PRIME Observation Log 2025/09/09

Return to index
Previous day Next day

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: 2025/09/09
Local observer: Asahi
Remote observer:
Weather: cloudy, clear
Comment:
Detector Temperature: 114.31467 +- 0.14958 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:47:14
Morning 06:19:59
Science Observation
(Sun altitude < -10°)
Start 19:08:34
End 05:58:41
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:08:34
End 00:52:24


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 10:43:35 10:50:07 0.990
GB Time 05:08:29 05:43:50 0.897
Non-GB Time 05:35:06 05:06:16 1.094


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.)
GB 2984 02:22:14 05:08:29 0.461
SAAO 1515 01:12:12 02:23:18 0.504
CALIB 160 00:07:37 00:13:49 0.552
OU 650 00:30:59 01:03:55 0.485
NASA 650 00:30:59 01:03:55 0.485
ABC 650 00:30:59 01:03:55 0.485


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 2936 02:19:56 05:02:17 0.463
SKY 48 00:02:17 00:06:11 0.370
all_sky_grid 3300 02:37:18 05:13:16 0.502
ToO 165 00:07:51 00:21:49 0.360
TWILIGHT 160 00:07:37 00:13:49 0.552


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB76_test OH 8 00:00:22 00:02:37 0.145
GB76_dither OH 96 00:04:34 00:09:35 0.477
GB77_dither OH 96 00:04:34 00:10:42 0.427
GB78_dither OH 96 00:04:34 00:10:05 0.454
GB94_dither OH 96 00:04:34 00:09:41 0.472
GB111_dither OH 96 00:04:34 00:10:04 0.454
GB110_dither OH 96 00:04:34 00:10:13 0.448
GB109_dither OH 48 00:02:17 00:04:46 0.479
GB108_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:21 0.484
GB74_dither OH 24 00:01:08 00:02:35 0.440
GB92_dither OH 24 00:01:08 00:02:24 0.476
GB93_dither OH 24 00:01:08 00:02:42 0.423
GB75_dither OH 48 00:02:17 00:04:43 0.484
GB112_dither OH 48 00:02:17 00:04:52 0.470
GB79_dither OH 48 00:02:17 00:05:08 0.445
GB60_dither OH 24 00:01:08 00:02:42 0.423
GB95_dither OH 24 00:01:08 00:02:33 0.448
GB113_dither OH 24 00:01:08 00:02:30 0.456
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB96_dither OH 24 00:01:08 00:02:32 0.449
GB80_dither OH 24 00:01:08 00:02:30 0.455
GCsky 48 00:02:17 00:06:11 0.370
GB60_dither OJ 48 00:02:17 00:04:38 0.493
GB80_dither OJ 48 00:02:17 00:04:38 0.493
GB79_dither OJ 48 00:02:17 00:04:49 0.475
GB78_dither OJ 48 00:02:17 00:04:41 0.487
GB77_dither OJ 48 00:02:17 00:04:46 0.479
GB76_dither OJ 48 00:02:17 00:04:35 0.498
GB75_dither OJ 48 00:02:17 00:04:40 0.489
GB74_dither OJ 48 00:02:17 00:04:55 0.464
GB91_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:05:17 0.432
GB93_dither OJ 48 00:02:17 00:04:46 0.479
GB94_dither OJ 48 00:02:17 00:04:49 0.475
GB95_dither OJ 48 00:02:17 00:04:58 0.460
GB96_dither OJ 48 00:02:17 00:05:06 0.448
GB97_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 00:04:46 0.479
GB112_dither OJ 48 00:02:17 00:05:00 0.456
GB111_dither OJ 48 00:02:17 00:04:43 0.484
GB110_dither OJ 48 00:02:17 00:04:32 0.503
GB109_dither OJ 48 00:02:17 00:05:11 0.440
GB108_dither OJ 48 00:02:17 00:05:09 0.444
GB83_dither OJ 48 00:02:17 00:04:40 0.489
GB82_dither OJ 48 00:02:17 00:04:52 0.469
GB81_dither OJ 48 00:02:17 00:05:20 0.429
GB98_dither OJ 48 00:02:17 00:04:49 0.474
GB99_dither OJ 48 00:02:17 00:04:57 0.462
GB100_dither OJ 48 00:02:17 00:04:55 0.464
GB117_dither OJ 48 00:02:17 00:04:38 0.493
GB116_dither OJ 48 00:02:17 00:04:57 0.461
GB115_dither OJ 48 00:02:17 00:04:55 0.465
GB73_dither OJ 48 00:02:17 00:04:57 0.461
GB72_dither OJ 48 00:02:17 00:04:43 0.484
GB71_dither OJ 48 00:02:17 00:04:46 0.479
GB88_dither OJ 48 00:02:17 00:05:11 0.440
GB89_dither OJ 48 00:02:17 00:05:20 0.429
GB90_dither OJ 48 00:02:17 00:04:46 0.479
GB107_dither OJ 48 00:02:17 00:04:46 0.479
GB106_dither OJ 48 00:02:17 00:05:11 0.440
field3744_test 16 00:00:45 00:03:32 0.216
field3744 684 00:32:36 00:54:00 0.604
field1811_test 15 00:00:42 00:03:14 0.221
field1811 150 00:07:09 00:18:35 0.385
field9015 40 00:01:54 00:03:52 0.491
field9016 40 00:01:54 00:03:50 0.497
field9017 40 00:01:54 00:03:50 0.497
field9018 40 00:01:54 00:03:55 0.485
field9019 40 00:01:54 00:03:50 0.497
field9020 40 00:01:54 00:03:50 0.497
field9021 40 00:01:54 00:03:50 0.497
field9022 40 00:01:54 00:03:52 0.491
field9023 40 00:01:54 00:03:52 0.491
field9024 40 00:01:54 00:03:50 0.497
field9025 40 00:01:54 00:03:55 0.485
field9026 40 00:01:54 00:03:52 0.491
field9027 40 00:01:54 00:03:52 0.491
field9028 40 00:01:54 00:03:55 0.486
field9029 40 00:01:54 00:03:52 0.491
field9030 40 00:01:54 00:03:52 0.491
field9031 40 00:01:54 00:03:50 0.497
field9032 40 00:01:54 00:03:55 0.485
field9033 40 00:01:54 00:03:52 0.491
field9034 40 00:01:54 00:03:55 0.485
field9035 40 00:01:54 00:03:58 0.480
field9036 40 00:01:54 00:03:50 0.497
field9037 40 00:01:54 00:03:55 0.486
field9038 40 00:01:54 00:03:58 0.480
field9039 40 00:01:54 00:03:50 0.497
field9040 40 00:01:54 00:03:55 0.485
field9041 40 00:01:54 00:03:52 0.491
field9042 40 00:01:54 00:03:52 0.491
field9043 40 00:01:54 00:04:01 0.474
field9044 40 00:01:54 00:03:52 0.491
field9045 40 00:01:54 00:03:52 0.491
field9046 40 00:01:54 00:03:55 0.485
field9047 40 00:01:54 00:03:52 0.491
field9048 40 00:01:54 00:03:52 0.491
field9049 40 00:01:54 00:03:58 0.480
field9050 40 00:01:54 00:03:55 0.485
field9051 40 00:01:54 00:03:58 0.480
field9052 40 00:01:54 00:03:55 0.485
field9053 40 00:01:54 00:03:58 0.480
field9054 40 00:01:54 00:03:55 0.485
field9055 40 00:01:54 00:04:01 0.474
field9056 40 00:01:54 00:04:40 0.408
field9057 40 00:01:54 00:03:55 0.485
field9058 40 00:01:54 00:03:55 0.485
field9059 40 00:01:54 00:03:55 0.485
field9060 40 00:01:54 00:04:01 0.474
field9061 40 00:01:54 00:04:01 0.474
field9062 40 00:01:54 00:03:55 0.485
field9063 40 00:01:54 00:04:01 0.474
field9064 40 00:01:54 00:03:55 0.485
field9065 40 00:01:54 00:03:55 0.485
field9066 40 00:01:54 00:03:58 0.480
field9067 40 00:01:54 00:03:55 0.485
field9068 40 00:01:54 00:04:04 0.469
field9069 40 00:01:54 00:04:46 0.400
field13870 40 00:01:54 00:03:50 0.497
field13871 40 00:01:54 00:03:47 0.503
field13872 40 00:01:54 00:03:47 0.503
field13873 40 00:01:54 00:03:47 0.503
field13874 40 00:01:54 00:03:47 0.503
field13875 40 00:01:54 00:03:47 0.503
field13876 40 00:01:54 00:03:47 0.503
field13877 40 00:01:54 00:03:47 0.503
field13878 40 00:01:54 00:03:47 0.503
field13879 40 00:01:54 00:04:34 0.416
FLAT OJ 160 00:07:37 00:13:49 0.552










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 230:19:15 357:22:01 0.644
Sep 70:30:55 98:38:30 0.715

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 1969:42:48 1024:14:38 945:28:09 264:43:52 226:54:45 226:54:45 226:54:45 183:09:08
Observed 1457:22:04
(73.99%)		 920:29:27
(89.87%)		 536:52:37
(56.78%)		 127:10:46
(48.04%)		 119:18:59
(52.58%)		 206:25:02
(90.97%)		 83:57:48
(37.00%)		 183:09:08
(N/A)
Remaining 512:20:43
(26.01%)		 103:45:11
(10.13%)		 408:35:32
(43.22%)		 137:33:06
(51.96%)		 107:35:45
(47.42%)		 20:29:43
(9.03%)		 142:56:56
(63.00%)		 00:00:00
(N/A)











Camera status (2025/09/09)



Return to index
Previous day Next day