PRIME Observation Log 2025/05/31

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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: 2025/05/31
Local observer: Ryusei
Remote observer:
Weather: clear
Comment:
Detector Temperature: 113.99999 +- 0.00118 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:03:42
Morning 07:05:36
Science Observation
(Sun altitude < -10°)
Start 18:26:34
End 06:42:42
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:00:13
End 06:42:42


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:12:05 12:16:08 0.994
GB Time 10:41:32 10:42:29 0.999
Non-GB Time 01:30:32 01:33:39 0.967


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 6264 04:58:35 10:41:32 0.465
CALIB 184 00:08:46 00:27:55 0.314
SAAO 177 00:08:26 00:22:38 0.373
OU 177 00:08:26 00:22:38 0.373
NASA 177 00:08:26 00:22:38 0.373
ABC 177 00:08:26 00:22:38 0.373


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 708 00:33:44 01:30:32 0.373
Bulge 6048 04:48:17 10:11:31 0.471
SKY 216 00:10:17 00:30:01 0.343
TWILIGHT 184 00:08:46 00:27:55 0.314


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field16194_test 28 00:01:20 00:15:18 0.087
field16194 40 00:01:54 00:03:50 0.497
field16195 40 00:01:54 00:03:52 0.491
field16196 40 00:01:54 00:03:50 0.497
field16197 40 00:01:54 00:03:50 0.497
field16198 40 00:01:54 00:03:55 0.485
field16199 40 00:01:54 00:03:52 0.491
field16200 40 00:01:54 00:03:50 0.497
field16201 40 00:01:54 00:03:50 0.497
field16202 40 00:01:54 00:03:47 0.503
field16203 40 00:01:54 00:03:47 0.503
field16204 40 00:01:54 00:03:47 0.503
field16205 40 00:01:54 00:04:18 0.443
field16206 40 00:01:54 00:03:50 0.497
field16207 40 00:01:54 00:03:50 0.497
field16208 40 00:01:54 00:03:52 0.491
field16209 40 00:01:54 00:03:52 0.491
field16210 40 00:01:54 00:13:16 0.144
GB63_test OJ 32 00:01:31 00:12:39 0.121
GB63_dither OJ 96 00:04:34 00:09:11 0.498
GB80_dither OJ 96 00:04:34 00:09:22 0.488
GB97_dither OJ 96 00:04:34 00:09:19 0.491
GB114_dither OJ 96 00:04:34 00:09:19 0.491
GB113_dither OJ 96 00:04:34 00:09:16 0.493
GB96_dither OJ 96 00:04:34 00:09:19 0.491
GB79_dither OJ 96 00:04:34 00:09:16 0.493
GB62_dither OJ 96 00:04:34 00:09:19 0.491
GB61_dither OJ 96 00:04:34 00:09:11 0.498
GB60_dither OJ 96 00:04:34 00:09:08 0.501
GB59_dither OJ 96 00:04:34 00:09:13 0.496
GB58_dither OJ 96 00:04:34 00:09:05 0.503
GB57_dither OJ 96 00:04:34 00:10:04 0.454
GCsky 216 00:10:17 00:30:01 0.343
GB63_dither OH 48 00:02:17 00:04:35 0.498
GB62_dither OH 48 00:02:17 00:04:43 0.484
GB61_dither OH 48 00:02:17 00:04:35 0.498
GB60_dither OH 48 00:02:17 00:04:38 0.493
GB59_dither OH 48 00:02:17 00:04:41 0.488
GB58_dither OH 48 00:02:17 00:04:38 0.493
GB57_dither OH 48 00:02:17 00:04:38 0.493
GB74_dither OH 48 00:02:17 00:04:35 0.498
GB75_dither OH 72 00:03:25 00:07:05 0.484
GB76_dither OH 72 00:03:25 00:07:05 0.484
GB77_dither OH 72 00:03:25 00:06:57 0.493
GB78_dither OH 72 00:03:25 00:07:03 0.487
GB79_dither OH 72 00:03:25 00:07:03 0.487
GB80_dither OH 48 00:02:17 00:04:41 0.488
GB97_dither OH 48 00:02:17 00:04:41 0.488
GB96_dither OH 72 00:03:25 00:07:03 0.487
GB95_dither OH 72 00:03:25 00:07:00 0.490
GB94_dither OH 72 00:03:25 00:07:08 0.480
GB93_dither OH 72 00:03:25 00:07:00 0.490
GB92_dither OH 72 00:03:25 00:08:57 0.383
GB91_dither OH 48 00:02:17 00:04:41 0.488
GB108_dither OH 48 00:02:17 00:04:41 0.488
GB109_dither OH 48 00:02:17 00:04:38 0.493
GB110_dither OH 48 00:02:17 00:04:41 0.488
GB111_dither OH 48 00:02:17 00:04:41 0.488
GB112_dither OH 48 00:02:17 00:04:41 0.488
GB113_dither OH 48 00:02:17 00:04:41 0.488
GB114_dither OH 48 00:02:17 00:04:38 0.493
GB131_dither OH 48 00:02:17 00:04:43 0.484
GB130_dither OH 48 00:02:17 00:04:41 0.488
GB129_dither OH 48 00:02:17 00:04:41 0.488
GB128_dither OH 48 00:02:17 00:04:41 0.488
GB127_dither OH 48 00:02:17 00:04:41 0.488
GB126_dither OH 48 00:02:17 00:04:41 0.488
GB125_dither OH 48 00:02:17 00:05:23 0.425
GB74_dither OJ 48 00:02:17 00:04:32 0.503
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB76_dither OJ 48 00:02:17 00:04:46 0.479
GB77_dither OJ 44 00:02:05 00:04:38 0.452
GB78_dither OJ 48 00:02:17 00:04:43 0.484
GB95_dither OJ 48 00:02:17 00:04:38 0.493
GB94_dither OJ 48 00:02:17 00:04:38 0.493
GB93_dither OJ 48 00:02:17 00:04:43 0.484
GB92_dither OJ 48 00:02:17 00:04:41 0.488
GB91_dither OJ 48 00:02:17 00:04:46 0.479
GB108_dither OJ 48 00:02:17 00:04:38 0.493
GB109_dither OJ 96 00:04:34 00:09:36 0.476
GB110_dither OJ 96 00:04:34 00:14:30 0.315
GB111_dither OJ 48 00:02:17 00:04:52 0.470
GB128_dither OJ 64 00:03:03 00:07:08 0.428
GB126_dither OJ 48 00:02:17 00:04:38 0.493
GB125_dither OJ 48 00:02:17 00:06:08 0.373
GB112_dither OJ 48 00:02:17 00:04:41 0.488
GB131_dither OJ 48 00:02:17 00:04:43 0.484
GB130_dither OJ 48 00:02:17 00:04:38 0.493
GB129_dither OJ 48 00:02:17 00:04:41 0.488
GB127_dither OJ 48 00:02:17 00:05:11 0.440
GB63_dither OY 48 00:02:17 00:04:38 0.493
GB62_dither OY 48 00:02:17 00:04:35 0.498
GB61_dither OY 48 00:02:17 00:04:38 0.493
GB60_dither OY 48 00:02:17 00:04:38 0.493
GB59_dither OY 48 00:02:17 00:04:41 0.488
GB58_dither OY 48 00:02:17 00:04:38 0.493
GB57_dither OY 48 00:02:17 00:04:38 0.493
GB74_dither OY 48 00:02:17 00:04:41 0.488
GB75_dither OY 48 00:02:17 00:04:41 0.488
GB76_dither OY 48 00:02:17 00:04:35 0.498
GB77_dither OY 48 00:02:17 00:04:35 0.498
GB78_dither OY 48 00:02:17 00:04:38 0.493
GB79_dither OY 48 00:02:17 00:04:41 0.488
GB80_dither OY 48 00:02:17 00:04:38 0.493
GB97_dither OY 48 00:02:17 00:04:38 0.493
GB96_dither OY 48 00:02:17 00:04:43 0.484
GB95_dither OY 48 00:02:17 00:04:38 0.493
GB94_dither OY 48 00:02:17 00:04:41 0.488
GB93_dither OY 48 00:02:17 00:04:38 0.493
GB92_dither OY 48 00:02:17 00:04:41 0.488
GB91_dither OY 48 00:02:17 00:04:44 0.483
GB108_dither OY 48 00:02:17 00:04:43 0.484
GB109_dither OY 48 00:02:17 00:04:41 0.488
GB110_dither OY 48 00:02:17 00:04:41 0.488
GB111_dither OY 48 00:02:17 00:04:35 0.498
GB112_dither OY 48 00:02:17 00:04:46 0.479
GB113_dither OY 48 00:02:17 00:04:38 0.493
GB114_dither OY 48 00:02:17 00:04:41 0.488
GB131_dither OY 48 00:02:17 00:04:41 0.488
GB130_dither OY 48 00:02:17 00:04:46 0.479
GB129_dither OY 48 00:02:17 00:04:43 0.484
GB128_dither OY 48 00:02:17 00:04:41 0.488
GB127_dither OY 48 00:02:17 00:04:32 0.503
GB126_dither OY 48 00:02:17 00:04:41 0.488
GB125_dither OY 48 00:02:17 00:04:55 0.465
GB109_test OJ 4 00:00:11 00:02:06 0.090
FLAT_test NJ 4 00:00:11 00:12:25 0.015
FLAT NJ 180 00:08:34 00:15:29 0.554










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

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 1836:17:44 942:21:19 893:56:24 250:18:11 214:32:44 214:32:44 214:32:44 145:51:31
Observed 721:49:01
(39.31%)		 372:14:52
(39.50%)		 349:34:09
(39.10%)		 55:20:03
(22.11%)		 83:14:53
(38.80%)		 163:05:29
(76.02%)		 47:53:42
(22.32%)		 145:51:31
(N/A)
Remaining 1114:28:42
(60.69%)		 570:06:27
(60.50%)		 544:22:15
(60.90%)		 194:58:08
(77.89%)		 131:17:50
(61.20%)		 51:27:14
(23.98%)		 166:39:01
(77.68%)		 00:00:00
(N/A)











Camera status (2025/05/31)



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