PRIME Observation Log 2025/01/09

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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: 2025/01/09
Local observer: Ryusei Hamada
Remote observer: #
Weather: clear
Comment:
Detector Temperature: 121.99979 +- 0.00204 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:12:59
Morning 05:15:29
Science Observation
(Sun altitude < -10°)
Start 20:38:12
End 04:50:17
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start --:--:--
End --:--:--


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 08:08:00 08:12:05 0.992
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 08:08:00 08:12:05 0.992


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 256 00:12:12 00:38:42 0.315
OU 1472 01:10:09 02:28:28 0.473
NASA 3656 02:54:16 05:39:32 0.513


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 256 00:12:12 00:38:42 0.315
all_sky_grid 5128 04:04:26 08:08:00 0.501


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 8 00:00:22 00:05:39 0.067
FLAT OJ 160 00:07:37 00:17:15 0.442
field7134_test 4 00:00:11 00:01:38 0.116
field10225_test 28 00:01:20 00:14:05 0.095
field10225 60 00:02:51 00:05:12 0.549
field10521 60 00:02:51 00:05:29 0.521
field10522 60 00:02:51 00:06:22 0.448
field10224 60 00:02:51 00:05:12 0.549
field9639 60 00:02:51 00:05:21 0.534
field9933 60 00:02:51 00:05:18 0.539
field10818 60 00:02:51 00:05:15 0.544
field11121 60 00:02:51 00:05:21 0.534
field9349 60 00:02:51 00:05:12 0.549
field9350 60 00:02:51 00:05:21 0.534
field9934 60 00:02:51 00:05:26 0.525
field9348 60 00:02:51 00:08:17 0.345
field10226 60 00:02:51 00:05:15 0.544
field9930 60 00:02:51 00:05:12 0.549
field9932 60 00:02:51 00:05:18 0.539
field10523 60 00:02:51 00:05:07 0.559
field10227 60 00:02:51 00:05:12 0.549
field10820 60 00:02:51 00:05:18 0.539
field9638 60 00:02:51 00:05:09 0.554
field9929 60 00:02:51 00:05:12 0.549
field10223 60 00:02:51 00:05:12 0.549
field9640 60 00:02:51 00:05:12 0.549
field10519 60 00:02:51 00:05:15 0.544
field10228 60 00:02:51 00:07:24 0.386
field4688_test 37 00:01:45 00:18:10 0.097
field4688 49 00:02:20 00:03:56 0.594
field4689 49 00:02:20 00:03:53 0.601
field4690 49 00:02:20 00:04:07 0.567
field4467 49 00:02:20 00:03:56 0.594
field4468 49 00:02:20 00:03:56 0.594
field4249 49 00:02:20 00:03:56 0.594
field4250 49 00:02:20 00:03:56 0.594
field4036 49 00:02:20 00:03:56 0.594
field4037 49 00:02:20 00:03:58 0.587
field3828 49 00:02:20 00:03:56 0.594
field3829 49 00:02:20 00:03:56 0.594
field3830 49 00:02:20 00:03:56 0.594
field3625 49 00:02:20 00:03:53 0.601
field3626 49 00:02:20 00:03:58 0.587
field3627 49 00:02:20 00:04:04 0.573
field3628 49 00:02:20 00:04:04 0.573
field3831 49 00:02:20 00:03:56 0.594
field3832 49 00:02:20 00:04:04 0.573
field4038 49 00:02:20 00:03:56 0.594
field4039 49 00:02:20 00:07:20 0.318
field4040 49 00:02:20 00:04:01 0.580
field4251 49 00:02:20 00:03:53 0.601
field4252 49 00:02:20 00:03:56 0.594
field4253 49 00:02:20 00:04:01 0.580
field4469 49 00:02:20 00:03:53 0.601
field4470 49 00:02:20 00:03:58 0.587
field4691 49 00:02:20 00:03:56 0.594
field4692 49 00:02:20 00:03:58 0.587
field4471 49 00:02:20 00:03:56 0.594
field4472 49 00:02:20 00:03:56 0.594
field4473 49 00:02:20 00:03:56 0.594
field4254 49 00:02:20 00:03:56 0.594
field4255 49 00:02:20 00:04:01 0.580
field4041 49 00:02:20 00:03:50 0.608
field4042 49 00:02:20 00:03:58 0.587
field3833 49 00:02:20 00:03:56 0.594
field3834 49 00:02:20 00:03:58 0.587
field3629 49 00:02:20 00:03:53 0.601
field3630 49 00:02:20 00:03:56 0.594
field3433 49 00:02:20 00:10:11 0.229
field4040_test 12 00:00:34 00:07:51 0.073
field3631 49 00:02:20 00:03:56 0.594
field3632 49 00:02:20 00:03:56 0.594
field3835 49 00:02:20 00:03:53 0.601
field3836 49 00:02:20 00:03:58 0.587
field4043 49 00:02:20 00:04:01 0.580
field4044 49 00:02:20 00:03:58 0.587
field4256 49 00:02:20 00:03:53 0.601
field4257 49 00:02:20 00:03:56 0.594
field4474 49 00:02:20 00:03:56 0.594
field4475 49 00:02:20 00:03:58 0.587
field4478 49 00:02:20 00:03:56 0.594
field4477 49 00:02:20 00:03:58 0.587
field4476 49 00:02:20 00:03:56 0.594
field4260 49 00:02:20 00:03:58 0.587
field4259 49 00:02:20 00:03:58 0.587
field4258 49 00:02:20 00:03:58 0.587
field4046 49 00:02:20 00:04:01 0.580
field4047 49 00:02:20 00:03:58 0.587
field4045 49 00:02:20 00:03:58 0.587
field3838 49 00:02:20 00:06:24 0.364
field3631_test 8 00:00:22 00:03:44 0.102
field3837 49 00:02:20 00:03:58 0.587
field3635 49 00:02:20 00:04:01 0.580
field3634 49 00:02:20 00:03:58 0.587
field3633 49 00:02:20 00:03:56 0.594
field3435 49 00:02:20 00:06:52 0.340
field3436 49 00:02:20 00:03:56 0.594
field3434 49 00:02:20 00:04:12 0.556
field3437 24 00:01:08 00:01:45 0.652
field3438 24 00:01:08 00:01:45 0.652
field3636 24 00:01:08 00:01:48 0.635
field3637 24 00:01:08 00:01:45 0.652
field3839 24 00:01:08 00:01:48 0.635
field3840 24 00:01:08 00:01:45 0.651
field3841 24 00:01:08 00:01:45 0.652
field4048 24 00:01:08 00:01:45 0.652
field4049 24 00:01:08 00:01:50 0.619
field4261 24 00:01:08 00:01:50 0.619
field4262 24 00:01:08 00:01:45 0.651
field4479 24 00:01:08 00:01:48 0.635
field4480 24 00:01:08 00:03:31 0.324
field3837_test 4 00:00:11 00:04:18 0.044
FLAT_test OY 8 00:00:22 00:08:41 0.044
FLAT OY 80 00:03:48 00:07:05 0.538










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 21:11:56 73:13:42 0.289

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 1873:29:02 945:33:18 927:55:44 259:49:12 222:42:10 222:42:10 222:42:10 02:21:03
Observed 21:11:56
(1.13%)		 00:00:00
(0.00%)		 21:11:56
(2.28%)		 00:00:00
(0.00%)		 02:28:28
(1.11%)		 18:43:27
(8.41%)		 00:00:00
(0.00%)		 02:21:03
(N/A)
Remaining 1852:17:06
(98.87%)		 945:33:18
(100.00%)		 906:43:48
(97.72%)		 259:49:12
(100.00%)		 220:13:42
(98.89%)		 203:58:42
(91.59%)		 222:42:10
(100.00%)		 00:00:00
(N/A)











Camera status (2025/01/09)



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