PRIME Observation Log 2023/04/19

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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: 2023/04/19
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 18:33:29
Morning 06:38:36
Science Observation
(Sun altitude < -10°)
Start 18:55:01
End 06:17:02
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 22:47:15
End 06:17:02


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:39:02 11:22:00 0.585
GB Time 02:00:35 07:29:47 0.268
Non-GB Time 04:38:27 03:52:13 1.199


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
OU 1776 01:24:39 04:38:27 0.304
GB 612 00:29:10 02:00:35 0.242


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
SKY 112 00:05:20 01:06:23 0.080
bulge 612 00:29:10 02:00:35 0.242
Twilght 364 00:17:21 00:49:49 0.348
FilterTest 100 00:04:46 00:43:42 0.109
background 1200 00:57:12 01:58:32 0.483


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GCsky 112 00:05:20 01:06:23 0.080
GB7 OY 72 00:03:25 00:26:41 0.129
GB6 OY 92 00:04:23 00:34:16 0.128
GB5 OY 48 00:02:17 00:04:48 0.476
GB4 OY 48 00:02:17 00:04:48 0.476
GB3 OY 48 00:02:17 00:04:48 0.476
GB2 OY 48 00:02:17 00:04:48 0.476
GB1 OY 48 00:02:17 00:10:27 0.219
GB8 OY 52 00:02:28 00:09:07 0.272
GB9 OY 48 00:02:17 00:04:48 0.476
GB10 OY 48 00:02:17 00:04:48 0.476
GB11 OY 48 00:02:17 00:04:51 0.471
GB12 OY 8 00:00:22 00:03:48 0.100
GB12 OH 4 00:00:11 00:02:30 0.076
Flat 364 00:17:21 00:49:49 0.348
OH 8 00:00:22 00:05:15 0.073
OY 8 00:00:22 00:01:52 0.204
OJ 8 00:00:22 00:01:52 0.204
OO 4 00:00:11 00:18:11 0.010
ZO 8 00:00:22 00:01:52 0.204
ZH 8 00:00:22 00:01:57 0.194
ZY 8 00:00:22 00:01:49 0.209
ZJ 8 00:00:22 00:01:22 0.276
NBJ 1208 00:57:34 02:00:24 0.478
NBY 8 00:00:22 00:01:52 0.204
NBH 8 00:00:22 00:01:52 0.204
NBO 8 00:00:22 00:02:30 0.152
DO 8 00:00:22 00:01:22 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 36:50:56 210:51:00 0.175

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 1527:44:56 812:19:42 715:25:14 200:19:04 171:42:03 171:42:03 171:42:03 14:55:46
Observed 162:38:10
(10.65%)		 47:52:32
(5.89%)		 114:45:38
(16.04%)		 00:00:00
(0.00%)		 113:00:03
(65.81%)		 01:45:35
(1.02%)		 00:00:00
(0.00%)		 14:55:46
(N/A)
Remaining 1365:06:46
(89.35%)		 764:27:10
(94.11%)		 600:39:36
(83.96%)		 200:19:04
(100.00%)		 58:42:00
(34.19%)		 169:56:28
(98.98%)		 171:42:03
(100.00%)		 00:00:00
(N/A)











Camera status (2023/04/19)