PRIME Observation Log 2024/04/22

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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: 2024/04/22
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 18:29:29
Morning 06:41:06
Science Observation
(Sun altitude < -10°)
Start 18:51:06
End 06:19:26
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 22:32:32
End 06:19:26


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 04:44:07 11:28:19 0.413
GB Time 00:00:00 07:46:53 0.000
Non-GB Time 04:44:07 03:41:25 1.283


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 80 00:03:48 00:07:02 0.541
OU 4275 03:23:46 04:44:07 0.717


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
EVENING_TWILIGHT 80 00:03:48 00:07:02 0.541
Dark 8 00:00:22 00:05:33 0.069
Reduction 40 00:01:54 00:05:09 0.370
Superbias 400 00:19:04 00:29:53 0.638
SourceTest 960 00:45:45 01:35:29 0.479
NLC 2838 02:15:16 02:19:30 0.970
Sourcetest 29 00:01:22 00:08:31 0.162


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT 80 00:03:48 00:07:02 0.541
test 8 00:00:22 00:05:33 0.069
DY 440 00:20:58 00:35:02 0.599
NBH 3827 03:02:25 04:03:32 0.749










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 136:44:23 245:37:21 0.557

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 1887:40:01 889:00:16 998:39:44 279:37:31 239:40:44 239:40:44 239:40:44 67:07:25
Observed 540:58:48
(28.66%)		 138:55:36
(15.63%)		 402:03:11
(40.26%)		 03:37:34
(1.30%)		 347:04:12
(144.81%)		 51:21:25
(21.43%)		 00:00:00
(0.00%)		 67:07:25
(N/A)
Remaining 1346:41:12
(71.34%)		 750:04:39
(84.37%)		 596:36:32
(59.74%)		 275:59:56
(98.70%)		 -108:36:33
(0.00%)		 188:19:19
(78.57%)		 239:40:44
(100.00%)		 00:00:00
(N/A)











Camera status (2024/04/22)