PRIME Observation Log 2023/01/20

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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: 2023/01/20
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 1.59741 +- 0.48495 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:10:15
Morning 05:25:36
Science Observation
(Sun altitude < -10°)
Start 20:34:48
End 05:01:03
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 04:37:07
End 05:01:03


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 02:04:16 08:26:15 0.245
GB Time 00:00:00 00:23:55 0.000
Non-GB Time 02:04:16 08:02:19 0.258


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 202 00:09:37 02:04:16 0.077


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT 100 00:04:46 00:35:48 0.133
StandardStar 42 00:02:00 01:02:20 0.032
SKY 10 00:00:28 00:06:47 0.070
FilterTest 50 00:02:23 00:19:19 0.123


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilight 100 00:04:46 00:35:48 0.133
LP944-20 52 00:02:28 01:09:08 0.036
OH 4 00:00:11 00:02:08 0.089
OY 4 00:00:11 00:00:58 0.194
OJ 4 00:00:11 00:00:58 0.194
OO 2 00:00:05 00:05:59 0.016
ZO 4 00:00:11 00:00:58 0.194
ZH 4 00:00:11 00:01:01 0.185
ZY 4 00:00:11 00:00:58 0.194
ZJ 4 00:00:11 00:01:18 0.146
NBO 4 00:00:11 00:00:58 0.194
NBH 4 00:00:11 00:01:01 0.185
NBY 4 00:00:11 00:00:58 0.194
NBJ 4 00:00:11 00:01:15 0.151
DO 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 02:52:38 164:39:51 0.017

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 1809:27:14 944:59:00 864:28:13 242:03:06 207:28:22 207:28:22 207:28:22 00:00:00
Observed 02:52:38
(0.16%)		 00:00:00
(0.00%)		 02:52:38
(0.33%)		 00:00:00
(0.00%)		 02:52:38
(1.39%)		 00:00:00
(0.00%)		 00:00:00
(0.00%)		 00:00:00
(N/A)
Remaining 1806:34:35
(99.84%)		 944:59:00
(100.00%)		 861:35:34
(99.67%)		 242:03:06
(100.00%)		 204:35:43
(98.61%)		 207:28:22
(100.00%)		 207:28:22
(100.00%)		 00:00:00
(N/A)











Camera status (2023/01/20)