PRIME Observation Log 2025/10/05

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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: 2025/10/05
Local observer:
Remote observer: Ryusei, Togo
Weather: clear, foggy
Comment:
Detector Temperature: 115.99999 +- 0.00054 K
ImageAcquisitionErrors occurred 4 times @
2025-10-05 23:40:14 SAT
2025-10-06 03:13:02 SAT
2025-10-06 03:22:25 SAT
2025-10-06 03:37:48 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:04:05
Morning 05:45:23
Science Observation
(Sun altitude < -10°)
Start 19:25:49
End 05:23:41
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:25:49
End 23:10:10


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 08:28:40 09:57:52 0.851
GB Time 03:29:42 03:44:21 0.935
Non-GB Time 04:58:57 06:13:31 0.800


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 164 00:07:49 00:28:45 0.272
GB 1832 01:27:19 03:29:42 0.416
NASA 982 00:46:48 02:10:04 0.360
SAAO 436 00:20:46 00:56:17 0.369
OU 436 00:20:46 00:56:17 0.369
ABC 436 00:20:46 00:56:17 0.369


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 164 00:07:49 00:28:45 0.272
SKY 148 00:07:03 00:28:18 0.249
Bulge 1684 01:20:16 03:01:24 0.443
all_sky_grid 1732 01:22:33 03:41:11 0.373
all__sky_grid 12 00:00:34 00:03:59 0.143
ToO 546 00:26:01 01:13:46 0.353


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 4 00:00:11 00:01:52 0.102
FLAT OH 160 00:07:37 00:26:52 0.284
GCsky_test 28 00:01:20 00:13:09 0.101
GCsky 120 00:05:43 00:15:09 0.377
GB60_dither OJ 68 00:03:14 00:07:33 0.429
GB80_dither OJ 48 00:02:17 00:05:06 0.448
GB79_dither OJ 48 00:02:17 00:04:52 0.470
GB78_dither OJ 48 00:02:17 00:04:32 0.503
GB77_dither OJ 48 00:02:17 00:04:49 0.474
GB76_dither OJ 48 00:02:17 00:04:49 0.474
GB75_dither OJ 48 00:02:17 00:04:52 0.470
GB74_dither OJ 48 00:02:17 00:05:09 0.444
GB91_dither OJ 48 00:02:17 00:05:28 0.418
GB92_dither OJ 48 00:02:17 00:05:06 0.448
GB93_dither OJ 48 00:02:17 00:04:55 0.465
GB94_dither OJ 48 00:02:17 00:05:11 0.440
GB95_dither OJ 48 00:02:17 00:05:06 0.448
GB96_dither OJ 48 00:02:17 00:04:49 0.474
GB97_dither OJ 48 00:02:17 00:04:32 0.503
GB114_dither OJ 48 00:02:17 00:05:28 0.418
GB113_dither OJ 48 00:02:17 00:04:55 0.465
GB112_dither OJ 48 00:02:17 00:05:25 0.421
GB111_dither OJ 48 00:02:17 00:05:23 0.425
GB110_dither OJ 48 00:02:17 00:04:49 0.474
GB109_dither OJ 48 00:02:17 00:04:41 0.487
GB108_dither OJ 48 00:02:17 00:05:11 0.441
GB76_dither OH 48 00:02:17 00:05:11 0.440
GB77_dither OH 48 00:02:17 00:04:55 0.464
GB78_dither OH 48 00:02:17 00:04:51 0.471
GB94_dither OH 72 00:03:25 00:11:35 0.296
GB111_dither OH 72 00:03:25 00:08:01 0.427
GB110_dither OH 72 00:03:25 00:07:11 0.477
GB109_dither OH 48 00:02:17 00:04:51 0.471
GB108_dither OH 24 00:01:08 00:02:33 0.448
GB91_dither OH 24 00:01:08 00:02:16 0.503
GB74_dither OH 24 00:01:08 00:02:35 0.440
GB92_dither OH 24 00:01:08 00:02:35 0.440
GB93_dither OH 24 00:01:08 00:02:19 0.493
GB75_dither OH 24 00:01:08 00:02:19 0.493
GB112_dither OH 24 00:01:08 00:02:35 0.442
GB79_dither OH 24 00:01:08 00:02:38 0.432
GB60_dither OH 8 00:00:22 00:01:58 0.193
field8179_test 28 00:01:20 00:15:32 0.086
field8179 40 00:01:54 00:04:51 0.392
field8180 40 00:01:54 00:03:55 0.485
field8181 24 00:01:08 00:19:22 0.059
field8192 40 00:01:54 00:04:17 0.444
field8193 40 00:01:54 00:03:47 0.503
field8194 40 00:01:54 00:04:04 0.469
field8195 40 00:01:54 00:04:18 0.443
field8196 40 00:01:54 00:04:04 0.469
field8197 40 00:01:54 00:04:06 0.463
field8198 40 00:01:54 00:04:06 0.463
field8199 40 00:01:54 00:04:12 0.453
field8200 40 00:01:54 00:06:41 0.285
field8201 40 00:01:54 00:04:21 0.437
field8202 40 00:01:54 00:03:49 0.499
field8203 40 00:01:54 00:04:06 0.463
field8204 40 00:01:54 00:04:43 0.403
field8205 40 00:01:54 00:04:00 0.475
field8206 40 00:01:54 00:04:04 0.469
field8207 40 00:01:54 00:04:01 0.474
field8208 40 00:01:54 00:04:18 0.443
field8209 40 00:01:54 00:03:47 0.503
field8210 40 00:01:54 00:04:04 0.469
field8211 40 00:01:54 00:04:07 0.463
field8212 40 00:01:54 00:03:52 0.492
field8213 40 00:01:54 00:04:37 0.412
field12016_ 12 00:00:34 00:03:59 0.143
field12016 40 00:01:54 00:04:34 0.416
field12017 40 00:01:54 00:03:55 0.485
field12018 40 00:01:54 00:04:12 0.453
field12019 40 00:01:54 00:04:12 0.453
field12020 40 00:01:54 00:04:27 0.428
field12021 40 00:01:54 00:04:11 0.455
field12948 40 00:01:54 00:04:06 0.463
field12947 40 00:01:54 00:03:56 0.485
field12946 40 00:01:54 00:04:54 0.389
field12641 40 00:01:54 00:04:06 0.464
field12642 76 00:03:37 00:14:06 0.257
field12642_test 4 00:00:11 00:01:24 0.136
field10814 40 00:01:54 00:04:06 0.463
field10815 40 00:01:54 00:03:52 0.491
field10816 40 00:01:54 00:03:58 0.479
field10817 40 00:01:54 00:04:57 0.385
field12338 40 00:01:54 00:04:26 0.429
field12339 40 00:01:54 00:04:23 0.434
field20484_test 40 00:01:54 00:17:17 0.110
field20484 506 00:24:07 00:56:29 0.427










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 230:19:15 357:22:01 0.644
Sep 190:24:38 318:36:32 0.598
Oct 26:11:15 50:10:08 0.522

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 1980:43:39 1038:22:18 942:21:20 263:51:34 226:09:55 226:09:55 226:09:55 201:13:54
Observed 1603:27:01
(80.95%)		 995:44:37
(95.89%)		 607:42:23
(64.49%)		 144:35:58
(54.80%)		 135:28:46
(59.90%)		 227:30:03
(100.59%)		 100:07:34
(44.27%)		 201:13:54
(N/A)
Remaining 377:16:38
(19.05%)		 42:37:41
(4.11%)		 334:38:57
(35.51%)		 119:15:35
(45.20%)		 90:41:09
(40.10%)		 -2:39:52
(0.00%)		 126:02:20
(55.73%)		 00:00:00
(N/A)











Camera status (2025/10/05)



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