PRIME Observation Log 2025/03/23

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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: 2025/03/23
Local observer: Ryo Ogawa,
Remote observer: Ken Bando, Yui Okumoto,
Weather: clear
Comment:
Detector Temperature: 113.99986 +- 0.00139 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:05:51
Morning 06:20:46
Science Observation
(Sun altitude < -10°)
Start 19:27:11
End 05:59:25
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 00:31:29
End 05:59:25


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:52:23 10:32:13 0.652
GB Time 05:01:06 05:27:55 0.918
Non-GB Time 01:51:16 05:04:18 0.366


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 544 00:25:55 00:47:33 0.545
GB 2548 02:01:27 05:01:06 0.403
SAAO 259 00:12:20 00:27:49 0.444
OU 259 00:12:20 00:27:49 0.444
NASA 259 00:12:20 00:27:49 0.444
ABC 259 00:12:20 00:27:49 0.444


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
calibration 4 00:00:11 00:00:41 0.276
all_sky_grid 1036 00:49:22 01:51:16 0.444
Bulge 2484 01:58:24 04:52:12 0.405
SKY 64 00:03:03 00:08:54 0.342
TWILIGHT 540 00:25:44 00:46:52 0.549


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
LSS_J 4 00:00:11 00:00:41 0.276
field4140_test 36 00:01:42 00:12:50 0.134
field4140 40 00:01:54 00:03:50 0.497
field4141 40 00:01:54 00:03:52 0.491
field4142 40 00:01:54 00:03:50 0.497
field4143 40 00:01:54 00:03:52 0.491
field4352 40 00:01:54 00:03:47 0.503
field4353 40 00:01:54 00:03:47 0.503
field4354 40 00:01:54 00:03:50 0.497
field4355 40 00:01:54 00:03:50 0.497
field4356 40 00:01:54 00:03:50 0.497
field4357 40 00:01:54 00:03:50 0.497
field4358 40 00:01:54 00:03:52 0.491
field4572 40 00:01:54 00:03:47 0.503
field4573 40 00:01:54 00:03:47 0.503
field4574 40 00:01:54 00:03:47 0.503
field4575 40 00:01:54 00:03:47 0.503
field4576 40 00:01:54 00:03:47 0.503
field4577 40 00:01:54 00:03:55 0.485
field5024 40 00:01:54 00:03:50 0.497
field5025 40 00:01:54 00:03:50 0.497
field5026 40 00:01:54 00:03:47 0.503
field5027 40 00:01:54 00:03:47 0.503
field5028 40 00:01:54 00:03:47 0.503
field5029 40 00:01:54 00:03:50 0.497
field5256 40 00:01:54 00:03:47 0.503
field5257 40 00:01:54 00:06:41 0.285
GB_test OH 8 00:00:22 00:04:01 0.095
GB63_test OH 20 00:00:57 00:07:21 0.130
GB63_dither OH 72 00:03:25 00:06:57 0.493
GB62_dither OH 72 00:03:25 00:07:00 0.490
GB61_dither OH 72 00:03:25 00:07:03 0.487
GB60_dither OH 72 00:03:25 00:07:00 0.490
GB59_dither OH 72 00:03:25 00:07:03 0.487
GB58_dither OH 96 00:04:34 00:23:53 0.191
GB57_dither OH 72 00:03:25 00:06:57 0.493
GB74_dither OH 72 00:03:25 00:17:50 0.192
GB75_dither OH 72 00:03:25 00:06:57 0.493
GB76_dither OH 72 00:03:25 00:07:03 0.487
GB77_dither OH 72 00:03:25 00:06:54 0.497
GB78_dither OH 72 00:03:25 00:07:05 0.484
GB79_dither OH 72 00:03:25 00:06:54 0.497
GB80_dither OH 72 00:03:25 00:07:03 0.487
GB97_dither OH 72 00:03:25 00:07:03 0.487
GB96_dither OH 72 00:03:25 00:07:03 0.487
GB95_dither OH 72 00:03:25 00:07:03 0.487
GB94_dither OH 72 00:03:25 00:06:57 0.493
GB93_dither OH 72 00:03:25 00:07:05 0.484
GB92_dither OH 72 00:03:25 00:07:00 0.490
GB91_dither OH 72 00:03:25 00:06:57 0.493
GB108_dither OH 72 00:03:25 00:06:57 0.493
GB109_dither OH 72 00:03:25 00:07:05 0.484
GB110_dither OH 72 00:03:25 00:06:54 0.497
GB111_dither OH 72 00:03:25 00:06:57 0.493
GB112_dither OH 72 00:03:25 00:07:00 0.490
GB113_dither OH 72 00:03:25 00:06:57 0.493
GB114_dither OH 72 00:03:25 00:06:57 0.493
GB131_dither OH 72 00:03:25 00:07:00 0.490
GB130_dither OH 72 00:03:25 00:10:44 0.319
GB129_dither OH 48 00:02:17 00:04:41 0.488
GB128_dither OH 48 00:02:17 00:04:43 0.484
GB127_dither OH 48 00:02:17 00:04:38 0.493
GB126_dither OH 48 00:02:17 00:04:41 0.488
GB125_dither OH 72 00:03:25 00:07:33 0.454
GCsky 64 00:03:03 00:08:54 0.342
GB63_dither_test OH 8 00:00:22 00:12:59 0.029
FLAT_test OH 4 00:00:11 00:01:13 0.156
FLAT OH 536 00:25:32 00:45:38 0.560










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 93:32:15 233:37:41 0.400

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 1763:36:21 910:26:39 853:09:41 238:53:06 204:45:31 204:45:31 204:45:31 101:13:06
Observed 251:02:27
(14.23%)		 59:34:09
(6.54%)		 191:28:17
(22.44%)		 19:09:44
(8.02%)		 49:01:33
(23.94%)		 107:59:48
(52.74%)		 15:17:10
(7.47%)		 101:13:06
(N/A)
Remaining 1512:33:53
(85.77%)		 850:52:29
(93.46%)		 661:41:23
(77.56%)		 219:43:22
(91.98%)		 155:43:57
(76.06%)		 96:45:42
(47.26%)		 189:28:21
(92.53%)		 00:00:00
(N/A)











Camera status (2025/03/23)



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