PRIME Observation Log 2025/07/09

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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: 2025/07/09
Local observer: Takuto
Remote observer: None
Weather: Clear
Comment:
Detector Temperature: 114.00003 +- 0.00145 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:10:34
Morning 07:13:28
Science Observation
(Sun altitude < -10°)
Start 18:33:29
End 06:50:34
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:33:29
End 04:56:11


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:38:07 12:17:04 1.029
GB Time 10:08:43 10:22:41 0.978
Non-GB Time 02:29:24 01:54:23 1.306


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 360 00:17:09 00:33:08 0.518
GB 5984 04:45:14 10:08:43 0.469
SAAO 363 00:17:18 00:37:21 0.463
OU 363 00:17:18 00:37:21 0.463
NASA 363 00:17:18 00:37:21 0.463
ABC 363 00:17:18 00:37:21 0.463


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 360 00:17:09 00:33:08 0.518
Bulge 5840 04:38:22 09:47:11 0.474
SKY 144 00:06:51 00:21:31 0.319
all_sky_grid 1452 01:09:12 02:29:24 0.463


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OY 360 00:17:09 00:33:08 0.518
GB80_dither_test OJ 20 00:00:57 00:05:37 0.169
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB77_dither OJ 48 00:02:17 00:04:38 0.493
GB76_dither OJ 48 00:02:17 00:04:32 0.503
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB74_dither OJ 48 00:02:17 00:04:38 0.493
GB91_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:35 0.498
GB93_dither OJ 48 00:02:17 00:04:32 0.503
GB94_dither OJ 48 00:02:17 00:04:32 0.503
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:04:35 0.498
GB114_dither OJ 48 00:02:17 00:04:32 0.503
GB113_dither OJ 48 00:02:17 00:04:38 0.493
GB112_dither OJ 48 00:02:17 00:04:32 0.503
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:38 0.493
GB109_dither OJ 48 00:02:17 00:04:35 0.498
GB108_dither OJ 48 00:02:17 00:04:49 0.474
GCsky 144 00:06:51 00:21:31 0.319
GB76_dither_test OH 8 00:00:22 00:02:23 0.159
GB76_dither OH 456 00:21:44 00:44:40 0.487
GB77_dither OH 456 00:21:44 00:44:48 0.485
GB78_dither OH 456 00:21:44 00:45:00 0.483
GB94_dither OH 456 00:21:44 00:44:46 0.486
GB111_dither OH 456 00:21:44 00:44:48 0.485
GB110_dither OH 460 00:21:55 00:46:04 0.476
GB109_dither OH 120 00:05:43 00:15:00 0.381
GB92_dither OH 120 00:05:43 00:11:44 0.487
GB93_dither OH 120 00:05:43 00:11:55 0.480
GB75_dither OH 216 00:10:17 00:21:06 0.488
GB112_dither OH 216 00:10:17 00:21:09 0.487
GB79_dither OH 216 00:10:17 00:21:51 0.471
GB60_dither OH 120 00:05:43 00:11:44 0.487
GB91_dither OH 24 00:01:08 00:02:21 0.484
GB74_dither OH 24 00:01:08 00:02:21 0.483
GB95_dither OH 96 00:04:34 00:09:25 0.486
GB113_dither OH 96 00:04:34 00:09:27 0.484
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB80_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:49 0.404
GB90_dither OH 24 00:01:08 00:02:21 0.484
GB73_dither OH 24 00:01:08 00:02:24 0.474
GB72_dither OH 24 00:01:08 00:02:24 0.474
GB89_dither OH 24 00:01:08 00:02:21 0.484
GB88_dither OH 24 00:01:08 00:02:21 0.484
GB71_dither OH 24 00:01:08 00:03:43 0.307
GB83_dither OH 24 00:01:08 00:02:21 0.484
GB100_dither OH 24 00:01:08 00:02:21 0.484
GB117_dither OH 24 00:01:08 00:02:21 0.484
GB116_dither OH 24 00:01:08 00:02:21 0.484
GB99_dither OH 24 00:01:08 00:02:21 0.484
GB82_dither OH 24 00:01:08 00:02:19 0.493
GB81_dither OH 24 00:01:08 00:02:19 0.493
GB98_dither OH 24 00:01:08 00:02:21 0.484
GB115_dither OH 24 00:01:08 00:02:30 0.456
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB105_dither OH 24 00:01:08 00:02:19 0.493
GB106_dither OH 24 00:01:08 00:02:21 0.484
GB107_dither OH 24 00:01:08 00:02:19 0.493
GB99_dither OJ 48 00:02:17 00:04:57 0.461
GB98_dither OJ 48 00:02:17 00:04:38 0.493
GB115_dither OJ 48 00:02:17 00:08:30 0.269
field9264_test 12 00:00:34 00:04:13 0.136
field9264 40 00:01:54 00:03:50 0.497
field9265 40 00:01:54 00:03:50 0.497
field9266 40 00:01:54 00:03:47 0.503
field9267 40 00:01:54 00:03:52 0.491
field9268 40 00:01:54 00:03:52 0.491
field9269 40 00:01:54 00:03:58 0.480
field9850 40 00:01:54 00:03:50 0.497
field9851 40 00:01:54 00:03:52 0.491
field9852 40 00:01:54 00:03:58 0.480
field9853 40 00:01:54 00:03:55 0.485
field9854 40 00:01:54 00:03:55 0.485
field9855 40 00:01:54 00:04:01 0.474
field9856 40 00:01:54 00:04:01 0.474
field9857 40 00:01:54 00:03:50 0.497
field9858 40 00:01:54 00:03:52 0.491
field9859 40 00:01:54 00:03:50 0.497
field9860 40 00:01:54 00:03:55 0.485
field9861 40 00:01:54 00:03:50 0.497
field9862 40 00:01:54 00:03:55 0.485
field9863 40 00:01:54 00:03:55 0.485
field9864 40 00:01:54 00:04:01 0.474
field9865 40 00:01:54 00:03:55 0.485
field9866 40 00:01:54 00:03:55 0.485
field9867 40 00:01:54 00:04:01 0.474
field9868 40 00:01:54 00:03:55 0.485
field9869 40 00:01:54 00:04:01 0.474
field9870 40 00:01:54 00:05:44 0.332
field9871 40 00:01:54 00:04:06 0.463
field9872 40 00:01:54 00:04:04 0.469
field9873 40 00:01:54 00:04:04 0.469
field9874 40 00:01:54 00:03:55 0.485
field9875 40 00:01:54 00:04:01 0.474
field9876 40 00:01:54 00:04:01 0.474
field9877 40 00:01:54 00:03:58 0.480
field9878 40 00:01:54 00:04:18 0.443
field9879 40 00:01:54 00:05:08 0.371










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 41:41:48 110:54:04 0.376

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 1847:07:04 938:47:56 908:19:07 254:19:45 217:59:47 217:59:47 217:59:47 156:48:15
Observed 973:30:29
(52.70%)		 586:17:53
(62.45%)		 387:12:35
(42.63%)		 64:42:34
(25.44%)		 91:53:50
(42.16%)		 174:03:31
(79.84%)		 56:32:39
(25.94%)		 156:48:15
(N/A)
Remaining 873:36:34
(47.30%)		 352:30:03
(37.55%)		 521:06:31
(57.37%)		 189:37:10
(74.56%)		 126:05:57
(57.84%)		 43:56:15
(20.16%)		 161:27:08
(74.06%)		 00:00:00
(N/A)











Camera status (2025/07/09)



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