PRIME Observation Log 2024/07/20

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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: 2024/07/20
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 18:16:37
Morning 07:09:29
Science Observation
(Sun altitude < -10°)
Start 18:39:13
End 06:46:55
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:39:13
End 04:11:55


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 00:17:56 12:07:41 0.025
GB Time 00:00:00 09:32:41 0.000
Non-GB Time 00:17:56 02:34:59 0.116


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 12 00:00:34 00:17:56 0.032


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
rot_off_test 12 00:00:34 00:17:56 0.032


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
rot_off_test 12 00:00:34 00:17:56 0.032










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 198:09:29 338:21:39 0.586
May 236:01:56 372:40:23 0.633
Jun 55:37:22 370:51:24 0.150
Jul 48:52:41 245:07:00 0.199

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 1748:55:33 719:12:40 1029:42:53 288:19:12 247:07:53 247:07:53 247:07:53 88:24:01
Observed 942:55:54
(53.91%)		 422:32:35
(58.75%)		 520:23:18
(50.54%)		 03:37:34
(1.26%)		 397:53:19
(161.00%)		 118:52:24
(48.10%)		 00:00:00
(0.00%)		 88:24:01
(N/A)
Remaining 805:59:39
(46.09%)		 296:40:05
(41.25%)		 509:19:34
(49.46%)		 284:41:37
(98.74%)		 -151:14:35
(0.00%)		 128:15:28
(51.90%)		 247:07:53
(100.00%)		 00:00:00
(N/A)











Camera status (2024/07/20)