PRIME Observation Log 2025/07/13

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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: 2025/07/13
Local observer: Takuto
Remote observer: None
Weather: Clear
Comment:
Detector Temperature: 114.00003 +- 0.00112 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:12:37
Morning 07:12:24
Science Observation
(Sun altitude < -10°)
Start 18:35:26
End 06:49:36
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:35:26
End 04:40:27


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 10:38:26 12:14:10 0.870
GB Time 07:56:18 10:05:01 0.787
Non-GB Time 02:42:07 02:09:09 1.255


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 00:30:31 0.500
GB 4464 03:32:47 07:56:18 0.447
SAAO 402 00:19:09 00:40:31 0.473
OU 402 00:19:09 00:40:31 0.473
NASA 402 00:19:09 00:40:31 0.473
ABC 402 00:19:09 00:40:31 0.473


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 320 00:15:15 00:30:31 0.500
Bulge 4344 03:27:03 07:42:09 0.448
SKY 120 00:05:43 00:14:09 0.404
all_sky_grid 1608 01:16:38 02:42:07 0.473


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OJ 320 00:15:15 00:30:31 0.500
GB80_dither_test OJ 60 00:02:51 00:18:14 0.157
GB80_dither OJ 48 00:02:17 00:04:32 0.503
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 00:05:06 0.448
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 00:05:23 0.425
GCsky 120 00:05:43 00:14:09 0.404
GB76_dither_test OH 4 00:00:11 00:13:05 0.015
GB76_dither OH 288 00:13:43 00:28:23 0.484
GB77_dither OH 288 00:13:43 00:28:34 0.480
GB78_dither OH 288 00:13:43 00:28:31 0.481
GB94_dither OH 288 00:13:43 00:28:29 0.482
GB111_dither OH 288 00:13:43 00:28:12 0.487
GB110_dither OH 288 00:13:43 00:28:20 0.484
GB109_dither OH 144 00:06:51 00:14:25 0.476
GB92_dither OH 72 00:03:25 00:07:05 0.484
GB93_dither OH 72 00:03:25 00:07:05 0.484
GB75_dither OH 144 00:06:51 00:15:05 0.455
GB112_dither OH 144 00:06:51 00:14:25 0.476
GB79_dither OH 144 00:06:51 00:15:35 0.440
GB60_dither OH 72 00:03:25 00:07:19 0.468
GB108_dither OH 24 00:01:08 00:02:21 0.483
GB91_dither OH 24 00:01:08 00:02:21 0.484
GB74_dither OH 24 00:01:08 00:02:21 0.484
GB95_dither OH 72 00:03:25 00:07:08 0.480
GB113_dither OH 72 00:03:25 00:07:08 0.480
GB96_dither OH 24 00:01:08 00:02:21 0.484
GB80_dither OH 24 00:01:08 00:02:21 0.484
GB97_dither OH 24 00:01:08 00:02:24 0.474
GB114_dither OH 24 00:01:08 00:02:52 0.397
GB83_dither_test OJ 8 00:00:22 00:02:59 0.127
GB83_dither OJ 48 00:02:17 00:04:38 0.493
GB82_dither OJ 48 00:02:17 00:04:38 0.493
GB81_dither OJ 48 00:02:17 00:04:41 0.488
GB98_dither OJ 48 00:02:17 00:04:43 0.484
GB99_dither OJ 48 00:02:17 00:04:41 0.488
GB100_dither OJ 48 00:02:17 00:04:41 0.488
GB117_dither OJ 48 00:02:17 00:04:43 0.484
GB116_dither OJ 48 00:02:17 00:04:41 0.488
GB115_dither OJ 48 00:02:17 00:04:35 0.498
GB114_dither OJ 48 00:02:17 00:04:41 0.488
GB113_dither OJ 48 00:02:17 00:04:35 0.498
GB112_dither OJ 48 00:02:17 00:04:41 0.488
GB111_dither OJ 48 00:02:17 00:04:43 0.484
GB110_dither OJ 48 00:02:17 00:04:38 0.493
GB109_dither OJ 48 00:02:17 00:04:38 0.493
GB108_dither OJ 48 00:02:17 00:09:15 0.247
field10436_test 8 00:00:22 00:02:43 0.140
field10436 40 00:01:54 00:03:50 0.497
field10437 40 00:01:54 00:03:47 0.503
field10438 40 00:01:54 00:03:52 0.491
field10439 40 00:01:54 00:03:50 0.497
field10440 40 00:01:54 00:03:52 0.491
field10441 40 00:01:54 00:03:50 0.497
field10442 40 00:01:54 00:03:50 0.497
field10443 40 00:01:54 00:03:55 0.485
field10444 40 00:01:54 00:03:58 0.480
field10445 40 00:01:54 00:03:52 0.491
field10446 40 00:01:54 00:03:55 0.485
field10447 40 00:01:54 00:04:01 0.474
field10448 40 00:01:54 00:03:55 0.485
field10449 40 00:01:54 00:04:01 0.474
field10450 40 00:01:54 00:03:50 0.497
field10451 40 00:01:54 00:03:50 0.497
field10452 40 00:01:54 00:03:55 0.485
field10453 40 00:01:54 00:03:50 0.497
field10454 40 00:01:54 00:03:50 0.497
field10455 40 00:01:54 00:03:52 0.491
field10456 40 00:01:54 00:03:52 0.491
field10457 40 00:01:54 00:03:50 0.497
field10458 40 00:01:54 00:03:52 0.491
field10459 40 00:01:54 00:03:52 0.491
field10460 40 00:01:54 00:03:58 0.480
field10461 40 00:01:54 00:03:55 0.485
field10462 40 00:01:54 00:03:52 0.491
field10463 40 00:01:54 00:03:55 0.485
field10464 40 00:01:54 00:03:55 0.485
field10465 40 00:01:54 00:03:58 0.480
field10466 40 00:01:54 00:03:55 0.485
field10467 40 00:01:54 00:03:52 0.491
field10468 40 00:01:54 00:03:52 0.491
field10469 40 00:01:54 00:03:55 0.485
field10470 40 00:01:54 00:04:01 0.474
field10471 40 00:01:54 00:04:01 0.474
field10472 40 00:01:54 00:03:55 0.485
field10473 40 00:01:54 00:03:58 0.480
field10474 40 00:01:54 00:03:58 0.480
field10475 40 00:01:54 00:07:03 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 244:24:55 372:31:50 0.656
Jun 209:59:39 370:50:11 0.566
Jul 73:12:55 159:55:18 0.458

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 1854:07:33 944:32:19 909:35:13 254:41:03 218:18:03 218:18:03 218:18:03 158:25:23
Observed 1005:01:35
(54.20%)		 612:25:36
(64.84%)		 392:35:59
(43.16%)		 66:03:25
(25.94%)		 93:14:41
(42.71%)		 175:24:22
(80.35%)		 57:53:30
(26.52%)		 158:25:23
(N/A)
Remaining 849:05:58
(45.80%)		 332:06:43
(35.16%)		 516:59:14
(56.84%)		 188:37:38
(74.06%)		 125:03:22
(57.29%)		 42:53:40
(19.65%)		 160:24:33
(73.48%)		 00:00:00
(N/A)











Camera status (2025/07/13)



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