PRIME Observation Log 2024/04/21

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: 2024/04/21
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 18:30:32
Morning 06:40:26
Science Observation
(Sun altitude < -10°)
Start 18:52:08
End 06:18:48
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 22:36:28
End 06:18:48


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 03:03:07 11:26:40 0.267
GB Time 00:00:00 07:42:19 0.000
Non-GB Time 03:03:07 03:44:20 0.816


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 2495 01:58:55 03:03:07 0.649


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Sourcetest 192 00:09:09 00:37:09 0.246
Reduction 40 00:01:54 00:05:00 0.380
Superbias 400 00:19:04 00:26:30 0.719
SourceTest 600 00:28:36 00:51:53 0.551
NLC 1263 01:00:12 01:02:33 0.962


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
ZO 1888 01:29:59 02:17:36 0.654
DY 440 00:20:58 00:31:31 0.665
OH 138 00:06:34 00:12:06 0.543
NBH 29 00:01:22 00:01:52 0.734










Stats so far in 2024
Monthly observed fraction so far in 2024
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 133:42:32 259:10:04 0.516
Feb 136:23:26 268:21:08 0.508
Mar 134:08:27 319:22:49 0.420
Apr 132:00:15 234:09:02 0.564

Observed time so far in 2024
- Total time of each institute is calculated by the following
    [All observation time in 2024] = [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 2024] = [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 2024] = [All observation time in 2024] - [GB observation time in 2024]
    
    [OU, NASA, ABC time in 2024] = 0.24 x [Non-GB observation time in 2024]
    [SAAO time in 2024] = 0.28 x [Non-GB observation time in 2024]
    
- 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 1888:40:03 892:53:43 995:46:19 278:48:58 238:59:07 238:59:07 238:59:07 67:00:23
Observed 536:14:40
(28.39%)		 138:55:36
(15.56%)		 397:19:03
(39.90%)		 03:37:34
(1.30%)		 342:20:04
(143.24%)		 51:21:25
(21.49%)		 00:00:00
(0.00%)		 67:00:23
(N/A)
Remaining 1352:25:22
(71.61%)		 753:58:06
(84.44%)		 598:27:15
(60.10%)		 275:11:23
(98.70%)		 -104:39:04
(0.00%)		 187:37:41
(78.51%)		 238:59:07
(100.00%)		 00:00:00
(N/A)











Camera status (2024/04/21)