PRIME Observation Log 2025/03/17

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: 2025/03/17
Local observer: Yuki Satoh
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00007 +- 0.00112 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:13:40
Morning 06:16:31
Science Observation
(Sun altitude < -10°)
Start 19:35:05
End 05:55:04
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 00:55:05
End 05:55:04


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:54:14 10:19:58 0.958
GB Time 05:04:07 04:59:59 1.014
Non-GB Time 04:50:07 05:19:59 0.907


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 264 00:12:35 00:30:57 0.406
ALLSKY 5272 04:11:17 04:50:07 0.866
GB 3036 02:24:42 05:04:07 0.476
SAAO 1318 01:02:49 01:12:31 0.866
OU 1318 01:02:49 01:12:31 0.866
NASA 1318 01:02:49 01:12:31 0.866
ABC 1318 01:02:49 01:12:31 0.866


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 264 00:12:35 00:30:57 0.406
all_sky_grid 5272 04:11:17 04:50:07 0.866
Bulge 2988 02:22:25 04:58:21 0.477
SKY 48 00:02:17 00:05:45 0.397


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 4 00:00:11 00:00:22 0.503
FLAT OJ 72 00:03:25 00:11:01 0.311
field21416_test 28 00:01:20 00:09:00 0.148
field21416 40 00:01:54 00:03:47 0.503
field21417 40 00:01:54 00:03:47 0.503
field21418 40 00:01:54 00:03:47 0.503
field21419 40 00:01:54 00:03:47 0.503
field21420 40 00:01:54 00:03:47 0.503
field21421 40 00:01:54 00:03:50 0.497
field21422 40 00:01:54 00:03:50 0.497
field21423 44 00:02:05 00:03:50 0.547
field21424 80 00:03:48 00:03:52 0.983
field21425 80 00:03:48 00:04:18 0.886
field21690 80 00:03:48 00:03:47 1.007
field21691 80 00:03:48 00:03:47 1.007
field21692 80 00:03:48 00:03:47 1.007
field21693 80 00:03:48 00:03:47 1.007
field21694 80 00:03:48 00:03:47 1.007
field21695 80 00:03:48 00:03:50 0.994
field21696 80 00:03:48 00:03:50 0.995
field21697 80 00:03:48 00:03:52 0.983
field21698 80 00:03:48 00:03:52 0.983
field21699 80 00:03:48 00:03:52 0.983
field21700 80 00:03:48 00:03:47 1.007
field21701 80 00:03:48 00:03:47 1.007
field21702 80 00:03:48 00:03:47 1.007
field21703 80 00:03:48 00:03:47 1.007
field21704 80 00:03:48 00:03:47 1.007
field21705 80 00:03:48 00:03:47 1.007
field21706 80 00:03:48 00:03:47 1.007
field21707 80 00:03:48 00:03:52 0.983
field21708 80 00:03:48 00:03:52 0.983
field21709 80 00:03:48 00:03:50 0.995
field21710 80 00:03:48 00:03:52 0.982
field21711 80 00:03:48 00:03:52 0.983
field21712 80 00:03:48 00:03:47 1.007
field21713 80 00:03:48 00:03:47 1.007
field21714 80 00:03:48 00:03:47 1.007
field21715 80 00:03:48 00:03:47 1.007
field21716 80 00:03:48 00:03:47 1.007
field21717 80 00:03:48 00:03:47 1.007
field21718 80 00:03:48 00:03:47 1.007
field21719 80 00:03:48 00:03:50 0.994
field21720 80 00:03:48 00:05:47 0.658
field1799 80 00:03:48 00:03:47 1.007
field1948 80 00:03:48 00:04:46 0.800
field1949 80 00:03:48 00:03:52 0.983
field2102 80 00:03:48 00:03:47 1.007
field2103 80 00:03:48 00:03:50 0.995
field2262 80 00:03:48 00:03:50 0.995
field2263 80 00:03:48 00:03:50 0.995
field2427 80 00:03:48 00:03:50 0.995
field2428 80 00:03:48 00:03:52 0.983
field2597 80 00:03:48 00:03:50 0.995
field2598 80 00:03:48 00:03:50 0.995
field2772 80 00:03:48 00:03:47 1.007
field2773 80 00:03:48 00:03:47 1.007
field2774 80 00:03:48 00:03:52 0.983
field2953 80 00:03:48 00:03:50 0.995
field2954 80 00:03:48 00:03:50 0.995
field2955 80 00:03:48 00:03:52 0.983
field3140 80 00:03:48 00:03:50 0.995
field3141 80 00:03:48 00:03:55 0.971
field3928 80 00:03:48 00:03:50 0.995
field3929 80 00:03:48 00:03:50 0.995
field3930 80 00:03:48 00:03:47 1.007
field3931 80 00:03:48 00:03:50 0.995
field3932 80 00:03:48 00:03:50 0.995
field4138 80 00:03:48 00:03:50 0.995
field4139 80 00:03:48 00:05:11 0.735
field2264 40 00:01:54 00:03:47 0.503
field2265 40 00:01:54 00:03:47 0.503
field2266 40 00:01:54 00:03:50 0.497
field2429 40 00:01:54 00:03:47 0.503
field2430 40 00:01:54 00:05:00 0.381
GB63_dither OJ 48 00:02:17 00:04:35 0.498
GB62_dither OJ 48 00:02:17 00:04:35 0.498
GB61_dither OJ 96 00:04:34 00:09:11 0.498
GB60_dither OJ 96 00:04:34 00:09:11 0.498
GB59_dither OJ 96 00:04:34 00:09:08 0.501
GB58_dither OJ 64 00:03:03 00:10:52 0.281
GB57_dither OJ 48 00:02:17 00:04:35 0.498
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 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB80_dither OJ 48 00:02:17 00:04:38 0.493
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 00:04:41 0.488
GB94_dither OJ 48 00:02:17 00:04:38 0.493
GB93_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:35 0.498
GB91_dither OJ 48 00:02:17 00:04:38 0.493
GB108_dither OJ 48 00:02:17 00:04:32 0.503
GB109_dither OJ 48 00:02:17 00:04:41 0.488
GB110_dither OJ 48 00:02:17 00:04:38 0.493
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB112_dither OJ 48 00:02:17 00:04:38 0.493
GB113_dither OJ 48 00:02:17 00:04:38 0.493
GB114_dither OJ 48 00:02:17 00:04:43 0.484
GB131_dither OJ 48 00:02:17 00:04:41 0.488
GB130_dither OJ 48 00:02:17 00:04:38 0.493
GB129_dither OJ 44 00:02:05 00:04:41 0.448
GB128_dither OJ 48 00:02:17 00:04:38 0.493
GB127_dither OJ 48 00:02:17 00:04:38 0.493
GB126_dither OJ 48 00:02:17 00:04:43 0.484
GB125_dither OJ 48 00:02:17 00:04:46 0.479
GCsky 48 00:02:17 00:05:45 0.397
GB63_dither OH 48 00:02:17 00:04:52 0.470
GB62_dither OH 48 00:02:17 00:04:43 0.484
GB61_dither OH 48 00:02:17 00:04:43 0.484
GB60_dither OH 48 00:02:17 00:04:35 0.498
GB59_dither OH 48 00:02:17 00:04:41 0.488
GB58_dither OH 48 00:02:17 00:04:43 0.484
GB57_dither OH 48 00:02:17 00:04:38 0.493
GB74_dither OH 48 00:02:17 00:04:41 0.488
GB75_dither OH 48 00:02:17 00:04:43 0.484
GB76_dither OH 48 00:02:17 00:04:43 0.483
GB77_dither OH 48 00:02:17 00:04:41 0.488
GB78_dither OH 48 00:02:17 00:04:49 0.474
GB79_dither OH 48 00:02:17 00:07:23 0.309
GB80_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:21 0.484
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB95_dither OH 24 00:01:08 00:02:24 0.474
GB94_dither OH 24 00:01:08 00:02:21 0.484
GB93_dither OH 24 00:01:08 00:02:24 0.474
GB92_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:21 0.484
GB108_dither OH 24 00:01:08 00:02:21 0.484
GB109_dither OH 24 00:01:08 00:02:16 0.503
GB110_dither OH 24 00:01:08 00:02:21 0.483
GB111_dither OH 24 00:01:08 00:02:21 0.484
GB112_dither OH 24 00:01:08 00:02:21 0.484
GB113_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:24 0.474
GB131_dither OH 24 00:01:08 00:02:24 0.474
GB130_dither OH 24 00:01:08 00:02:21 0.484
GB129_dither OH 24 00:01:08 00:02:21 0.483
GB128_dither OH 24 00:01:08 00:02:21 0.484
GB127_dither OH 24 00:01:08 00:02:21 0.484
GB126_dither OH 24 00:01:08 00:02:21 0.484
GB125_dither OH 24 00:01:08 00:02:41 0.425
FLAT_test OH 4 00:00:11 00:00:25 0.448
FLAT OH 184 00:08:46 00:19:08 0.458










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 75:12:39 170:54:48 0.440

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 1776:38:12 914:09:42 862:28:29 241:29:34 206:59:38 206:59:38 206:59:38 94:58:18
Observed 232:42:51
(13.10%)		 47:28:18
(5.19%)		 185:14:32
(21.48%)		 17:36:18
(7.29%)		 47:28:07
(22.93%)		 106:26:22
(51.42%)		 13:43:43
(6.63%)		 94:58:18
(N/A)
Remaining 1543:55:20
(86.90%)		 866:41:24
(94.81%)		 677:13:56
(78.52%)		 223:53:16
(92.71%)		 159:31:30
(77.07%)		 100:33:15
(48.58%)		 193:15:54
(93.37%)		 00:00:00
(N/A)











Camera status (2025/03/17)