PRIME Observation Log 2025/01/22

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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: 2025/01/22
Local observer: Ryusei Hamada
Remote observer: #
Weather: clear
Comment:
Detector Temperature: 122.08206 +- 0.07375 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:09:06
Morning 05:28:09
Science Observation
(Sun altitude < -10°)
Start 20:33:28
End 05:03:47
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 04:27:22
End 05:03:47


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 04:59:40 08:30:18 0.587
GB Time 00:00:00 00:36:25 0.000
Non-GB Time 04:59:40 07:53:53 0.632


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 341 00:16:15 00:55:55 0.291
NASA 2281 01:48:43 03:40:25 0.493
OU 564 00:26:53 01:03:59 0.420
ALLSKY 144 00:06:51 00:30:29 0.225
SAAO 36 00:01:42 00:07:37 0.225
ABC 36 00:01:42 00:07:37 0.225


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 124 00:05:54 00:20:48 0.284
test 217 00:10:20 00:35:06 0.295
all_sky_grid 2389 01:53:52 04:03:18 0.468
ToO 528 00:25:10 00:56:22 0.446


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test ZO 4 00:00:11 00:01:18 0.145
FLAT ZO 120 00:05:43 00:19:29 0.293
focus 217 00:10:20 00:35:06 0.295
field3833_test 28 00:01:20 00:07:55 0.168
field3833 49 00:02:20 00:03:58 0.587
field3834 49 00:02:20 00:04:01 0.580
field3629 49 00:02:20 00:03:58 0.587
field3630 49 00:02:20 00:04:07 0.567
field3433 49 00:02:20 00:05:42 0.409
field3631 49 00:02:20 00:03:58 0.587
field3632 49 00:02:20 00:03:58 0.587
field3835 49 00:02:20 00:04:07 0.567
field3836 49 00:02:20 00:04:01 0.580
field4043 49 00:02:20 00:03:58 0.587
field4044 49 00:02:20 00:03:53 0.601
field4256 49 00:02:20 00:03:58 0.587
field4257 49 00:02:20 00:03:58 0.587
field4474 49 00:02:20 00:03:56 0.594
field4475 49 00:02:20 00:04:07 0.567
field4478 49 00:02:20 00:03:58 0.587
field4477 49 00:02:20 00:04:01 0.580
field4476 49 00:02:20 00:03:58 0.587
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 00:04:01 0.580
field4046 49 00:02:20 00:03:58 0.587
field4047 49 00:02:20 00:04:04 0.573
field4045 49 00:02:20 00:03:58 0.587
field3838 49 00:02:20 00:06:07 0.381
field4688_test 8 00:00:22 00:09:12 0.041
field4688 24 00:01:08 00:01:45 0.652
field4689 24 00:01:08 00:01:42 0.669
field4690 24 00:01:08 00:01:50 0.619
field4467 24 00:01:08 00:01:45 0.652
field4468 24 00:01:08 00:01:45 0.652
field4249 24 00:01:08 00:01:45 0.652
field4250 24 00:01:08 00:01:45 0.652
field4036 24 00:01:08 00:01:48 0.635
field4037 24 00:01:08 00:01:45 0.652
field3828 24 00:01:08 00:01:45 0.652
field3829 24 00:01:08 00:01:48 0.635
field3830 24 00:01:08 00:01:45 0.652
field3625 24 00:01:08 00:01:45 0.652
field3626 24 00:01:08 00:01:45 0.652
field3627 24 00:01:08 00:01:45 0.652
field3628 24 00:01:08 00:01:48 0.635
field3831 24 00:01:08 00:01:48 0.635
field3832 24 00:01:08 00:01:48 0.635
field4038 24 00:01:08 00:01:45 0.652
field4039 24 00:01:08 00:01:48 0.635
field4040 24 00:01:08 00:01:48 0.635
field4251 24 00:01:08 00:01:45 0.652
field4252 24 00:01:08 00:01:48 0.635
field4253 24 00:01:08 00:01:48 0.635
field4469 24 00:01:08 00:01:45 0.652
field4470 24 00:01:08 00:01:48 0.635
field4691 24 00:01:08 00:01:42 0.669
field4692 24 00:01:08 00:01:48 0.635
field4471 24 00:01:08 00:01:45 0.652
field4472 24 00:01:08 00:01:45 0.652
field4473 24 00:01:08 00:01:45 0.652
field4254 24 00:01:08 00:01:45 0.652
field4255 24 00:01:08 00:04:08 0.276
field13318_test 28 00:01:20 00:08:29 0.157
field13318 500 00:23:50 00:47:52 0.498
field4041_test 16 00:00:45 00:06:50 0.111
field4041 24 00:01:08 00:01:50 0.619
field4042 24 00:01:08 00:01:42 0.669
field3631_test 4 00:00:11 00:02:17 0.083
field3837 24 00:01:08 00:01:48 0.635
field3635 24 00:01:08 00:01:45 0.652
field3634 24 00:01:08 00:01:45 0.652
field3633 24 00:01:08 00:01:48 0.635
field3435 24 00:01:08 00:02:01 0.566
field3436_test 4 00:00:11 00:09:01 0.021
field8596_test 20 00:00:57 00:06:17 0.152
field8596 40 00:01:54 00:03:55 0.485
field8597 24 00:01:08 00:05:46 0.198
field8598 20 00:00:57 00:01:59 0.480
field8599 40 00:01:54 00:12:31 0.152










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 103:31:40 181:50:53 0.569

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 1901:30:12 944:17:02 957:13:10 268:01:17 229:43:57 229:43:57 229:43:57 13:50:53
Observed 103:31:41
(5.44%)		 00:00:00
(0.00%)		 103:31:41
(10.82%)		 02:22:46
(0.89%)		 23:44:47
(10.34%)		 75:01:21
(32.66%)		 02:22:46
(1.04%)		 13:50:53
(N/A)
Remaining 1797:58:31
(94.56%)		 944:17:02
(100.00%)		 853:41:29
(89.18%)		 265:38:31
(99.11%)		 205:59:10
(89.66%)		 154:42:35
(67.34%)		 227:21:11
(98.96%)		 00:00:00
(N/A)











Camera status (2025/01/22)