PRIME Observation Log 2024/08/20

Return to index
Previous day Next day

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: 2024/08/20
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 118.37381 +- 0.12406 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:35:21
Morning 06:44:02
Science Observation
(Sun altitude < -10°)
Start 18:56:59
End 06:22:27
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:56:59
End 02:10:02


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 01:23:19 11:25:28 0.122
GB Time 01:23:19 07:13:03 0.192
Non-GB Time 00:00:00 04:12:25 0.000


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 280 00:13:20 00:25:23 0.526
GB 884 00:42:08 01:23:19 0.506


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 280 00:13:20 00:25:23 0.526
Bulge 860 00:40:59 01:20:44 0.508
SKY 24 00:01:08 00:02:35 0.443


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OJ 280 00:13:20 00:25:23 0.526
GB63_test OH 20 00:00:57 00:04:22 0.218
GB63 OH 24 00:01:08 00:02:33 0.448
GB62 OH 24 00:01:08 00:02:05 0.549
GB61 OH 24 00:01:08 00:02:05 0.549
GB60 OH 24 00:01:08 00:02:07 0.536
GB59 OH 24 00:01:08 00:02:07 0.536
GB58 OH 24 00:01:08 00:02:07 0.537
GB57 OH 24 00:01:08 00:02:05 0.548
GB74 OH 24 00:01:08 00:02:05 0.548
GB75 OH 24 00:01:08 00:02:07 0.536
GB76 OH 24 00:01:08 00:02:07 0.537
GB77 OH 24 00:01:08 00:02:10 0.525
GB78 OH 24 00:01:08 00:02:10 0.525
GB79 OH 24 00:01:08 00:02:07 0.537
GB80 OH 24 00:01:08 00:02:10 0.525
GB97 OH 24 00:01:08 00:02:07 0.536
GB96 OH 24 00:01:08 00:02:07 0.537
GB95 OH 24 00:01:08 00:02:07 0.536
GB94 OH 24 00:01:08 00:02:07 0.536
GB93 OH 24 00:01:08 00:02:07 0.536
GB92 OH 24 00:01:08 00:02:07 0.536
GB91 OH 24 00:01:08 00:02:07 0.536
GB108 OH 24 00:01:08 00:02:07 0.537
GB109 OH 24 00:01:08 00:02:07 0.536
GB110 OH 24 00:01:08 00:02:05 0.548
GB111 OH 24 00:01:08 00:02:07 0.536
GB112 OH 24 00:01:08 00:02:10 0.525
GB113 OH 24 00:01:08 00:02:10 0.525
GB114 OH 24 00:01:08 00:02:10 0.525
GB131 OH 24 00:01:08 00:02:13 0.514
GB130 OH 24 00:01:08 00:02:13 0.514
GB129 OH 24 00:01:08 00:02:10 0.525
GB128 OH 24 00:01:08 00:02:10 0.525
GB127 OH 24 00:01:08 00:02:07 0.537
GB126 OH 24 00:01:08 00:02:07 0.536
GB125 OH 24 00:01:08 00:03:06 0.367
GCsky 24 00:01:08 00:02:35 0.443










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 145:14:59 233:23:15 0.622

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 1792:44:31 747:00:52 1045:43:38 292:48:13 250:58:28 250:58:28 250:58:28 109:51:46
Observed 1169:32:24
(65.24%)		 579:41:32
(77.60%)		 589:50:52
(56.41%)		 17:42:19
(6.05%)		 416:15:24
(165.86%)		 141:48:23
(56.50%)		 14:04:44
(5.61%)		 109:51:46
(N/A)
Remaining 623:12:06
(34.76%)		 167:19:20
(22.40%)		 455:52:46
(43.59%)		 275:05:53
(93.95%)		 -166:43:04
(0.00%)		 109:10:05
(43.50%)		 236:53:43
(94.39%)		 00:00:00
(N/A)











Camera status (2024/08/20)