PRIME Observation Log 2025/06/15

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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: 2025/06/15
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 113.99991 +- 0.00568 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:02:50
Morning 07:12:01
Science Observation
(Sun altitude < -10°)
Start 18:25:57
End 06:48:53
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:01:15
End 06:30:32


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:18:32 12:22:55 0.913
GB Time 11:00:47 11:29:17 0.959
Non-GB Time 00:17:45 00:53:38 0.331


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 6408 05:05:26 11:00:47 0.462
SAAO 13 00:00:37 00:04:26 0.140
OU 13 00:00:37 00:04:26 0.140
NASA 13 00:00:37 00:04:26 0.140
ABC 13 00:00:37 00:04:26 0.140


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 6208 04:55:54 10:34:53 0.466
SKY 200 00:09:32 00:25:53 0.368
all_sky_grid 52 00:02:28 00:17:45 0.140


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB80_test OH 4 00:00:11 00:02:09 0.089
GB80_test OJ 36 00:01:42 00:13:07 0.131
GB80_dither OJ 96 00:04:34 00:09:13 0.496
GB97_dither OJ 96 00:04:34 00:09:13 0.496
GB114_dither OJ 48 00:02:17 00:04:32 0.503
GB113_dither OJ 48 00:02:17 00:04:38 0.493
GB96_dither OJ 96 00:04:34 00:09:22 0.488
GB79_dither OJ 96 00:04:34 00:09:16 0.493
GB78_dither OJ 96 00:04:34 00:09:16 0.493
GB95_dither OJ 96 00:04:34 00:09:19 0.491
GB112_dither OJ 48 00:02:17 00:04:35 0.498
GB111_dither OJ 48 00:02:17 00:04:32 0.503
GB94_dither OJ 96 00:04:34 00:09:16 0.493
GB77_dither OJ 96 00:04:34 00:09:19 0.491
GB76_dither OJ 96 00:04:34 00:09:13 0.496
GB93_dither OJ 96 00:04:34 00:09:08 0.501
GB110_dither OJ 48 00:02:17 00:04:43 0.484
GCsky 192 00:09:09 00:23:16 0.393
GCsky_test 8 00:00:22 00:02:37 0.145
GB76_dither OH 480 00:22:52 00:47:05 0.486
GB77_dither OH 480 00:22:52 00:47:08 0.485
GB78_dither OH 480 00:22:52 00:47:07 0.485
GB94_dither OH 480 00:22:52 00:46:54 0.488
GB111_dither OH 480 00:22:52 00:47:19 0.484
GB110_dither OH 480 00:22:52 00:48:15 0.474
GB109_dither OH 240 00:11:26 00:23:28 0.487
GB92_dither OH 120 00:05:43 00:11:38 0.491
GB93_dither OH 120 00:05:43 00:12:01 0.476
GB75_dither OH 240 00:11:26 00:23:39 0.484
GB112_dither OH 216 00:10:17 00:21:12 0.486
GB79_dither OH 216 00:10:17 00:22:58 0.448
GB60_dither OH 120 00:05:43 00:11:46 0.485
GB95_dither OH 120 00:05:43 00:11:55 0.480
GB113_dither OH 96 00:04:34 00:09:27 0.484
GB80_dither OH 24 00:01:08 00:02:24 0.474
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:27 0.465
GB96_dither OH 24 00:01:08 00:02:55 0.391
GB74_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:16 0.503
GB108_dither OH 24 00:01:08 00:02:21 0.484
GB107_dither OH 24 00:01:08 00:02:27 0.465
GB90_dither OH 24 00:01:08 00:02:24 0.474
GB73_dither OH 24 00:01:08 00:02:21 0.484
GB72_dither OH 24 00:01:08 00:02:27 0.465
GB89_dither OH 24 00:01:08 00:02:24 0.474
GB106_dither OH 24 00:01:08 00:04:16 0.267
GB74_dither OJ 48 00:02:17 00:04:35 0.498
GB75_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 00:04:41 0.488
GB108_dither OJ 48 00:02:17 00:04:43 0.484
GB109_dither OJ 48 00:02:17 00:15:11 0.151
field15399_test 52 00:02:28 00:17:45 0.140










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 127:25:09 185:06:12 0.688

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 1871:09:47 963:57:53 907:11:53 254:00:55 217:43:39 217:43:39 217:43:39 150:53:06
Observed 849:14:10
(45.39%)		 478:08:35
(49.60%)		 371:05:34
(40.91%)		 60:40:49
(23.89%)		 87:52:05
(40.36%)		 170:01:46
(78.09%)		 52:30:53
(24.12%)		 150:53:06
(N/A)
Remaining 1021:55:36
(54.61%)		 485:49:17
(50.40%)		 536:06:18
(59.09%)		 193:20:06
(76.11%)		 129:51:34
(59.64%)		 47:41:52
(21.91%)		 165:12:45
(75.88%)		 00:00:00
(N/A)











Camera status (2025/06/15)



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