PRIME Observation Log 2023/02/24

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: 2023/02/24
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 0.00000 +- 0.00000 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:40:39
Morning 05:59:33
Science Observation
(Sun altitude < -10°)
Start 20:02:51
End 05:37:21
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 02:19:32
End 05:37:21


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 01:01:33 09:34:30 0.107
GB Time 00:00:00 03:17:48 0.000
Non-GB Time 01:01:33 06:16:41 0.163


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 80 00:03:48 00:13:06 0.291
OU 317 00:15:06 01:01:33 0.245


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilight 80 00:03:48 00:13:06 0.291
FilterTest 78 00:03:43 00:33:59 0.109
FocusCheck 28 00:01:20 00:17:00 0.078
Test 211 00:10:03 00:10:33 0.953


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat OH 80 00:03:48 00:13:06 0.291
OH 215 00:10:14 00:11:29 0.892
OY 4 00:00:11 00:00:53 0.215
OJ 4 00:00:11 00:00:56 0.204
OO 2 00:00:05 00:03:59 0.024
ZO 4 00:00:11 00:00:56 0.204
ZH 4 00:00:11 00:00:58 0.194
ZY 4 00:00:11 00:00:56 0.204
ZJ 4 00:00:11 00:04:27 0.043
NBJ 12 00:00:34 00:04:11 0.136
NBO 8 00:00:22 00:01:49 0.209
NBH 8 00:00:22 00:07:20 0.052
NBY 8 00:00:22 00:04:30 0.085
DY 8 00:00:22 00:01:22 0.276
DJ 4 00:00:11 00:00:41 0.276
test 28 00:01:20 00:17:00 0.078










Stats so far in 2023
Monthly observed fraction so far in 2023
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 18:43:03 259:20:03 0.072
Feb 28:55:39 220:10:50 0.131

Observed time so far in 2023
- Total time of each institute is calculated by the following
    [All observation time in 2023] = [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 2023] = [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 2023] = [All observation time in 2023] - [GB observation time in 2023]
    
    [OU, NASA, ABC time in 2023] = 0.24 x [Non-GB observation time in 2023]
    [SAAO time in 2023] = 0.28 x [Non-GB observation time in 2023]
    
- 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 1696:47:47 915:48:33 780:59:13 218:40:35 187:26:12 187:26:12 187:26:12 01:03:08
Observed 47:38:42
(2.81%)		 04:02:10
(0.44%)		 43:36:32
(5.58%)		 00:00:00
(0.00%)		 41:50:56
(22.33%)		 01:45:35
(0.94%)		 00:00:00
(0.00%)		 01:03:08
(N/A)
Remaining 1649:09:04
(97.19%)		 911:46:22
(99.56%)		 737:22:41
(94.42%)		 218:40:35
(100.00%)		 145:35:16
(77.67%)		 185:40:37
(99.06%)		 187:26:12
(100.00%)		 00:00:00
(N/A)











Camera status (2023/02/24)