PRIME Observation Log 2025/07/16

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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: 2025/07/16
Local observer: Togo
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 113.99999 +- 0.00140 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:14:14
Morning 07:11:20
Science Observation
(Sun altitude < -10°)
Start 18:36:57
End 06:48:38
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:36:57
End 04:28:39


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:34:09 12:11:40 1.031
GB Time 09:40:41 09:51:42 0.981
Non-GB Time 02:53:27 02:19:58 1.239


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 360 00:17:09 00:34:34 0.496
GB 5344 04:14:43 09:40:41 0.439
SAAO 417 00:19:52 00:43:21 0.458
OU 417 00:19:52 00:43:21 0.458
NASA 417 00:19:52 00:43:21 0.458
ABC 417 00:19:52 00:43:21 0.458


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 360 00:17:09 00:34:34 0.496
Bulge 5272 04:11:17 09:32:51 0.439
SKY 72 00:03:25 00:07:50 0.437
all_sky_grid 1668 01:19:30 02:53:27 0.458


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 40 00:01:54 00:07:05 0.269
GB76_test OH 28 00:01:20 00:15:36 0.086
GB76_dither OH 456 00:21:44 00:45:25 0.479
GB77_dither OH 456 00:21:44 00:44:57 0.484
GB78_dither OH 456 00:21:44 00:45:19 0.480
GB94_dither OH 456 00:21:44 00:45:00 0.483
GB111_dither OH 456 00:21:44 00:45:19 0.480
GB110_dither OH 456 00:21:44 00:46:10 0.471
GB109_dither OH 240 00:11:26 00:27:21 0.418
GB92_dither OH 120 00:05:43 00:11:51 0.482
GB93_dither OH 120 00:05:43 00:12:06 0.472
GB75_dither OH 216 00:10:17 00:21:54 0.470
GB112_dither OH 216 00:10:17 00:29:39 0.347
GB79_dither OH 216 00:10:17 00:23:01 0.447
GB60_dither OH 120 00:05:43 00:11:49 0.484
GB95_dither OH 96 00:04:34 00:09:25 0.486
GB113_dither OH 96 00:04:34 00:09:25 0.486
GCsky 72 00:03:25 00:07:50 0.437
GB74_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:16 0.503
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB71_dither_test OJ 8 00:00:22 00:01:49 0.208
GB71_dither OJ 48 00:02:17 00:16:16 0.141
GB107_dither OH 24 00:01:08 00:02:21 0.484
GB106_dither OH 24 00:01:08 00:02:19 0.493
GB105_dither OH 24 00:01:08 00:02:21 0.484
GB88_dither OH 24 00:01:08 00:02:19 0.493
GB89_dither OH 24 00:01:08 00:02:21 0.484
GB90_dither OH 24 00:01:08 00:02:21 0.484
GB73_dither OH 24 00:01:08 00:02:21 0.484
GB72_dither OH 24 00:01:08 00:02:21 0.483
GB71_dither OH 24 00:01:08 00:02:35 0.440
GB83_dither OH 24 00:01:08 00:02:21 0.484
GB100_dither OH 24 00:01:08 00:02:24 0.474
GB117_dither OH 24 00:01:08 00:02:19 0.493
GB116_dither OH 24 00:01:08 00:02:19 0.493
GB99_dither OH 24 00:01:08 00:02:21 0.484
GB82_dither OH 24 00:01:08 00:02:21 0.484
GB81_dither OH 24 00:01:08 00:02:19 0.493
GB98_dither OH 24 00:01:08 00:05:38 0.203
GB115_dither OH 24 00:01:08 00:04:22 0.261
GB74_test OJ 4 00:00:11 00:00:50 0.225
GB74_dither OJ 24 00:01:08 00:02:24 0.474
GB75_dither OJ 24 00:01:08 00:02:24 0.474
GB76_dither OJ 24 00:01:08 00:02:24 0.474
GB77_dither OJ 24 00:01:08 00:02:21 0.484
GB78_dither OJ 24 00:01:08 00:02:24 0.474
GB79_dither OJ 24 00:01:08 00:02:19 0.493
GB80_dither OJ 24 00:01:08 00:02:19 0.493
GB97_dither OJ 24 00:01:08 00:02:21 0.484
GB96_dither OJ 24 00:01:08 00:02:19 0.493
GB95_dither OJ 24 00:01:08 00:02:19 0.493
GB94_dither OJ 24 00:01:08 00:02:16 0.504
GB93_dither OJ 24 00:01:08 00:02:21 0.484
GB92_dither OJ 24 00:01:08 00:02:16 0.503
GB91_dither OJ 24 00:01:08 00:02:16 0.503
GB108_dither OJ 24 00:01:08 00:02:21 0.484
GB109_dither OJ 24 00:01:08 00:02:21 0.484
GB110_dither OJ 24 00:01:08 00:02:21 0.483
GB111_dither OJ 24 00:01:08 00:02:19 0.493
GB112_dither OJ 24 00:01:08 00:02:24 0.474
GB113_dither OJ 24 00:01:08 00:02:19 0.493
GB114_dither OJ 24 00:01:08 00:07:41 0.149
field11361_test 28 00:01:20 00:08:23 0.159
field11361 40 00:01:54 00:03:58 0.480
field11362 40 00:01:54 00:03:52 0.491
field11363 40 00:01:54 00:03:55 0.485
field11364 40 00:01:54 00:03:52 0.491
field11365 40 00:01:54 00:03:58 0.480
field11366 40 00:01:54 00:03:55 0.485
field11367 40 00:01:54 00:03:50 0.497
field11368 40 00:01:54 00:04:01 0.474
field11369 40 00:01:54 00:03:52 0.491
field11370 40 00:01:54 00:03:55 0.485
field11371 40 00:01:54 00:03:58 0.480
field11372 40 00:01:54 00:03:58 0.480
field11373 40 00:01:54 00:03:55 0.485
field11374 40 00:01:54 00:04:01 0.474
field11375 40 00:01:54 00:03:58 0.480
field11376 40 00:01:54 00:04:01 0.474
field11377 40 00:01:54 00:03:52 0.491
field11378 40 00:01:54 00:03:55 0.485
field11379 40 00:01:54 00:03:55 0.485
field11380 40 00:01:54 00:03:50 0.497
field11381 40 00:01:54 00:03:58 0.480
field11382 40 00:01:54 00:04:01 0.474
field11383 40 00:01:54 00:03:58 0.480
field11384 40 00:01:54 00:03:58 0.480
field11385 40 00:01:54 00:03:52 0.491
field11386 40 00:01:54 00:03:55 0.485
field11387 40 00:01:54 00:03:52 0.491
field11388 40 00:01:54 00:04:51 0.392
field11638 40 00:01:54 00:03:50 0.497
field11639 40 00:01:54 00:05:00 0.381
field11389 40 00:01:54 00:03:58 0.480
field11390 40 00:01:54 00:04:01 0.474
field11391 40 00:01:54 00:04:01 0.474
field11392 40 00:01:54 00:04:01 0.474
field11393 40 00:01:54 00:03:52 0.491
field11394 40 00:01:54 00:04:01 0.474
field11395 40 00:01:54 00:04:04 0.469
field11396 40 00:01:54 00:04:04 0.469
field11397 40 00:01:54 00:03:55 0.485
field11398 40 00:01:54 00:04:04 0.469
field11399 40 00:01:54 00:04:57 0.385
FLAT OJ 320 00:15:15 00:27:28 0.555










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 244:24:55 372:31:50 0.656
Jun 209:59:39 370:50:11 0.566
Jul 109:34:14 196:32:54 0.557

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 1872:10:05 959:03:37 913:06:27 255:40:12 219:08:44 219:08:44 219:08:44 159:35:40
Observed 1041:22:55
(55.62%)		 641:51:07
(66.93%)		 399:31:48
(43.75%)		 67:47:22
(26.51%)		 94:58:38
(43.34%)		 177:08:19
(80.83%)		 59:37:27
(27.21%)		 159:35:40
(N/A)
Remaining 830:47:09
(44.38%)		 317:12:30
(33.07%)		 513:34:39
(56.25%)		 187:52:49
(73.49%)		 124:10:06
(56.66%)		 42:00:25
(19.17%)		 159:31:17
(72.79%)		 00:00:00
(N/A)











Camera status (2025/07/16)



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