PRIME Observation Log 2025/08/10

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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: 2025/08/10
Local observer: Togo
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00009 +- 0.00463 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:29:09
Morning 06:54:30
Science Observation
(Sun altitude < -10°)
Start 18:51:03
End 06:32:38
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:51:03
End 02:50:22


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:48:30 11:41:34 1.010
GB Time 07:47:15 07:59:18 0.975
Non-GB Time 04:01:15 03:42:16 1.085


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 460 00:21:55 00:41:37 0.527
GB 4632 03:40:47 07:47:15 0.473
SAAO 587 00:27:58 01:00:18 0.464
OU 587 00:27:58 01:00:18 0.464
NASA 587 00:27:58 01:00:18 0.464
ABC 587 00:27:58 01:00:18 0.464


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 460 00:21:55 00:41:37 0.527
Bulge 4560 03:37:21 07:39:29 0.473
SKY 72 00:03:25 00:07:45 0.443
all_sky_grid 2348 01:51:55 04:01:15 0.464


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OY 460 00:21:55 00:41:37 0.527
GB60_test OH 24 00:01:08 00:04:30 0.253
GB60_dither OH 120 00:05:43 00:11:41 0.489
GB74_dither OH 48 00:02:17 00:04:38 0.493
GB75_dither OH 216 00:10:17 00:21:03 0.489
GB76_dither OH 408 00:19:26 00:39:48 0.489
GB77_dither OH 384 00:18:18 00:37:40 0.486
GB78_dither OH 408 00:19:26 00:39:42 0.490
GB79_dither OH 240 00:11:26 00:25:12 0.454
GB80_dither OH 48 00:02:17 00:04:41 0.488
GB97_dither OH 48 00:02:17 00:04:41 0.488
GB96_dither OH 48 00:02:17 00:04:38 0.493
GB95_dither OH 120 00:05:43 00:11:52 0.482
GB94_dither OH 408 00:19:26 00:40:21 0.482
GB93_dither OH 120 00:05:43 00:11:46 0.485
GB92_dither OH 120 00:05:43 00:11:47 0.485
GB91_dither OH 48 00:02:17 00:04:35 0.498
GB108_dither OH 48 00:02:17 00:04:38 0.493
GB109_dither OH 216 00:10:17 00:21:14 0.485
GB110_dither OH 408 00:19:26 00:39:56 0.487
GB111_dither OH 432 00:20:35 00:42:40 0.482
GB112_dither OH 240 00:11:26 00:23:22 0.489
GB113_dither OH 144 00:06:51 00:21:43 0.316
GB114_dither OH 48 00:02:17 00:05:06 0.448
GCsky 72 00:03:25 00:07:45 0.443
GB71_dither OH 24 00:01:08 00:02:19 0.493
GB72_dither OH 24 00:01:08 00:02:21 0.484
GB73_dither OH 24 00:01:08 00:02:24 0.474
GB90_dither OH 24 00:01:08 00:02:19 0.493
GB89_dither OH 24 00:01:08 00:02:19 0.493
GB88_dither OH 24 00:01:08 00:02:24 0.474
GB105_dither OH 24 00:01:08 00:02:19 0.493
GB106_dither OH 24 00:01:08 00:02:19 0.493
GB107_dither OH 24 00:01:08 00:03:18 0.347
field9570_test 16 00:00:45 00:04:33 0.168
field15080_test 4 00:00:11 00:02:20 0.081
field2292_test 12 00:00:34 00:02:23 0.239
field2292 40 00:01:54 00:03:50 0.497
field2293 40 00:01:54 00:03:52 0.491
field2294 40 00:01:54 00:03:49 0.497
field2295 40 00:01:54 00:03:50 0.497
field2296 40 00:01:54 00:03:47 0.503
field2297 40 00:01:54 00:03:58 0.480
field2298 40 00:01:54 00:03:50 0.497
field2299 40 00:01:54 00:03:50 0.497
field2300 40 00:01:54 00:03:52 0.491
field2301 40 00:01:54 00:03:50 0.497
field2302 40 00:01:54 00:03:50 0.497
field2303 40 00:01:54 00:03:52 0.491
field2304 40 00:01:54 00:03:52 0.491
field2305 40 00:01:54 00:03:50 0.497
field2306 40 00:01:54 00:03:52 0.491
field2307 40 00:01:54 00:03:55 0.485
field2308 40 00:01:54 00:04:01 0.474
field2309 40 00:01:54 00:03:55 0.486
field2310 40 00:01:54 00:03:50 0.497
field2311 40 00:01:54 00:03:55 0.485
field2312 40 00:01:54 00:03:52 0.491
field2313 40 00:01:54 00:03:52 0.491
field2314 40 00:01:54 00:03:58 0.480
field2315 40 00:01:54 00:03:55 0.485
field2316 40 00:01:54 00:03:52 0.491
field2317 40 00:01:54 00:03:55 0.485
field2318 40 00:01:54 00:03:55 0.485
field2319 40 00:01:54 00:03:58 0.480
field2320 40 00:01:54 00:05:00 0.381
field2321 40 00:01:54 00:03:52 0.491
field2322 40 00:01:54 00:04:18 0.443
field2465 40 00:01:54 00:03:52 0.491
field2466 40 00:01:54 00:03:52 0.491
field2467 40 00:01:54 00:03:52 0.491
field2468 40 00:01:54 00:03:52 0.491
field2469 40 00:01:54 00:03:55 0.485
field2470 40 00:01:54 00:03:55 0.485
field2471 40 00:01:54 00:03:55 0.485
field2472 40 00:01:54 00:03:50 0.497
field2473 40 00:01:54 00:04:04 0.469
field2474 40 00:01:54 00:03:50 0.497
field2475 40 00:01:54 00:03:58 0.480
field2476 40 00:01:54 00:03:58 0.480
field2477 40 00:01:54 00:04:01 0.474
field2478 40 00:01:54 00:03:52 0.491
field2479 40 00:01:54 00:03:58 0.480
field2480 40 00:01:54 00:04:04 0.469
field2481 40 00:01:54 00:03:58 0.480
field2482 40 00:01:54 00:03:58 0.480
field2483 40 00:01:54 00:04:01 0.474
field2484 36 00:01:42 00:03:55 0.437
field2485 40 00:01:54 00:03:58 0.480
field2486 40 00:01:54 00:04:01 0.474
field2487 40 00:01:54 00:04:01 0.474
field2488 40 00:01:54 00:03:55 0.485
field2489 40 00:01:54 00:03:50 0.497
field2490 40 00:01:54 00:04:18 0.443
field2628 40 00:01:54 00:07:00 0.272










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 224:49:02 377:25:14 0.596
Aug 65:47:24 117:59:36 0.558

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 1903:40:27 986:58:38 916:41:49 256:40:30 220:00:26 220:00:26 220:00:26 169:38:42
Observed 1222:19:15
(64.21%)		 780:53:10
(79.12%)		 441:26:05
(48.15%)		 84:50:49
(33.06%)		 102:43:07
(46.69%)		 186:30:12
(84.77%)		 67:21:56
(30.62%)		 169:38:42
(N/A)
Remaining 681:21:11
(35.79%)		 206:05:27
(20.88%)		 475:15:43
(51.85%)		 171:49:41
(66.94%)		 117:17:18
(53.31%)		 33:30:14
(15.23%)		 152:38:29
(69.38%)		 00:00:00
(N/A)











Camera status (2025/08/10)



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