PRIME Observation Log 2023/05/25

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: 2023/05/25
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 18:05:44
Morning 07:01:59
Science Observation
(Sun altitude < -10°)
Start 18:28:25
End 06:39:16
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 20:25:43
End 06:39:16


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 05:20:53 12:10:51 0.439
GB Time 00:00:00 10:13:33 0.000
Non-GB Time 05:20:53 01:57:17 2.736


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 5039 04:00:11 05:20:53 0.748


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FilterTest 50 00:02:23 00:21:30 0.111
Nonlinear 3789 03:00:36 03:05:06 0.976
background 1200 00:57:12 01:54:16 0.501


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OH 4 00:00:11 00:01:07 0.170
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 00:00:47 0.120
ZO 4 00:00:11 00:00:53 0.215
ZH 4 00:00:11 00:00:58 0.195
ZY 4 00:00:11 00:00:53 0.215
ZJ 4 00:00:11 00:00:56 0.204
NBJ 4993 03:57:59 05:00:19 0.792
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 00:10:20 0.018










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 93:17:57 298:50:49 0.312

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 1449:08:44 683:07:56 766:00:48 214:29:01 183:50:35 183:50:35 183:50:35 15:42:12
Observed 296:52:52
(20.49%)		 78:55:43
(11.55%)		 217:57:09
(28.45%)		 00:00:00
(0.00%)		 216:07:20
(117.56%)		 01:49:48
(1.00%)		 00:00:00
(0.00%)		 15:42:12
(N/A)
Remaining 1152:15:52
(79.51%)		 604:12:12
(88.45%)		 548:03:39
(71.55%)		 214:29:01
(100.00%)		 -33:43:16
(0.00%)		 182:00:46
(99.00%)		 183:50:35
(100.00%)		 00:00:00
(N/A)











Camera status (2023/05/25)