PRIME Observation Log 2023/05/20

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: 2023/05/20
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 18:07:58
Morning 06:58:57
Science Observation
(Sun altitude < -10°)
Start 18:30:29
End 06:36:24
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:45:22
End 06:36:24


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 05:45:41 12:05:55 0.476
GB Time 00:00:00 09:51:02 0.000
Non-GB Time 05:45:41 02:14:53 2.563


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 3345 02:39:26 05:45:41 0.461


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat 464 00:22:07 00:51:04 0.433
background 1544 01:13:35 02:41:52 0.455
FilterTest 74 00:03:31 00:46:55 0.075
Nonlinear 1263 01:00:12 01:25:49 0.701


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilight 464 00:22:07 00:51:04 0.433
NBJ 2815 02:14:10 04:14:37 0.527
OH 24 00:01:08 00:30:12 0.038
OY 4 00:00:11 00:00:53 0.215
OJ 4 00:00:11 00:00:53 0.215
OO 2 00:00:05 00:00:47 0.120
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 00:00:53 0.215
ZJ 4 00:00:11 00:00:56 0.204
NBY 4 00:00:11 00:00:56 0.204
NBH 4 00:00:11 00:00:56 0.204
NBO 4 00:00:11 00:00:56 0.204
DO 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 51:45:11 258:50:12 0.200
Mar 55:18:59 318:34:15 0.174
Apr 77:47:40 337:41:57 0.230
May 74:28:45 238:06:06 0.313

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 1460:41:54 705:18:34 755:23:19 211:30:31 181:17:35 181:17:35 181:17:35 14:55:46
Observed 278:03:40
(19.04%)		 75:54:57
(10.76%)		 202:08:42
(26.76%)		 00:00:00
(0.00%)		 200:18:54
(110.49%)		 01:49:48
(1.01%)		 00:00:00
(0.00%)		 14:55:46
(N/A)
Remaining 1182:38:14
(80.96%)		 629:23:36
(89.24%)		 553:14:37
(73.24%)		 211:30:31
(100.00%)		 -20:58:42
(0.00%)		 179:27:47
(98.99%)		 181:17:35
(100.00%)		 00:00:00
(N/A)











Camera status (2023/05/20)