PRIME Observation Log 2025/02/17

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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: 2025/02/17
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 111.68524 +- 0.09198 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:47:55
Morning 05:53:46
Science Observation
(Sun altitude < -10°)
Start 20:10:29
End 05:31:12
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 02:45:09
End 05:31:12


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:01:44 09:20:43 0.966
GB Time 02:00:21 02:46:03 0.725
Non-GB Time 07:01:22 06:34:39 1.068


Institute Statistics
- ALLSKY time is equally distributed to each institute
- ToO time is equally distributed to OU, NASA
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 272 00:12:57 00:28:56 0.448
ALLSKY 1796 01:25:36 03:53:35 0.366
ToO 3038 02:24:48 03:07:46 0.771
GB 1056 00:50:20 02:00:21 0.418
OU 1968 01:33:48 02:32:17 0.616
NASA 1968 01:33:48 02:32:17 0.616
SAAO 449 00:21:24 00:58:23 0.366
ABC 449 00:21:24 00:58:23 0.366


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 272 00:12:57 00:28:56 0.448
all_sky_grid 4834 03:50:25 07:01:22 0.547
Bulge 1032 00:49:11 01:52:59 0.435
SKY 24 00:01:08 00:07:21 0.155


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OY 4 00:00:11 00:01:18 0.145
FLAT OY 120 00:05:43 00:10:24 0.549
field1577_test 8 00:00:22 00:13:39 0.028
field1577 40 00:01:54 00:03:47 0.503
field1578 40 00:01:54 00:03:47 0.503
field1579 40 00:01:54 00:03:55 0.485
field1580 40 00:01:54 00:03:50 0.497
field1581 40 00:01:54 00:03:50 0.497
field1582 40 00:01:54 00:03:47 0.503
field1583 40 00:01:54 00:03:50 0.497
field1584 40 00:01:54 00:12:17 0.155
field1723_test 8 00:00:22 00:05:25 0.070
field1723 40 00:01:54 00:03:47 0.503
field1724 40 00:01:54 00:03:47 0.503
field1725 40 00:01:54 00:03:50 0.497
field1726 40 00:01:54 00:03:47 0.503
field1727 40 00:01:54 00:03:47 0.503
field1728 40 00:01:54 00:05:19 0.358
field1868_test 4 00:00:11 00:02:06 0.090
field1868 40 00:01:54 00:03:47 0.503
field1869 40 00:01:54 00:03:47 0.503
field1870 40 00:01:54 00:03:47 0.503
field1871 40 00:01:54 00:03:47 0.503
field1872 40 00:01:54 00:03:47 0.503
field1873 40 00:01:54 00:03:50 0.497
field1874 40 00:01:54 00:03:50 0.497
field1875 40 00:01:54 00:03:47 0.503
field1876 40 00:01:54 00:03:47 0.503
field1877 40 00:01:54 00:05:19 0.358
field2347_test 4 00:00:11 00:09:04 0.021
field2347 40 00:01:54 00:03:50 0.497
field2348 40 00:01:54 00:03:50 0.497
field2349 40 00:01:54 00:03:47 0.503
field2350 40 00:01:54 00:03:47 0.503
field2351 40 00:01:54 00:03:47 0.503
field2352 40 00:01:54 00:03:47 0.503
field2353 40 00:01:54 00:13:58 0.136
field9724_test 12 00:00:34 00:05:00 0.114
field9724 40 00:01:54 00:03:50 0.497
field9725 40 00:01:54 00:03:50 0.497
field9726 40 00:01:54 00:03:47 0.503
field9727 40 00:01:54 00:03:47 0.503
field9728 40 00:01:54 00:03:50 0.497
field9729 40 00:01:54 00:03:50 0.497
field9730 40 00:01:54 00:03:50 0.497
field9731 40 00:01:54 00:03:55 0.485
field9732 40 00:01:54 00:03:52 0.491
field9733 40 00:01:54 00:03:47 0.503
field9734 40 00:01:54 00:03:47 0.503
field9735 40 00:01:54 00:03:47 0.503
field9736 40 00:01:54 00:12:42 0.150
field1257_test 68 00:03:14 00:11:03 0.293
field1257 330 00:15:43 00:18:36 0.845
field1256 330 00:15:43 00:18:36 0.845
field1255 330 00:15:43 00:18:36 0.845
field1134 330 00:15:43 00:18:42 0.841
field1020 330 00:15:43 00:18:36 0.845
field912 330 00:15:43 00:18:45 0.839
field913 330 00:15:43 00:25:34 0.615
field914 330 00:15:43 00:18:39 0.843
field915 330 00:15:43 00:20:34 0.765
GB63_test OH 24 00:01:08 00:11:03 0.103
GB63_dither OH 48 00:02:17 00:04:46 0.479
GB62_dither OH 48 00:02:17 00:04:43 0.484
GB61_dither OH 48 00:02:17 00:04:41 0.488
GB60_dither OH 48 00:02:17 00:04:35 0.498
GB59_dither OH 48 00:02:17 00:04:38 0.493
GB58_dither OH 48 00:02:17 00:04:43 0.483
GB57_dither OH 48 00:02:17 00:07:09 0.320
GB74_dither OH 24 00:01:08 00:02:24 0.474
GB75_dither OH 24 00:01:08 00:02:19 0.493
GB76_dither OH 24 00:01:08 00:02:19 0.493
GB77_dither OH 24 00:01:08 00:02:21 0.484
GB78_dither OH 24 00:01:08 00:02:21 0.484
GB79_dither OH 24 00:01:08 00:02:19 0.493
GB80_dither OH 24 00:01:08 00:02:35 0.440
GB97_dither OH 24 00:01:08 00:02:21 0.484
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB95_dither OH 24 00:01:08 00:02:21 0.484
GB94_dither OH 24 00:01:08 00:02:19 0.493
GB93_dither OH 24 00:01:08 00:02:21 0.484
GB92_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB108_dither OH 24 00:01:08 00:02:21 0.484
GB109_dither OH 24 00:01:08 00:02:21 0.484
GB110_dither OH 24 00:01:08 00:02:19 0.493
GB111_dither OH 24 00:01:08 00:02:19 0.493
GB112_dither OH 24 00:01:08 00:02:24 0.474
GB113_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:52 0.397
GB131_dither OH 24 00:01:08 00:02:21 0.484
GB130_dither OH 24 00:01:08 00:02:21 0.483
GB129_dither OH 24 00:01:08 00:02:19 0.493
GB128_dither OH 24 00:01:08 00:02:21 0.484
GB127_dither OH 24 00:01:08 00:02:16 0.503
GB126_dither OH 24 00:01:08 00:02:19 0.493
GB125_dither OH 24 00:01:08 00:02:30 0.456
GCsky 24 00:01:08 00:07:21 0.155
FLAT_test OH 4 00:00:11 00:04:43 0.040
FLAT OH 144 00:06:51 00:12:29 0.549










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 51:27:51 154:12:01 0.334

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 1837:00:14 930:59:31 906:00:42 253:40:59 217:26:34 217:26:34 217:26:34 32:02:31
Observed 155:03:21
(8.44%)		 09:14:27
(0.99%)		 145:48:53
(16.09%)		 09:22:07
(3.69%)		 37:41:25
(17.33%)		 93:15:46
(42.89%)		 05:29:33
(2.53%)		 32:02:31
(N/A)
Remaining 1681:56:53
(91.56%)		 921:45:04
(99.01%)		 760:11:49
(83.91%)		 244:18:52
(96.31%)		 179:45:08
(82.67%)		 124:10:47
(57.11%)		 211:57:01
(97.47%)		 00:00:00
(N/A)











Camera status (2025/02/17)