PRIME Observation Log 2025/07/12

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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: 2025/07/12
Local observer: Takuto
Remote observer: None
Weather: Clear
Comment:
Detector Temperature: 114.00003 +- 0.00113 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:12:05
Morning 07:12:42
Science Observation
(Sun altitude < -10°)
Start 18:34:56
End 06:49:53
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:34:56
End 04:44:23


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:43:30 12:14:57 1.039
GB Time 10:04:50 10:09:27 0.992
Non-GB Time 02:38:39 02:05:29 1.264


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 320 00:15:15 00:29:26 0.518
GB 5832 04:37:59 10:04:50 0.460
SAAO 356 00:16:58 00:39:39 0.428
OU 356 00:16:58 00:39:39 0.428
NASA 356 00:16:58 00:39:39 0.428
ABC 356 00:16:58 00:39:39 0.428


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 320 00:15:15 00:29:26 0.518
Bulge 5712 04:32:16 09:51:14 0.461
SKY 120 00:05:43 00:13:36 0.420
all_sky_grid 1424 01:07:52 02:38:39 0.428


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OH 320 00:15:15 00:29:26 0.518
GB98_dither_test OJ 12 00:00:34 00:03:31 0.163
GB98_dither OJ 48 00:02:17 00:04:38 0.493
GB99_dither OJ 48 00:02:17 00:04:35 0.498
GB100_dither OJ 48 00:02:17 00:04:32 0.503
GB117_dither OJ 48 00:02:17 00:04:32 0.503
GB116_dither OJ 48 00:02:17 00:04:35 0.498
GB115_dither OJ 48 00:02:17 00:04:35 0.498
GB114_dither OJ 48 00:02:17 00:04:38 0.493
GB113_dither OJ 48 00:02:17 00:04:32 0.503
GB112_dither OJ 48 00:02:17 00:04:38 0.493
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 00:04:32 0.503
GB108_dither OJ 48 00:02:17 00:04:32 0.503
GB107_dither OJ 48 00:02:17 00:04:35 0.498
GB106_dither OJ 48 00:02:17 00:04:35 0.498
GB105_dither OJ 48 00:02:17 00:04:43 0.484
GCsky 120 00:05:43 00:13:36 0.420
GB76_dither_test OH 12 00:00:34 00:03:59 0.144
GB76_dither OH 480 00:22:52 01:00:26 0.379
GB77_dither OH 480 00:22:52 00:47:02 0.486
GB78_dither OH 480 00:22:52 00:46:53 0.488
GB94_dither OH 480 00:22:52 00:47:05 0.486
GB111_dither OH 480 00:22:52 00:47:10 0.485
GB110_dither OH 480 00:22:52 00:47:16 0.484
GB109_dither OH 240 00:11:26 00:23:42 0.483
GB92_dither OH 120 00:05:43 00:11:44 0.487
GB93_dither OH 120 00:05:43 00:11:47 0.485
GB75_dither OH 240 00:11:26 00:24:02 0.476
GB112_dither OH 240 00:11:26 00:23:42 0.483
GB79_dither OH 240 00:11:26 00:27:15 0.420
GB60_dither OH 120 00:05:43 00:11:49 0.484
GB95_dither OH 120 00:05:43 00:11:47 0.485
GB113_dither OH 120 00:05:43 00:11:41 0.489
GB96_dither OH 24 00:01:08 00:02:21 0.484
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 00:03:34 0.320
GB74_dither OH 24 00:01:08 00:02:24 0.474
GB91_dither OH 24 00:01:08 00:02:24 0.474
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB107_dither OH 24 00:01:08 00:02:24 0.474
GB90_dither OH 24 00:01:08 00:02:24 0.474
GB73_dither OH 24 00:01:08 00:02:19 0.493
GB72_dither OH 24 00:01:08 00:02:21 0.484
GB89_dither OH 24 00:01:08 00:02:24 0.474
GB106_dither OH 24 00:01:08 00:02:16 0.503
GB105_dither OH 24 00:01:08 00:02:24 0.474
GB88_dither OH 24 00:01:08 00:03:26 0.333
GB71_dither OH 24 00:01:08 00:02:41 0.425
GB90_dither OJ 48 00:02:17 00:04:43 0.484
GB89_dither OJ 48 00:02:17 00:11:30 0.199
field10406_test 4 00:00:11 00:06:04 0.031
field10428_test 20 00:00:57 00:05:37 0.169
field10428 40 00:01:54 00:03:47 0.503
field10429 40 00:01:54 00:03:50 0.497
field10430 40 00:01:54 00:05:42 0.334
field10726 40 00:01:54 00:03:50 0.497
field10727 40 00:01:54 00:03:55 0.485
field10728 40 00:01:54 00:04:01 0.474
field15057 40 00:01:54 00:03:52 0.491
field15058 40 00:01:54 00:03:50 0.497
field15059 40 00:01:54 00:03:52 0.491
field15060 40 00:01:54 00:04:15 0.448
field8436 40 00:01:54 00:03:55 0.485
field8437 40 00:01:54 00:03:55 0.485
field8438 40 00:01:54 00:03:50 0.497
field8439 40 00:01:54 00:03:55 0.486
field8440 40 00:01:54 00:03:50 0.497
field8441 40 00:01:54 00:03:55 0.485
field8442 40 00:01:54 00:03:52 0.491
field8443 40 00:01:54 00:03:50 0.497
field8444 40 00:01:54 00:03:52 0.491
field8445 40 00:01:54 00:03:58 0.480
field8446 40 00:01:54 00:03:52 0.491
field8447 40 00:01:54 00:04:01 0.474
field8448 40 00:01:54 00:04:01 0.474
field8449 40 00:01:54 00:03:55 0.485
field8450 40 00:01:54 00:03:58 0.480
field8451 40 00:01:54 00:03:55 0.485
field8452 40 00:01:54 00:04:01 0.474
field8453 40 00:01:54 00:03:58 0.480
field8454 40 00:01:54 00:04:01 0.474
field8455 40 00:01:54 00:03:52 0.491
field8456 40 00:01:54 00:03:52 0.491
field8457 40 00:01:54 00:04:01 0.474
field8458 40 00:01:54 00:03:58 0.480
field8459 40 00:01:54 00:04:01 0.474
field8460 40 00:01:54 00:11:29 0.166










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 62:34:29 147:41:07 0.424

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 1849:36:12 941:38:31 907:57:41 254:13:45 217:54:38 217:54:38 217:54:38 157:54:52
Observed 994:23:09
(53.76%)		 604:29:17
(64.20%)		 389:53:52
(42.94%)		 65:22:53
(25.72%)		 92:34:09
(42.48%)		 174:43:50
(80.18%)		 57:12:58
(26.26%)		 157:54:52
(N/A)
Remaining 855:13:03
(46.24%)		 337:09:14
(35.80%)		 518:03:48
(57.06%)		 188:50:51
(74.28%)		 125:20:29
(57.52%)		 43:10:47
(19.82%)		 160:41:40
(73.74%)		 00:00:00
(N/A)











Camera status (2025/07/12)



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