PRIME Observation Log 2025/08/01

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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: 2025/08/01
Local observer: Togo
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00006 +- 0.00127 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:23:39
Morning 07:02:08
Science Observation
(Sun altitude < -10°)
Start 18:45:51
End 06:39:58
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:45:51
End 03:25:45


Observed Fraction
Actually Observed Time
(hh:mm:ss)
Expected Observation Time
(hh:mm:ss)
Observed Fraction
(observed/expected)
Total Time 12:04:45 11:54:06 1.015
GB Time 08:21:21 08:39:53 0.964
Non-GB Time 03:43:23 03:14:12 1.150


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 440 00:20:58 00:42:03 0.499
GB 4980 03:57:22 08:21:21 0.473
SAAO 3510 02:47:18 03:23:59 0.820
OU 60 00:02:51 00:06:27 0.442
NASA 60 00:02:51 00:06:27 0.442
ABC 60 00:02:51 00:06:27 0.442


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss)
Total Observation
(hh:mm:ss)
Efficiency
(exp./obs.)
TWILIGHT 440 00:20:58 00:42:03 0.499
Bulge 4904 03:53:45 08:13:27 0.474
SKY 76 00:03:37 00:07:53 0.459
all_sky_grid 3690 02:55:53 03:43:23 0.787


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss)
Total Observation
(hh:mm:ss)
Efficiency
(exp./obs.)
FLAT OY 440 00:20:58 00:42:03 0.499
GB74_test OJ 32 00:01:31 00:10:33 0.145
GB74_dither OJ 48 00:02:17 00:04:32 0.503
GB75_dither OJ 48 00:02:17 00:04:38 0.493
GB76_dither OJ 48 00:02:17 00:04:38 0.493
GB77_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:38 0.493
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB80_dither OJ 48 00:02:17 00:04:32 0.503
GB97_dither OJ 48 00:02:17 00:04:32 0.503
GB96_dither OJ 48 00:02:17 00:04:38 0.493
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 00:04:38 0.493
GB92_dither OJ 48 00:02:17 00:04:32 0.503
GB91_dither OJ 48 00:02:17 00:04:38 0.493
GB108_dither OJ 48 00:02:17 00:04:35 0.498
GB109_dither OJ 48 00:02:17 00:04:38 0.493
GB110_dither OJ 48 00:02:17 00:04:38 0.493
GB111_dither OJ 48 00:02:17 00:04:38 0.493
GB112_dither OJ 48 00:02:17 00:04:35 0.498
GB113_dither OJ 48 00:02:17 00:04:38 0.493
GB114_dither OJ 48 00:02:17 00:05:11 0.440
GB76_test OH 20 00:00:57 00:02:58 0.321
GB76_dither OH 360 00:17:09 00:35:54 0.478
GB77_dither OH 360 00:17:09 00:35:18 0.486
GB78_dither OH 384 00:18:18 00:38:22 0.477
GB94_dither OH 360 00:17:09 00:35:18 0.486
GB111_dither OH 384 00:18:18 00:37:42 0.485
GB110_dither OH 384 00:18:18 00:38:05 0.481
GB109_dither OH 192 00:09:09 00:19:12 0.476
GB92_dither OH 96 00:04:34 00:09:16 0.493
GB93_dither OH 96 00:04:34 00:09:33 0.479
GB75_dither OH 168 00:08:00 00:16:19 0.490
GB112_dither OH 192 00:09:09 00:18:58 0.482
GB79_dither OH 168 00:08:00 00:17:10 0.466
GB60_dither OH 96 00:04:34 00:09:27 0.484
GB71_dither OH 24 00:01:08 00:02:24 0.474
GB72_dither OH 24 00:01:08 00:02:27 0.465
GB73_dither OH 24 00:01:08 00:02:24 0.474
GB90_dither OH 24 00:01:08 00:02:21 0.484
GB89_dither OH 24 00:01:08 00:02:19 0.493
GB88_dither OH 24 00:01:08 00:02:21 0.483
GB105_dither OH 24 00:01:08 00:02:21 0.484
GB106_dither OH 24 00:01:08 00:02:21 0.484
GB107_dither OH 24 00:01:08 00:03:20 0.342
GB95_dither OH 72 00:03:25 00:07:11 0.477
GB113_dither OH 96 00:04:34 00:09:22 0.488
GB80_dither OH 24 00:01:08 00:02:21 0.483
GB97_dither OH 24 00:01:08 00:02:21 0.484
GB96_dither OH 24 00:01:08 00:02:27 0.465
GB114_dither OH 24 00:01:08 00:02:52 0.397
GCsky 72 00:03:25 00:07:19 0.468
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:16 0.503
GB74_dither OH 24 00:01:08 00:02:24 0.474
GCsky_test 4 00:00:11 00:00:33 0.337
GB60_test OH 4 00:00:11 00:00:28 0.404
GB74_test OH 4 00:00:11 00:00:25 0.448
GB75_test OH 4 00:00:11 00:00:22 0.503
GB77_test OH 4 00:00:11 00:00:25 0.448
GB78_test OH 4 00:00:11 00:00:28 0.404
GB79_test OH 4 00:00:11 00:00:22 0.503
GB80_test OH 4 00:00:11 00:00:25 0.448
GB97_test OH 4 00:00:11 00:00:25 0.448
GB96_test OH 4 00:00:11 00:00:22 0.503
GB95_test OH 4 00:00:11 00:00:25 0.448
GB94_test OH 4 00:00:11 00:00:22 0.504
GB93_test OH 4 00:00:11 00:00:28 0.404
GB92_test OH 4 00:00:11 00:00:42 0.270
field2606_test 30 00:01:25 00:02:55 0.488
field2606 684 00:32:36 00:38:36 0.844
field1267 684 00:32:36 00:38:42 0.842
field5301 684 00:32:36 00:38:31 0.846
field2981 684 00:32:36 00:38:36 0.844
field1693 684 00:32:36 00:40:09 0.812
field12628 40 00:01:54 00:03:52 0.491
field12629 40 00:01:54 00:04:04 0.469
field12630 40 00:01:54 00:03:58 0.480
field12631 40 00:01:54 00:04:01 0.474
field12632 40 00:01:54 00:03:52 0.491
field12633 40 00:01:54 00:06:01 0.316










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 224:49:02 377:25:14 0.596
Aug 12:04:45 11:54:06 1.015

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 1903:00:33 979:44:04 923:16:28 258:31:00 221:35:09 221:35:09 221:35:09 168:02:06
Observed 1168:36:36
(61.41%)
736:20:33
(75.16%)
432:16:02
(46.82%)
82:33:18
(31.93%)
100:25:36
(45.32%)
184:12:41
(83.13%)
65:04:25
(29.37%)
168:02:06
(N/A)
Remaining 734:23:56
(38.59%)
243:23:31
(24.84%)
491:00:25
(53.18%)
175:57:42
(68.07%)
121:09:32
(54.68%)
37:22:27
(16.87%)
156:30:43
(70.63%)
00:00:00
(N/A)











Camera status (2025/08/01)



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