PRIME Observation Log 2023/02/21

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: 2023/02/21
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 19:44:05
Morning 05:56:55
Science Observation
(Sun altitude < -10°)
Start 20:06:27
End 05:34:33
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 02:31:20
End 05:34:33


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 00:31:03 09:28:06 0.055
GB Time 00:00:00 03:03:13 0.000
Non-GB Time 00:31:03 06:24:53 0.081


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 50 00:02:23 00:31:03 0.077


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FilterTest 50 00:02:23 00:31:03 0.077


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OH 4 00:00:11 00:00:58 0.194
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 00:05:00 0.019
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 00:04:02 0.047
NBJ 4 00:00:11 00:00:56 0.204
NBO 4 00:00:11 00:12:09 0.016
NBH 4 00:00:11 00:00:58 0.194
NBY 4 00:00:11 00:01:35 0.120
DY 4 00:00:11 00:00:41 0.276










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 16:30:30 191:33:43 0.086

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 1698:41:11 916:35:48 782:05:22 218:59:06 187:42:05 187:42:05 187:42:05 00:00:00
Observed 35:13:33
(2.07%)		 00:00:00
(0.00%)		 35:13:33
(4.50%)		 00:00:00
(0.00%)		 33:27:57
(17.83%)		 01:45:35
(0.94%)		 00:00:00
(0.00%)		 00:00:00
(N/A)
Remaining 1663:27:37
(97.93%)		 916:35:48
(100.00%)		 746:51:49
(95.50%)		 218:59:06
(100.00%)		 154:14:07
(82.17%)		 185:56:30
(99.06%)		 187:42:05
(100.00%)		 00:00:00
(N/A)











Camera status (2023/02/21)