PRIME Observation Log 2025/08/06

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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: 2025/08/06
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 114.00021 +- 0.00630 K
ImageAcquisitionErrors occurred 1 times @
2025-08-07 03:15:01 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:26:42
Morning 06:58:06
Science Observation
(Sun altitude < -10°)
Start 18:48:45
End 06:36:05
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:48:45
End 03:06:05


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 12:02:48 11:47:20 1.022
GB Time 08:16:06 08:17:20 0.997
Non-GB Time 03:46:42 03:30:00 1.080


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 432 00:20:35 00:41:35 0.495
GB 4844 03:50:53 08:16:06 0.465
SAAO 518 00:24:41 00:56:40 0.436
OU 518 00:24:41 00:56:40 0.436
NASA 518 00:24:41 00:56:40 0.436
ABC 518 00:24:41 00:56:40 0.436


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 432 00:20:35 00:41:35 0.495
Bulge 4748 03:46:19 08:05:42 0.466
SKY 96 00:04:34 00:10:23 0.440
all_sky_grid 2072 01:38:45 03:46:42 0.436


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OH 404 00:19:15 00:38:56 0.495
GB76_test OH 16 00:00:45 00:03:31 0.216
GB74_test OJ 20 00:00:57 00:06:31 0.146
GB74_dither OJ 48 00:02:17 00:04:35 0.498
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB76_dither OJ 48 00:02:17 00:04:35 0.498
GB77_dither OJ 48 00:02:17 00:04:38 0.493
GB78_dither OJ 48 00:02:17 00:04:32 0.503
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:04:38 0.493
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB94_dither OJ 48 00:02:17 00:04:32 0.503
GB93_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:38 0.493
GB91_dither OJ 48 00:02:17 00:04:35 0.498
GB108_dither OJ 48 00:02:17 00:04:38 0.493
GB109_dither OJ 48 00:02:17 00:04:38 0.493
GB110_dither OJ 48 00:02:17 00:04:35 0.498
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 00:05:34 0.411
GB76_dither OH 368 00:17:32 00:47:55 0.366
GB77_dither OH 360 00:17:09 00:35:40 0.481
GB78_dither OH 360 00:17:09 00:34:58 0.491
GB94_dither OH 360 00:17:09 00:35:26 0.484
GB111_dither OH 360 00:17:09 00:35:54 0.478
GB110_dither OH 360 00:17:09 00:35:21 0.485
GB109_dither OH 192 00:09:09 00:18:52 0.485
GB92_dither OH 96 00:04:34 00:09:16 0.493
GB93_dither OH 96 00:04:34 00:09:25 0.486
GB75_dither OH 192 00:09:09 00:18:38 0.491
GB112_dither OH 168 00:08:00 00:16:33 0.483
GCsky 96 00:04:34 00:10:23 0.440
GB71_dither OH 24 00:01:08 00:02:19 0.493
GB72_dither OH 24 00:01:08 00:02:21 0.483
GB73_dither OH 24 00:01:08 00:02:24 0.474
GB90_dither OH 24 00:01:08 00:02:19 0.493
GB89_dither OH 24 00:01:08 00:02:19 0.493
GB88_dither OH 24 00:01:08 00:02:24 0.474
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 00:03:15 0.352
GB79_dither OH 168 00:08:00 00:17:38 0.454
GB60_dither OH 96 00:04:34 00:09:41 0.472
GB95_dither OH 72 00:03:25 00:07:03 0.487
GB113_dither OH 72 00:03:25 00:07:03 0.487
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB74_dither OH 24 00:01:08 00:02:21 0.484
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:21 0.483
GB96_dither OH 24 00:01:08 00:02:21 0.484
GB80_dither OH 24 00:01:08 00:02:21 0.484
field9905_test 8 00:00:22 00:02:57 0.129
field9905 40 00:01:54 00:04:54 0.388
field9326 40 00:01:54 00:04:04 0.469
field9911 40 00:01:54 00:03:58 0.480
field8767 40 00:01:54 00:04:18 0.443
field11702 40 00:01:54 00:07:12 0.265
field11098 40 00:01:54 00:03:58 0.480
field10802 40 00:01:54 00:10:36 0.180
field8754 40 00:01:54 00:04:15 0.448
field11100 40 00:01:54 00:04:01 0.474
field11410 40 00:01:54 00:05:36 0.340
field11099 40 00:01:54 00:03:55 0.485
field11101 40 00:01:54 00:03:52 0.491
field11102 40 00:01:54 00:04:08 0.460
field11103 40 00:01:54 00:04:19 0.441
field11104 40 00:01:54 00:03:52 0.491
field11105 40 00:01:54 00:03:50 0.497
field11106 40 00:01:54 00:03:54 0.488
field11107 40 00:01:54 00:04:10 0.456
field11108 40 00:01:54 00:04:04 0.469
field11109 40 00:01:54 00:05:00 0.381
field11081 40 00:01:54 00:04:09 0.458
field11082 40 00:01:54 00:03:55 0.485
field11083 40 00:01:54 00:03:52 0.491
field11084 40 00:01:54 00:04:09 0.458
field11085 40 00:01:54 00:03:54 0.488
field11086 40 00:01:54 00:04:05 0.466
field11087 40 00:01:54 00:03:52 0.491
field11088 40 00:01:54 00:03:55 0.485
field11089 40 00:01:54 00:03:57 0.482
field11090 40 00:01:54 00:04:08 0.461
field11091 40 00:01:54 00:04:01 0.474
field11092 40 00:01:54 00:04:01 0.474
field11093 40 00:01:54 00:03:57 0.482
field11094 40 00:01:54 00:04:13 0.451
field11095 40 00:01:54 00:03:50 0.497
field11096 40 00:01:54 00:03:55 0.485
field11097 40 00:01:54 00:04:39 0.410
field10477 40 00:01:54 00:04:10 0.456
field10478 40 00:01:54 00:03:55 0.485
field10479 40 00:01:54 00:04:06 0.463
field10480 40 00:01:54 00:04:01 0.474
field10481 40 00:01:54 00:03:55 0.485
field10482 40 00:01:54 00:03:50 0.497
field10483 40 00:01:54 00:03:52 0.491
field10484 40 00:01:54 00:03:58 0.480
field10485 40 00:01:54 00:03:55 0.485
field10486 40 00:01:54 00:04:15 0.448
field10487 40 00:01:54 00:04:12 0.453
field10488 40 00:01:54 00:03:58 0.480
field10489 40 00:01:54 00:04:06 0.463
field10490 40 00:01:54 00:03:52 0.491
field10491 24 00:01:08 00:04:47 0.239
FLAT_test OH 28 00:01:20 00:02:39 0.503










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 41:33:12 71:04:34 0.585

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 1902:53:46 983:28:11 919:25:35 257:26:21 220:39:44 220:39:44 220:39:44 168:43:42
Observed 1198:05:04
(62.96%)		 761:10:35
(77.40%)		 436:54:28
(47.52%)		 83:42:55
(32.52%)		 101:35:13
(46.04%)		 185:22:17
(84.01%)		 66:14:02
(30.02%)		 168:43:42
(N/A)
Remaining 704:48:42
(37.04%)		 222:17:36
(22.60%)		 482:31:06
(52.48%)		 173:43:26
(67.48%)		 119:04:31
(53.96%)		 35:17:26
(15.99%)		 154:25:42
(69.98%)		 00:00:00
(N/A)











Camera status (2025/08/06)



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