PRIME Observation Log 2025/08/07

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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: 2025/08/07
Local observer: Togo
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 113.99996 +- 0.00211 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:27:19
Morning 06:57:13
Science Observation
(Sun altitude < -10°)
Start 18:49:19
End 06:35:15
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:49:19
End 03:02:09


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:57:56 11:45:55 0.677
GB Time 07:57:56 08:12:50 0.970
Non-GB Time 00:00:00 03:33:05 0.000


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 120 00:05:43 00:13:22 0.428
GB 4820 03:49:45 07:57:56 0.481


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 120 00:05:43 00:13:22 0.428
Bulge 4724 03:45:10 07:47:18 0.482
SKY 96 00:04:34 00:10:37 0.430


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OJ 120 00:05:43 00:13:22 0.428
GB74_test OJ 8 00:00:22 00:01:38 0.232
GB74_dither OJ 48 00:02:17 00:04:35 0.498
GB75_dither OJ 48 00:02:17 00:04:32 0.503
GB76_dither OJ 48 00:02:17 00:04:35 0.498
GB77_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:32 0.503
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB80_dither OJ 48 00:02:17 00:04:32 0.503
GB97_dither OJ 48 00:02:17 00:04:35 0.498
GB96_dither OJ 48 00:02:17 00:04:38 0.493
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB94_dither OJ 48 00:02:17 00:04:32 0.503
GB93_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:35 0.498
GB91_dither OJ 48 00:02:17 00:04:38 0.493
GB108_dither OJ 48 00:02:17 00:04:38 0.493
GB109_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:38 0.493
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB112_dither OJ 48 00:02:17 00:04:38 0.493
GB113_dither OJ 48 00:02:17 00:04:41 0.488
GB114_dither OJ 48 00:02:17 00:05:14 0.436
GCsky 96 00:04:34 00:10:37 0.430
GB74_test OH 4 00:00:11 00:00:31 0.368
GB76_test OH 20 00:00:57 00:04:22 0.218
GB76_dither OH 360 00:17:09 00:35:12 0.487
GB77_dither OH 360 00:17:09 00:35:18 0.486
GB78_dither OH 360 00:17:09 00:35:09 0.488
GB94_dither OH 360 00:17:09 00:35:06 0.489
GB111_dither OH 360 00:17:09 00:35:20 0.485
GB110_dither OH 360 00:17:09 00:36:03 0.476
GB109_dither OH 192 00:09:09 00:18:44 0.488
GB75_dither OH 180 00:08:34 00:18:00 0.476
GB93_dither OH 96 00:04:34 00:09:16 0.493
GB92_dither OH 96 00:04:34 00:09:36 0.476
GB112_dither OH 168 00:08:00 00:16:25 0.488
GB71_dither OH 24 00:01:08 00:02:19 0.493
GB72_dither OH 24 00:01:08 00:02:21 0.483
GB73_dither OH 24 00:01:08 00:02:21 0.484
GB90_dither OH 24 00:01:08 00:02:21 0.484
GB89_dither OH 24 00:01:08 00:02:19 0.493
GB88_dither OH 24 00:01:08 00:02:24 0.474
GB105_dither OH 24 00:01:08 00:02:21 0.484
GB106_dither OH 24 00:01:08 00:02:21 0.484
GB107_dither OH 24 00:01:08 00:03:12 0.357
GB79_dither OH 168 00:08:00 00:17:21 0.461
GB60_dither OH 96 00:04:34 00:09:27 0.484
GB95_dither OH 72 00:03:25 00:07:00 0.490
GB113_dither OH 72 00:03:25 00:07:00 0.490
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
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB80_dither OH 24 00:01:08 00:02:21 0.484










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 49:31:08 82:50:30 0.598

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 1904:58:44 987:19:43 917:39:01 256:56:31 220:14:10 220:14:10 220:14:10 168:57:04
Observed 1206:03:00
(63.31%)		 769:08:31
(77.90%)		 436:54:28
(47.61%)		 83:42:55
(32.58%)		 101:35:13
(46.13%)		 185:22:17
(84.17%)		 66:14:02
(30.07%)		 168:57:04
(N/A)
Remaining 698:55:44
(36.69%)		 218:11:11
(22.10%)		 480:44:33
(52.39%)		 173:13:36
(67.42%)		 118:38:56
(53.87%)		 34:51:52
(15.83%)		 154:00:07
(69.93%)		 00:00:00
(N/A)











Camera status (2025/08/07)



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