PRIME Observation Log 2025/06/05

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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: 2025/06/05
Local observer: Ryusei
Remote observer:
Weather: clear
Comment:
Detector Temperature: 113.99996 +- 0.00114 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:02:51
Morning 07:08:05
Science Observation
(Sun altitude < -10°)
Start 18:25:49
End 06:45:05
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:40:34
End 06:45:05


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:10:23 12:19:16 0.988
GB Time 11:10:15 11:04:31 1.009
Non-GB Time 01:00:08 01:14:44 0.805


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 452 00:21:32 00:50:51 0.424
GB 6256 04:58:12 11:10:15 0.445
SAAO 105 00:05:00 00:15:02 0.333
OU 105 00:05:00 00:15:02 0.333
NASA 105 00:05:00 00:15:02 0.333
ABC 105 00:05:00 00:15:02 0.333


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 452 00:21:32 00:50:51 0.424
all_sky_grid 420 00:20:01 01:00:08 0.333
Bulge 6064 04:49:03 10:45:12 0.448
SKY 192 00:09:09 00:25:02 0.365


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 8 00:00:22 00:11:41 0.033
FLAT OH 444 00:21:09 00:39:09 0.540
field2076_test 20 00:00:57 00:19:21 0.049
field2076 40 00:01:54 00:03:50 0.497
field2077 40 00:01:54 00:03:52 0.491
field2078 40 00:01:54 00:03:50 0.497
field2079 40 00:01:54 00:03:50 0.497
field2080 40 00:01:54 00:03:50 0.497
field2081 40 00:01:54 00:03:47 0.503
field2082 40 00:01:54 00:03:47 0.503
field2083 40 00:01:54 00:04:09 0.458
field2084 40 00:01:54 00:04:26 0.429
field2085 40 00:01:54 00:05:22 0.355
GB82_test OJ 64 00:03:03 00:19:22 0.157
GB81_dither OJ 48 00:02:17 00:04:35 0.498
GB98_dither OJ 48 00:02:17 00:04:32 0.503
GB115_dither OJ 48 00:02:17 00:06:30 0.352
GB80_dither OJ 96 00:04:34 00:09:08 0.501
GB97_dither OJ 96 00:04:34 00:09:19 0.491
GB114_dither OJ 96 00:04:34 00:09:33 0.479
GB79_dither OJ 144 00:06:51 00:13:57 0.492
GB78_dither OJ 144 00:06:51 00:13:52 0.495
GB77_dither OJ 192 00:09:09 00:19:57 0.459
GB96_dither OJ 96 00:04:34 00:09:16 0.493
GB95_dither OJ 144 00:06:51 00:19:11 0.358
GB94_dither OJ 144 00:06:51 00:13:46 0.498
GB93_dither OJ 144 00:06:51 00:13:54 0.493
GB92_dither OJ 144 00:06:51 00:14:03 0.488
GCsky 192 00:09:09 00:25:02 0.365
GB75_dither OJ 192 00:09:09 00:18:27 0.496
GB76_dither OJ 192 00:09:09 00:18:36 0.492
GB76_test OH 12 00:00:34 00:07:46 0.074
GB109_test OJ 4 00:00:11 00:01:27 0.131
GB109_dither OJ 96 00:04:34 00:09:13 0.496
GB110_dither OJ 96 00:04:34 00:09:19 0.491
GB111_dither OJ 96 00:04:34 00:09:13 0.496
GB112_dither OJ 96 00:04:34 00:09:19 0.491
GB113_dither OJ 96 00:04:34 00:11:22 0.402
GB74_test OJ 4 00:00:11 00:01:27 0.131
GB74_dither OJ 96 00:04:34 00:09:13 0.496
GB91_dither OJ 96 00:04:34 00:09:19 0.491
GB108_dither OJ 48 00:02:17 00:05:48 0.394
GB76_dither OH 360 00:17:09 00:35:26 0.484
GB77_dither OH 360 00:17:09 00:35:29 0.484
GB78_dither OH 360 00:17:09 00:35:21 0.485
GB94_dither OH 360 00:17:09 00:35:20 0.485
GB111_dither OH 360 00:17:09 00:37:15 0.460
GB110_dither OH 336 00:16:00 00:33:18 0.481
GB109_dither OH 168 00:08:00 00:16:36 0.482
GB92_dither OH 96 00:04:34 00:09:25 0.486
GB93_dither OH 96 00:04:34 00:09:27 0.484
GB75_dither OH 168 00:08:00 00:16:59 0.472
GB112_dither OH 168 00:08:00 00:18:56 0.423
GB79_dither OH 144 00:06:51 00:15:16 0.449
GB60_dither OH 96 00:04:34 00:09:27 0.483
GB95_dither OH 72 00:03:25 00:07:19 0.468
GB113_dither OH 48 00:02:17 00:04:43 0.484
GB74_dither OH 24 00:01:08 00:03:29 0.328
GB91_dither OH 24 00:01:08 00:02:33 0.448
GB108_dither OH 24 00:01:08 00:04:47 0.239
GB75_dither_test OJ 28 00:01:20 00:12:19 0.108










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 50:01:54 61:30:25 0.813

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 1855:34:25 959:16:49 896:17:35 250:57:43 215:06:37 215:06:37 215:06:37 148:22:34
Observed 771:50:55
(41.60%)		 416:29:41
(43.42%)		 355:21:13
(39.65%)		 56:44:44
(22.61%)		 83:55:59
(39.02%)		 166:05:41
(77.21%)		 48:34:48
(22.58%)		 148:22:34
(N/A)
Remaining 1083:43:29
(58.40%)		 542:47:08
(56.58%)		 540:56:21
(60.35%)		 194:12:59
(77.39%)		 131:10:37
(60.98%)		 49:00:56
(22.79%)		 166:31:48
(77.42%)		 00:00:00
(N/A)











Camera status (2025/06/05)



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