PRIME Observation Log 2025/10/28

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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: 2025/10/28
Local observer: Kansuke
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 116.00002 +- 0.00091 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:22:32
Morning 05:18:04
Science Observation
(Sun altitude < -10°)
Start 19:45:25
End 04:55:11
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:45:25
End 21:39:44


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:18:29 09:09:46 1.016
GB Time 01:45:38 01:54:18 0.924
Non-GB Time 07:32:50 07:15:27 1.040


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 320 00:15:15 00:36:53 0.413
GB 836 00:39:50 01:45:38 0.377
SAAO 931 00:44:22 01:53:12 0.392
OU 931 00:44:22 01:53:12 0.392
NASA 931 00:44:22 01:53:12 0.392
ABC 931 00:44:22 01:53:12 0.392


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 320 00:15:15 00:36:53 0.413
Bulge 812 00:38:42 01:42:34 0.377
SKY 24 00:01:08 00:03:04 0.372
all_sky_grid 3724 02:57:30 07:32:50 0.392


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OY 320 00:15:15 00:36:53 0.413
GB60_test OJ 16 00:00:45 00:06:06 0.125
GCsky 24 00:01:08 00:03:04 0.372
GB80_dither OJ 48 00:02:17 00:05:44 0.399
GB97_dither OJ 48 00:02:17 00:05:41 0.402
GB114_dither OJ 48 00:02:17 00:05:44 0.399
GB113_dither OJ 48 00:02:17 00:05:41 0.402
GB96_dither OJ 48 00:02:17 00:05:41 0.402
GB79_dither OJ 48 00:02:17 00:05:41 0.402
GB78_dither OJ 48 00:02:17 00:05:44 0.399
GB95_dither OJ 48 00:02:17 00:05:44 0.399
GB112_dither OJ 48 00:02:17 00:05:47 0.396
GB111_dither OJ 48 00:02:17 00:05:44 0.399
GB94_dither OJ 48 00:02:17 00:05:44 0.399
GB77_dither OJ 48 00:02:17 00:05:44 0.399
GB60_dither OJ 48 00:02:17 00:05:44 0.399
GB76_dither OJ 48 00:02:17 00:05:41 0.402
GB93_dither OJ 48 00:02:17 00:05:44 0.399
GB110_dither OJ 48 00:02:17 00:05:41 0.402
GB109_dither OJ 28 00:01:20 00:04:54 0.272
field11022_test 4 00:00:11 00:00:48 0.238
field11022 40 00:01:54 00:04:50 0.394
field12553 40 00:01:54 00:04:58 0.383
field15381 40 00:01:54 00:04:47 0.398
field15382 40 00:01:54 00:05:01 0.380
field13516 40 00:01:54 00:04:47 0.398
field13517 40 00:01:54 00:04:47 0.398
field13518 40 00:01:54 00:04:47 0.398
field13519 40 00:01:54 00:04:44 0.402
field13832 40 00:01:54 00:04:47 0.398
field14461 40 00:01:54 00:04:47 0.398
field13831 40 00:01:54 00:04:44 0.402
field13830 40 00:01:54 00:05:01 0.380
field15414 40 00:01:54 00:04:47 0.398
field15415 40 00:01:54 00:04:47 0.398
field15416 40 00:01:54 00:04:44 0.402
field15417 40 00:01:54 00:04:58 0.383
field16372 40 00:01:54 00:04:58 0.383
field16379 40 00:01:54 00:05:37 0.339
field8170 40 00:01:54 00:04:47 0.398
field8171 40 00:01:54 00:04:47 0.398
field8172 40 00:01:54 00:04:47 0.398
field8169 40 00:01:54 00:04:50 0.394
field7898 40 00:01:54 00:04:50 0.394
field8168 40 00:01:54 00:04:47 0.398
field7897 40 00:01:54 00:04:47 0.398
field8167 40 00:01:54 00:04:52 0.391
field7896 40 00:01:54 00:04:50 0.394
field8166 40 00:01:54 00:04:47 0.398
field7895 40 00:01:54 00:04:47 0.398
field8165 40 00:01:54 00:04:50 0.394
field7894 40 00:01:54 00:04:44 0.402
field7893 40 00:01:54 00:04:47 0.398
field7624 40 00:01:54 00:04:50 0.394
field7623 40 00:01:54 00:04:52 0.391
field7904 40 00:01:54 00:04:44 0.402
field7905 40 00:01:54 00:04:47 0.398
field7906 40 00:01:54 00:04:44 0.402
field7907 40 00:01:54 00:04:47 0.398
field7908 40 00:01:54 00:04:44 0.402
field7909 40 00:01:54 00:04:47 0.398
field8181 40 00:01:54 00:04:44 0.402
field8182 40 00:01:54 00:04:50 0.394
field8183 40 00:01:54 00:04:47 0.398
field8184 40 00:01:54 00:04:50 0.394
field8185 40 00:01:54 00:04:47 0.398
field8186 40 00:01:54 00:04:50 0.394
field8187 40 00:01:54 00:04:50 0.394
field7916 40 00:01:54 00:04:47 0.398
field7915 40 00:01:54 00:04:47 0.398
field7914 40 00:01:54 00:04:50 0.394
field7646 40 00:01:54 00:04:50 0.394
field7645 40 00:01:54 00:04:44 0.402
field7644 40 00:01:54 00:04:52 0.391
field6855 40 00:01:54 00:04:44 0.402
field6856 40 00:01:54 00:04:47 0.398
field6857 40 00:01:54 00:04:47 0.398
field6858 40 00:01:54 00:04:47 0.398
field6859 40 00:01:54 00:04:50 0.394
field6595 40 00:01:54 00:04:47 0.398
field6596 40 00:01:54 00:04:47 0.398
field6597 40 00:01:54 00:04:47 0.398
field6598 40 00:01:54 00:04:50 0.394
field6342 40 00:01:54 00:04:44 0.402
field6343 40 00:01:54 00:05:18 0.360
field2675 40 00:01:54 00:04:50 0.394
field2502 40 00:01:54 00:04:55 0.387
field2503 40 00:01:54 00:04:50 0.394
field2504 40 00:01:54 00:04:50 0.394
field2336 40 00:01:54 00:04:50 0.394
field2505 40 00:01:54 00:04:47 0.398
field2337 40 00:01:54 00:04:47 0.398
field2506 40 00:01:54 00:04:50 0.394
field2338 40 00:01:54 00:04:52 0.391
field2339 40 00:01:54 00:04:47 0.398
field2176 40 00:01:54 00:04:50 0.394
field2177 40 00:01:54 00:04:50 0.394
field2175 40 00:01:54 00:05:48 0.328
field9645 40 00:01:54 00:04:50 0.394
field9646 40 00:01:54 00:04:50 0.394
field9647 40 00:01:54 00:04:50 0.394
field9648 40 00:01:54 00:04:55 0.387
field9649 40 00:01:54 00:04:50 0.394
field9650 40 00:01:54 00:04:50 0.394
field9651 40 00:01:54 00:04:50 0.394
field9652 40 00:01:54 00:04:55 0.387
field9653 40 00:01:54 00:04:50 0.394
field9654 40 00:01:54 00:04:50 0.394
field9655 40 00:01:54 00:04:50 0.394
field9656 40 00:01:54 00:04:55 0.387
field9657 40 00:01:54 00:04:52 0.391
field10242 40 00:01:54 00:04:47 0.398
field10243 40 00:01:54 00:04:52 0.391
field9369 40 00:01:54 00:06:03 0.315










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 169:45:59 269:42:14 0.629

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 2014:32:23 1049:47:27 964:44:56 270:07:46 231:32:23 231:32:23 231:32:23 214:04:11
Observed 1747:01:47
(86.72%)		 1039:14:18
(98.99%)		 707:47:29
(73.37%)		 166:59:24
(61.82%)		 158:24:34
(68.42%)		 259:52:30
(112.24%)		 122:31:00
(52.91%)		 214:04:11
(N/A)
Remaining 267:30:35
(13.28%)		 10:33:09
(1.01%)		 256:57:26
(26.63%)		 103:08:22
(38.18%)		 73:07:49
(31.58%)		 -29:39:53
(0.00%)		 109:01:22
(47.09%)		 00:00:00
(N/A)











Camera status (2025/10/28)



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