PRIME Observation Log 2025/07/15

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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: 2025/07/15
Local observer: Togo, Takuto
Remote observer: None
Weather: Clear
Comment:
Detector Temperature: 114.00004 +- 0.00250 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:13:41
Morning 07:11:43
Science Observation
(Sun altitude < -10°)
Start 18:36:26
End 06:48:59
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:36:26
End 04:32:35


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:26:25 12:12:32 0.937
GB Time 09:54:08 09:56:08 0.997
Non-GB Time 01:32:16 02:16:23 0.677


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 200 00:09:32 00:21:47 0.437
GB 5696 04:31:30 09:54:08 0.457
SAAO 232 00:11:03 00:23:04 0.479
OU 232 00:11:03 00:23:04 0.479
NASA 232 00:11:03 00:23:04 0.479
ABC 232 00:11:03 00:23:04 0.479


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 928 00:44:14 01:32:16 0.479
TWILIGHT 200 00:09:32 00:21:47 0.437
Bulge 5552 04:24:38 09:37:05 0.459
SKY 144 00:06:51 00:17:02 0.403


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
test4 4 00:00:11 00:00:41 0.276
FLAT OH 200 00:09:32 00:21:47 0.437
GB80_dither_test OJ 28 00:01:20 00:09:17 0.144
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB77_dither OJ 48 00:02:17 00:04:35 0.498
GB76_dither OJ 48 00:02:17 00:04:32 0.503
GB75_dither OJ 48 00:02:17 00:04:38 0.493
GB74_dither OJ 48 00:02:17 00:05:31 0.414
GB91_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:32 0.503
GB93_dither OJ 48 00:02:17 00:04:35 0.498
GB94_dither OJ 48 00:02:17 00:04:35 0.498
GB95_dither OJ 48 00:02:17 00:04:38 0.493
GB96_dither OJ 48 00:02:17 00:04:32 0.503
GB97_dither OJ 48 00:02:17 00:04:52 0.470
GCsky 144 00:06:51 00:17:02 0.403
GB76_dither_test OH 8 00:00:22 00:02:06 0.181
GB76_dither OH 480 00:22:52 00:47:36 0.481
GB77_dither OH 480 00:22:52 00:47:10 0.485
GB78_dither OH 480 00:22:52 00:47:24 0.483
GB94_dither OH 496 00:23:38 00:56:39 0.417
GB111_dither OH 480 00:22:52 00:47:16 0.484
GB110_dither OH 480 00:22:52 00:47:10 0.485
GB109_dither OH 240 00:11:26 00:23:39 0.484
GB92_dither OH 120 00:05:43 00:11:44 0.487
GB93_dither OH 120 00:05:43 00:11:46 0.485
GB75_dither OH 240 00:11:26 00:23:59 0.477
GB112_dither OH 216 00:10:17 00:21:14 0.485
GB79_dither OH 216 00:10:17 00:26:42 0.385
GB60_dither OH 120 00:05:43 00:11:52 0.482
GB95_dither OH 120 00:05:43 00:14:15 0.401
GB113_dither OH 96 00:04:34 00:09:27 0.484
GB107_dither OH 24 00:01:08 00:02:16 0.503
GB106_dither OH 24 00:01:08 00:02:16 0.503
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 00:02:19 0.493
GB90_dither OH 24 00:01:08 00:03:29 0.328
GB73_dither OH 24 00:01:08 00:02:21 0.484
GB72_dither OH 24 00:01:08 00:02:24 0.474
GB71_dither OH 24 00:01:08 00:03:51 0.296
GB114_dither_test OJ 4 00:00:11 00:01:01 0.185
GB114_dither OJ 48 00:02:17 00:04:38 0.493
GB113_dither OJ 48 00:02:17 00:04:43 0.484
GB112_dither OJ 48 00:02:17 00:04:38 0.493
GB111_dither OJ 48 00:02:17 00:04:32 0.503
GB110_dither OJ 48 00:02:17 00:08:53 0.257
field11338_test 4 00:00:11 00:01:52 0.102
field11338 40 00:01:54 00:03:47 0.503
field11339 40 00:01:54 00:03:50 0.497
field11340 40 00:01:54 00:03:52 0.491
field11341 40 00:01:54 00:03:55 0.485
field11342 40 00:01:54 00:03:55 0.485
field11343 40 00:01:54 00:03:52 0.491
field11344 40 00:01:54 00:03:50 0.497
field11345 40 00:01:54 00:03:55 0.485
field11346 40 00:01:54 00:04:01 0.474
field11347 40 00:01:54 00:03:58 0.480
field11348 40 00:01:54 00:03:52 0.491
field11349 40 00:01:54 00:03:52 0.491
field11350 40 00:01:54 00:03:55 0.485
field11351 40 00:01:54 00:03:55 0.485
field11352 40 00:01:54 00:03:52 0.491
field11353 40 00:01:54 00:03:50 0.497
field11354 40 00:01:54 00:03:55 0.485
field11355 40 00:01:54 00:03:52 0.491
field11356 40 00:01:54 00:03:47 0.503
field11357 40 00:01:54 00:03:47 0.503
field11358 40 00:01:54 00:03:55 0.485
field11359 40 00:01:54 00:03:58 0.480
field11360 40 00:01:54 00:04:05 0.465










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 97:00:05 184:21:13 0.526

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 1865:41:46 954:18:46 911:22:59 255:11:14 218:43:55 218:43:55 218:43:55 159:01:06
Observed 1028:48:46
(55.14%)		 632:10:25
(66.24%)		 396:38:20
(43.52%)		 67:04:00
(26.28%)		 94:15:16
(43.09%)		 176:24:57
(80.65%)		 58:54:05
(26.93%)		 159:01:06
(N/A)
Remaining 836:53:00
(44.86%)		 322:08:21
(33.76%)		 514:44:38
(56.48%)		 188:07:13
(73.72%)		 124:28:38
(56.91%)		 42:18:57
(19.35%)		 159:49:49
(73.07%)		 00:00:00
(N/A)











Camera status (2025/07/15)



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