PRIME Observation Log 2023/05/04

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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: 2023/05/04
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 18:18:51
Morning 06:48:35
Science Observation
(Sun altitude < -10°)
Start 18:40:49
End 06:26:35
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 21:48:16
End 06:26:35


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:38:02 11:45:46 0.564
GB Time 03:48:40 08:38:18 0.441
Non-GB Time 02:49:21 03:07:27 0.903


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 872 00:41:33 02:49:21 0.245
GB 1304 01:02:09 03:48:40 0.272


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Twilght 764 00:36:25 01:18:30 0.464
SKY 108 00:05:08 01:30:50 0.057
bulge 1304 01:02:09 03:48:40 0.272


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Flat 764 00:36:25 01:18:30 0.464
GCsky 108 00:05:08 01:30:50 0.057
GB12 OY 48 00:02:17 00:04:48 0.476
GB13 OY 48 00:02:17 00:04:48 0.476
GB14 OY 96 00:04:34 00:33:13 0.138
GB21 OY 48 00:02:17 00:04:45 0.481
GB20 OY 48 00:02:17 00:04:45 0.481
GB19 OY 48 00:02:17 00:04:48 0.476
GB18 OY 48 00:02:17 00:04:48 0.476
GB17 OY 48 00:02:17 00:04:48 0.476
GB16 OY 48 00:02:17 00:04:48 0.476
GB15 OY 120 00:05:43 00:59:52 0.096
GB22 OY 48 00:02:17 00:04:54 0.467
GB23 OY 48 00:02:17 00:04:54 0.467
GB24 OY 48 00:02:17 00:05:07 0.446
GB26 OY 48 00:02:17 00:05:21 0.427
GB28 OY 48 00:02:17 00:06:56 0.330
GB27 OY 48 00:02:17 00:06:53 0.332
GB25 OY 52 00:02:28 00:05:13 0.475
GB35 OY 48 00:02:17 00:04:45 0.481
GB34 OY 48 00:02:17 00:04:48 0.476
GB33 OY 48 00:02:17 00:04:45 0.481
GB32 OY 48 00:02:17 00:04:48 0.476
GB31 OY 48 00:02:17 00:04:45 0.481
GB30 OY 48 00:02:17 00:04:45 0.481
GB29 OY 76 00:03:37 00:29:12 0.124










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 77:47:40 337:41:57 0.230
May 14:32:46 46:54:16 0.310

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 1496:21:50 764:31:15 731:50:35 204:54:57 175:38:32 175:38:32 175:38:32 14:55:46
Observed 218:07:41
(14.58%)		 60:51:42
(7.96%)		 157:15:59
(21.49%)		 00:00:00
(0.00%)		 155:26:10
(88.50%)		 01:49:48
(1.04%)		 00:00:00
(0.00%)		 14:55:46
(N/A)
Remaining 1278:14:09
(85.42%)		 703:39:33
(92.04%)		 574:34:35
(78.51%)		 204:54:57
(100.00%)		 20:12:21
(11.50%)		 173:48:43
(98.96%)		 175:38:32
(100.00%)		 00:00:00
(N/A)











Camera status (2023/05/04)