PRIME Observation Log 2024/09/20

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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: 2024/09/20
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 117.00083 +- 0.00438 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:54:09
Morning 06:05:02
Science Observation
(Sun altitude < -10°)
Start 19:15:32
End 05:43:41
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:15:32
End 00:08:08


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 00:00:00 10:28:08 0.000
GB Time 00:00:00 04:52:36 0.000
Non-GB Time 00:00:00 05:35:32 0.000


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 128 00:06:06 00:18:21 0.332
Calib 2264 01:47:55 02:24:30 0.747


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 124 00:05:54 00:14:23 0.411
calibration 2268 01:48:06 02:28:28 0.728


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT ZO 124 00:05:54 00:14:23 0.411
test 4 00:00:11 00:03:58 0.048
superbias 640 00:30:30 00:47:26 0.643
LSS_Z 160 00:07:37 00:15:34 0.490
NLC_Z 422 00:20:06 00:21:12 0.948
reset 40 00:01:54 00:04:09 0.458
LSS_H 160 00:07:37 00:14:34 0.523
NLC_H 842 00:40:08 00:41:32 0.966










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 130:29:33 377:18:50 0.346
Aug 207:54:50 357:10:27 0.582
Sep 140:45:53 215:32:46 0.653

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 1826:26:52 766:36:48 1059:50:04 296:45:13 254:21:37 254:21:37 254:21:37 124:01:17
Observed 1372:54:45
(75.17%)		 692:28:44
(90.33%)		 680:26:00
(64.20%)		 37:50:33
(12.75%)		 436:23:38
(171.57%)		 171:58:51
(67.61%)		 34:12:58
(13.45%)		 124:01:17
(N/A)
Remaining 453:32:07
(24.83%)		 74:08:03
(9.67%)		 379:24:03
(35.80%)		 258:54:40
(87.25%)		 -183:57:59
(0.00%)		 82:22:45
(32.39%)		 220:08:38
(86.55%)		 00:00:00
(N/A)











Camera status (2024/09/20)