PRIME Observation Log 2023/04/23

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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: 2023/04/23
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 18:29:14
Morning 06:41:16
Science Observation
(Sun altitude < -10°)
Start 18:50:52
End 06:19:36
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 22:31:31
End 06:19:36


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 02:28:57 11:28:43 0.216
GB Time 00:00:00 07:48:04 0.000
Non-GB Time 02:28:57 03:40:39 0.675


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 920 00:43:51 02:24:44 0.303
NASA 35 00:01:40 00:04:13 0.395


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FilterTest 155 00:07:23 01:12:53 0.101
background 800 00:38:08 01:16:04 0.501


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OH 16 00:00:45 00:24:19 0.031
OY 8 00:00:22 00:01:52 0.204
OJ 8 00:00:22 00:01:57 0.195
OO 4 00:00:11 00:05:59 0.032
ZO 8 00:00:22 00:01:52 0.204
ZH 8 00:00:22 00:02:00 0.190
ZY 8 00:00:22 00:01:52 0.204
ZJ 8 00:00:22 00:05:45 0.066
NBJ 808 00:38:30 01:19:25 0.485
NBY 8 00:00:22 00:01:37 0.235
NBH 8 00:00:22 00:01:52 0.204
NBO 8 00:00:22 00:09:36 0.040
DO 8 00:00:22 00:03:42 0.103
DY 39 00:01:51 00:05:09 0.361
DJ 4 00:00:11 00:01:12 0.157
DH 4 00:00:11 00:00:41 0.276










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 53:21:45 256:35:54 0.208

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 1521:23:18 796:57:16 724:26:02 202:50:29 173:51:51 173:51:51 173:51:51 14:55:46
Observed 179:09:00
(11.78%)		 47:52:32
(6.01%)		 131:16:28
(18.12%)		 00:00:00
(0.00%)		 129:26:39
(74.45%)		 01:49:48
(1.05%)		 00:00:00
(0.00%)		 14:55:46
(N/A)
Remaining 1342:14:18
(88.22%)		 749:04:43
(93.99%)		 593:09:34
(81.88%)		 202:50:29
(100.00%)		 44:25:11
(25.55%)		 172:02:02
(98.95%)		 173:51:51
(100.00%)		 00:00:00
(N/A)











Camera status (2023/04/23)