB Time 01:59:14 01:55:36 1.031


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.)
GB 6240 04:57:26 10:21:05 0.479
CALIB 132 00:06:17 00:17:09 0.367
SAAO 275 00:13:06 00:29:48 0.440
OU 275 00:13:06 00:29:48 0.440
NASA 275 00:13:06 00:29:48 0.440
ABC 275 00:13:06 00:29:48 0.440


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 1100 00:52:26 01:59:14 0.440
test 24 00:01:08 00:09:05 0.126
Bulge 6072 04:49:25 09:54:29 0.487
SKY 144 00:06:51 00:17:30 0.392
TWILIGHT 132 00:06:17 00:17:09 0.367


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field15561_test 20 00:00:57 00:10:48 0.088
field15561 40 00:01:54 00:03:52 0.491
field15562 40 00:01:54 00:03:52 0.491
field15563 40 00:01:54 00:03:50 0.497
field15564 40 00:01:54 00:03:47 0.503
field15565 40 00:01:54 00:03:47 0.503
field15566 40 00:01:54 00:03:52 0.491
field15567 40 00:01:54 00:03:52 0.491
field15568 40 00:01:54 00:03:52 0.491
field15569 40 00:01:54 00:04:29 0.425
field15570 40 00:01:54 00:03:52 0.491
field15571 40 00:01:54 00:03:50 0.497
field15572 40 00:01:54 00:03:50 0.497
field15573 40 00:01:54 00:03:52 0.491
field15574 40 00:01:54 00:03:50 0.497
field15575 40 00:01:54 00:03:50 0.497
field15576 40 00:01:54 00:03:52 0.491
field15577 40 00:01:54 00:03:50 0.497
field15578 40 00:01:54 00:03:52 0.491
field15579 40 00:01:54 00:03:55 0.485
field15580 40 00:01:54 00:04:32 0.420
field15581 40 00:01:54 00:03:50 0.497
field15582 40 00:01:54 00:03:50 0.497
field15583 40 00:01:54 00:03:50 0.497
field15584 40 00:01:54 00:03:47 0.503
field15585 40 00:01:54 00:03:50 0.497
field15586 40 00:01:54 00:04:29 0.425
field15587 40 00:01:54 00:06:21 0.300
test 24 00:01:08 00:09:05 0.126
GB63_dither OJ 48 00:02:17 00:04:38 0.493
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:05:03 0.452
GB62_dither OJ 48 00:02:17 00:04:35 0.498
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 00:04:49 0.474
GB58_dither OJ 48 00:02:17 00:04:32 0.503
GB57_dither OJ 48 00:02:17 00:04:35 0.498
GB74_dither OJ 48 00:02:17 00:04:35 0.498
GB75_dither OJ 48 00:02:17 00:04:32 0.503
GB76_dither OJ 48 00:02:17 00:04:32 0.503
GB77_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB96_dither OJ 48 00:02:17 00:04:38 0.493
GB95_dither OJ 48 00:02:17 00:04:32 0.503
GB94_dither OJ 48 00:02:17 00:04:38 0.493
GB93_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:38 0.493
GB91_dither OJ 48 00:02:17 00:04:43 0.484
GCsky 144 00:06:51 00:17:30 0.392
GB108_dither OJ 48 00:02:17 00:04:41 0.488
GB109_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:35 0.498
GB111_dither OJ 48 00:02:17 00:04:32 0.503
GB112_dither OJ 48 00:02:17 00:04:35 0.498
GB113_dither OJ 48 00:02:17 00:04:38 0.493
GB114_dither OJ 48 00:02:17 00:04:35 0.498
GB131_dither OJ 48 00:02:17 00:04:32 0.503
GB130_dither OJ 48 00:02:17 00:04:35 0.498
GB129_dither OJ 48 00:02:17 00:04:38 0.493
GB128_dither OJ 48 00:02:17 00:04:35 0.498
GB127_dither OJ 48 00:02:17 00:04:38 0.493
GB126_dither OJ 48 00:02:17 00:04:32 0.503
GB125_dither OJ 48 00:02:17 00:05:11 0.440
GB63_dither OH 120 00:05:43 00:11:49 0.484
GB62_dither OH 120 00:05:43 00:11:47 0.485
GB61_dither OH 96 00:04:34 00:09:30 0.481
GB60_dither OH 96 00:04:34 00:09:36 0.476
GB59_dither OH 96 00:04:34 00:09:36 0.476
GB58_dither OH 96 00:04:34 00:09:25 0.486
GB57_dither OH 96 00:04:34 00:09:16 0.493
GB74_dither OH 96 00:04:34 00:09:30 0.481
GB75_dither OH 96 00:04:34 00:09:33 0.479
GB76_dither OH 96 00:04:34 00:09:25 0.486
GB77_dither OH 96 00:04:34 00:09:36 0.476
GB78_dither OH 96 00:04:34 00:09:22 0.488
GB79_dither OH 120 00:05:43 00:12:01 0.476
GB80_dither OH 120 00:05:43 00:12:03 0.474
GB97_dither OH 120 00:05:43 00:11:52 0.482
GB96_dither OH 120 00:05:43 00:12:09 0.470
GB95_dither OH 96 00:04:34 00:09:33 0.479
GB94_dither OH 96 00:04:34 00:12:41 0.361
GB93_dither OH 72 00:03:25 00:07:03 0.487
GB92_dither OH 72 00:03:25 00:07:03 0.487
GB91_dither OH 72 00:03:25 00:07:05 0.484
GB108_dither OH 72 00:03:25 00:07:11 0.477
GB109_dither OH 72 00:03:25 00:07:05 0.484
GB110_dither OH 72 00:03:25 00:06:54 0.496
GB111_dither OH 72 00:03:25 00:07:05 0.484
GB112_dither OH 72 00:03:25 00:07:05 0.483
GB113_dither OH 96 00:04:34 00:09:27 0.484
GB114_dither OH 96 00:04:34 00:09:30 0.481
GB131_dither OH 96 00:04:34 00:09:30 0.481
GB130_dither OH 96 00:04:34 00:09:19 0.491
GB129_dither OH 72 00:03:25 00:07:08 0.480
GB128_dither OH 72 00:03:25 00:07:03 0.487
GB127_dither OH 72 00:03:25 00:07:11 0.477
GB126_dither OH 72 00:03:25 00:06:57 0.493
GB125_dither OH 72 00:03:25 00:16:34 0.207
GB61 OH 48 00:02:17 00:04:07 0.555
GB60 OH 48 00:02:17 00:04:07 0.555
GB59 OH 48 00:02:17 00:04:07 0.555
GB58 OH 48 00:02:17 00:04:04 0.561
GB57 OH 48 00:02:17 00:04:07 0.555
GB74 OH 48 00:02:17 00:04:04 0.561
GB75 OH 48 00:02:17 00:04:04 0.561
GB76 OH 48 00:02:17 00:04:04 0.561
GB77 OH 48 00:02:17 00:04:01 0.568
GB78 OH 48 00:02:17 00:04:18 0.531
GB95 OH 48 00:02:17 00:04:07 0.555
GB94 OH 48 00:02:17 00:04:07 0.555
GB93 OH 48 00:02:17 00:04:07 0.555
GB92 OH 48 00:02:17 00:04:07 0.555
GB91 OH 48 00:02:17 00:04:13 0.542
GB108 OH 48 00:02:17 00:04:10 0.548
GB109 OH 48 00:02:17 00:04:15 0.536
GB110 OH 48 00:02:17 00:04:13 0.542
GB111 OH 48 00:02:17 00:04:15 0.536
GB112 OH 48 00:02:17 00:04:07 0.555
GB129 OH 48 00:02:17 00:04:13 0.542
GB128 OH 48 00:02:17 00:04:18 0.531
GB127 OH 48 00:02:17 00:04:13 0.542
GB126 OH 48 00:02:17 00:04:07 0.555
GB125 OH 48 00:02:17 00:04:13 0.542
FLAT_test OJ 12 00:00:34 00:06:38 0.086
FLAT OJ 120 00:05:43 00:10:30 0.544










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 193:20:53 299:06:29 0.646

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 1821:56:22 931:45:55 890:10:26 249:14:55 213:38:30 213:38:30 213:38:30 144:10:03
Observed 670:44:58
(36.82%)		 330:05:24
(35.43%)		 340:39:34
(38.27%)		 51:56:22
(20.84%)		 81:24:35
(38.11%)		 161:15:12
(75.48%)		 46:03:24
(21.56%)		 144:10:03
(N/A)
Remaining 1151:11:23
(63.18%)		 601:40:31
(64.57%)		 549:30:51
(61.73%)		 197:18:33
(79.16%)		 132:13:54
(61.89%)		 52:23:18
(24.52%)		 167:35:05
(78.44%)		 00:00:00
(N/A)











Camera status (2025/05/25)



Return to index
Previous day Next day