PRIME Observation Log 2025/07/01

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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: 2025/07/01
Local observer: Takuto
Remote observer: None
Weather: Cloudy
Comment:
Detector Temperature: 114.00016 +- 0.00211 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:07:01
Morning 07:14:26
Science Observation
(Sun altitude < -10°)
Start 18:30:05
End 06:51:23
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:30:05
End 05:27:38


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:38:47 12:21:17 0.538
GB Time 04:54:33 10:57:32 0.448
Non-GB Time 01:44:13 01:23:44 1.245


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.)
GB 2908 02:18:36 04:54:33 0.471
CALIB 164 00:07:49 00:21:04 0.371
SAAO 261 00:12:26 00:26:03 0.477
OU 261 00:12:26 00:26:03 0.477
NASA 261 00:12:26 00:26:03 0.477
ABC 261 00:12:26 00:26:03 0.477


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 2836 02:15:10 04:45:55 0.473
SKY 72 00:03:25 00:08:38 0.397
all_sky_grid 1044 00:49:45 01:44:13 0.477
TWILIGHT 164 00:07:49 00:21:04 0.371


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB76_dither_test OH 28 00:01:20 00:10:41 0.125
GB76_dither OH 192 00:09:09 00:18:47 0.487
GB77_dither OH 192 00:09:09 00:18:47 0.487
GB78_dither OH 192 00:09:09 00:18:36 0.492
GB94_dither OH 192 00:09:09 00:18:33 0.493
GB111_dither OH 192 00:09:09 00:18:50 0.486
GB110_dither OH 192 00:09:09 00:18:44 0.488
GB109_dither OH 96 00:04:34 00:09:16 0.493
GB92_dither OH 48 00:02:17 00:04:41 0.488
GB93_dither OH 48 00:02:17 00:04:43 0.484
GB75_dither OH 96 00:04:34 00:09:25 0.486
GB112_dither OH 96 00:04:34 00:09:19 0.491
GB79_dither OH 96 00:04:34 00:09:44 0.470
GB60_dither OH 48 00:02:17 00:04:41 0.488
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB74_dither OH 24 00:01:08 00:02:21 0.484
GB95_dither OH 48 00:02:17 00:04:41 0.488
GB113_dither OH 48 00:02:17 00:04:38 0.493
GCsky 72 00:03:25 00:08:38 0.397
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB80_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:30 0.456
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:35 0.498
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 00:04:38 0.493
GB75_dither OJ 48 00:02:17 00:04:43 0.484
GB74_dither OJ 48 00:02:17 00:04:32 0.503
GB91_dither OJ 48 00:02:17 00:04:32 0.503
GB92_dither OJ 48 00:02:17 00:04:38 0.493
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 00:04:32 0.503
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:04:35 0.498
GB114_dither OJ 48 00:02:17 00:04:32 0.503
GB113_dither OJ 48 00:02:17 00:04:32 0.503
GB112_dither OJ 48 00:02:17 00:04:38 0.493
GB111_dither OJ 48 00:02:17 00:07:09 0.319
field8693_test 4 00:00:11 00:01:44 0.110
field8693 40 00:01:54 00:03:47 0.503
field8694 40 00:01:54 00:03:50 0.497
field8695 40 00:01:54 00:03:50 0.497
field8696 40 00:01:54 00:03:55 0.485
field8697 40 00:01:54 00:03:52 0.491
field8698 40 00:01:54 00:03:50 0.497
field8699 40 00:01:54 00:03:47 0.503
field8700 40 00:01:54 00:03:47 0.503
field8701 40 00:01:54 00:03:47 0.503
field8702 40 00:01:54 00:03:47 0.503
field8703 40 00:01:54 00:03:50 0.497
field8704 40 00:01:54 00:03:50 0.497
field8705 40 00:01:54 00:03:50 0.497
field8706 40 00:01:54 00:03:50 0.497
field8707 40 00:01:54 00:03:47 0.503
field8708 40 00:01:54 00:03:47 0.503
field8709 40 00:01:54 00:03:47 0.503
field8710 40 00:01:54 00:03:47 0.503
field8711 40 00:01:54 00:03:47 0.503
field8712 40 00:01:54 00:03:50 0.497
field8713 40 00:01:54 00:03:52 0.491
field8714 40 00:01:54 00:03:52 0.491
field8715 40 00:01:54 00:03:50 0.497
field8716 40 00:01:54 00:03:50 0.497
field8717 40 00:01:54 00:03:47 0.503
field8718 40 00:01:54 00:06:55 0.276
FLAT_test OJ 4 00:00:11 00:07:14 0.026
FLAT OJ 160 00:07:37 00:13:49 0.552










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 06:38:47 12:21:17 0.538

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 1861:20:27 951:17:33 910:02:53 254:48:48 218:24:41 218:24:41 218:24:41 155:37:34
Observed 938:27:28
(50.42%)		 556:15:30
(58.47%)		 382:11:58
(42.00%)		 63:27:25
(24.90%)		 90:38:40
(41.50%)		 172:48:22
(79.12%)		 55:17:29
(25.32%)		 155:37:34
(N/A)
Remaining 922:52:58
(49.58%)		 395:02:02
(41.53%)		 527:50:55
(58.00%)		 191:21:23
(75.10%)		 127:46:00
(58.50%)		 45:36:19
(20.88%)		 163:07:11
(74.68%)		 00:00:00
(N/A)











Camera status (2025/07/01)



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