PRIME Observation Log 2025/05/13

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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: 2025/05/13
Local observer: Ryusei
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00002 +- 0.00099 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:11:41
Morning 06:54:49
Science Observation
(Sun altitude < -10°)
Start 18:33:58
End 06:32:29
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 21:11:00
End 06:32:29


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:12:50 11:58:30 0.769
GB Time 09:09:27 09:21:29 0.979
Non-GB Time 00:03:23 02:37:01 0.022


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB 5228 04:09:12 09:09:27 0.454
SKY 24 00:01:08 00:03:23 0.337


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 5084 04:02:20 08:51:57 0.456
GB 24 00:01:08 00:03:23 0.337
SKY 144 00:06:51 00:17:29 0.392


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB63_test OH 16 00:00:45 00:09:13 0.083
GB63_test OJ 24 00:01:08 00:07:05 0.161
GB63_ditger OJ 24 00:01:08 00:02:19 0.493
GB62_dither OJ 24 00:01:08 00:08:40 0.132
GB61_test OJ 4 00:00:11 00:00:45 0.253
GB61_dither OJ 24 00:01:08 00:02:16 0.503
GB60_dither OJ 24 00:01:08 00:02:19 0.493
GB59_dither OJ 24 00:01:08 00:02:16 0.503
GB58_dither OJ 24 00:01:08 00:02:16 0.503
GB57_dither OJ 24 00:01:08 00:02:19 0.493
GB74_dither OJ 24 00:01:08 00:02:19 0.493
GB75_dither OJ 24 00:01:08 00:02:19 0.493
GB76_dither OJ 24 00:01:08 00:02:19 0.493
GB77_dither OJ 24 00:01:08 00:02:21 0.484
GB78_dither OJ 24 00:01:08 00:02:19 0.493
GB79_dither OJ 24 00:01:08 00:02:19 0.493
GB80_dither OJ 24 00:01:08 00:02:19 0.493
GB97_dither OJ 24 00:01:08 00:02:16 0.503
GB96_dither OJ 24 00:01:08 00:02:16 0.503
GB95_dither OJ 24 00:01:08 00:02:19 0.493
GB94_dither OJ 24 00:01:08 00:02:16 0.503
GB93_dither OJ 24 00:01:08 00:02:19 0.493
GB92_dither OJ 24 00:01:08 00:02:19 0.493
GB91_dither OJ 24 00:01:08 00:02:21 0.484
GB108_dither OJ 24 00:01:08 00:02:21 0.484
GB109_dither OJ 24 00:01:08 00:02:19 0.493
GB110_dither OJ 24 00:01:08 00:02:19 0.493
GB111_dither OJ 24 00:01:08 00:02:19 0.493
GB112_dither OJ 24 00:01:08 00:02:21 0.483
GB113_dither OJ 24 00:01:08 00:02:19 0.493
GB114_dither OJ 24 00:01:08 00:02:19 0.493
GB131_dither OJ 24 00:01:08 00:02:16 0.503
GB130_dither OJ 24 00:01:08 00:02:19 0.493
GB129_dither OJ 24 00:01:08 00:02:16 0.503
GB128_dither OJ 24 00:01:08 00:02:19 0.493
GB127_dither OJ 24 00:01:08 00:02:21 0.484
GB126_dither OJ 24 00:01:08 00:02:19 0.493
GB125_dither OJ 24 00:01:08 00:02:27 0.465
GCsky 168 00:08:00 00:20:53 0.383
GB63_dither OH 120 00:05:43 00:11:44 0.487
GB62_dither OH 120 00:05:43 00:11:47 0.485
GB61_dither OH 120 00:05:43 00:11:38 0.491
GB60_dither OH 120 00:05:43 00:11:49 0.484
GB59_dither OH 120 00:05:43 00:11:32 0.495
GB58_dither OH 120 00:05:43 00:11:44 0.487
GB57_dither OH 120 00:05:43 00:12:03 0.474
GB74_dither OH 120 00:05:43 00:12:45 0.448
GB75_dither OH 120 00:05:43 00:11:52 0.482
GB76_dither OH 120 00:05:43 00:11:49 0.483
GB77_dither OH 120 00:05:43 00:11:55 0.480
GB78_dither OH 120 00:05:43 00:11:49 0.484
GB79_dither OH 120 00:05:43 00:11:52 0.482
GB80_dither OH 120 00:05:43 00:12:40 0.451
GB97_dither OH 120 00:05:43 00:11:44 0.487
GB96_dither OH 120 00:05:43 00:11:44 0.487
GB95_dither OH 120 00:05:43 00:11:44 0.487
GB94_dither OH 120 00:05:43 00:11:41 0.489
GB93_dither OH 120 00:05:43 00:11:44 0.487
GB92_dither OH 120 00:05:43 00:11:41 0.489
GB91_dither OH 120 00:05:43 00:11:44 0.487
GB108_dither OH 120 00:05:43 00:11:47 0.485
GB109_dither OH 120 00:05:43 00:11:41 0.489
GB110_dither OH 120 00:05:43 00:11:41 0.489
GB111_dither OH 120 00:05:43 00:11:49 0.484
GB112_dither OH 120 00:05:43 00:11:44 0.487
GB113_dither OH 120 00:05:43 00:11:46 0.485
GB114_dither OH 120 00:05:43 00:12:17 0.465
GB131_dither OH 120 00:05:43 00:11:44 0.487
GB130_dither OH 120 00:05:43 00:11:46 0.485
GB129_dither OH 120 00:05:43 00:15:28 0.370
GB128_dither OH 120 00:05:43 00:11:41 0.489
GB127_dither OH 120 00:05:43 00:11:44 0.487
GB126_dither OH 120 00:05:43 00:11:44 0.487
GB125_dither OH 120 00:05:43 00:21:13 0.270










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 107:16:36 153:57:13 0.697

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 1808:29:51 923:23:40 885:06:10 247:49:43 212:25:28 212:25:28 212:25:28 135:32:41
Observed 584:43:49
(32.33%)		 262:37:40
(28.44%)		 322:06:09
(36.39%)		 47:27:45
(19.15%)		 76:16:59
(35.91%)		 156:46:35
(73.80%)		 41:34:48
(19.57%)		 135:32:41
(N/A)
Remaining 1223:46:01
(67.67%)		 660:45:59
(71.56%)		 563:00:01
(63.61%)		 200:21:58
(80.85%)		 136:08:29
(64.09%)		 55:38:53
(26.20%)		 170:50:40
(80.43%)		 00:00:00
(N/A)











Camera status (2025/05/13)



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