PRIME Observation Log 2025/05/09

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: 2025/05/09
Local observer:
Remote observer: Asahi Idei, Ryo Ogawa
Weather: clear
Comment:
Detector Temperature: 113.79566 +- 0.03975 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:14:28
Morning 06:52:13
Science Observation
(Sun altitude < -10°)
Start 18:36:37
End 06:30:01
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 21:26:43
End 06:30:01


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 00:58:30 11:53:24 0.082
GB Time 00:00:00 09:03:18 0.000
Non-GB Time 00:58:30 02:50:06 0.344


Institute Statistics
- ALLSKY time is equally distributed to each institute
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 208 00:09:54 00:32:54 0.301
SAAO 91 00:04:20 00:14:37 0.297
OU 91 00:04:20 00:14:37 0.297
NASA 91 00:04:20 00:14:37 0.297
ABC 91 00:04:20 00:14:37 0.297


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 208 00:09:54 00:32:54 0.301
all_sky_grid 364 00:17:21 00:58:30 0.297


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OY 8 00:00:22 00:03:33 0.107
FLAT OY 200 00:09:32 00:29:21 0.325
field23152_test 8 00:00:22 00:02:40 0.143
field23152 40 00:01:54 00:04:01 0.474
field23153 40 00:01:54 00:04:01 0.474
field23154 40 00:01:54 00:04:01 0.474
field23155 40 00:01:54 00:12:42 0.150
field23156 40 00:01:54 00:05:00 0.381
field23157_test 12 00:00:34 00:03:14 0.177
field23157 40 00:01:54 00:04:20 0.438
field15546 72 00:03:25 00:08:38 0.397
field15546_test 8 00:00:22 00:02:20 0.163
field15547 12 00:00:34 00:02:21 0.243
field15547_test 12 00:00:34 00:05:08 0.111










Stats so far in 2025
Monthly observed fraction so far in 2025
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 103:35:29 259:42:08 0.399
Feb 53:54:42 259:20:18 0.208
Mar 158:57:47 319:07:20 0.498
Apr 161:02:39 338:08:53 0.476
May 75:26:18 106:10:44 0.710

Observed time so far in 2025
- Total time of each institute is calculated by the following
    [All observation time in 2025] = [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 2025] = [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 2025] = [All observation time in 2025] - [GB observation time in 2025]
    
    [OU, NASA, ABC time in 2025] = 0.24 x [Non-GB observation time in 2025]
    [SAAO time in 2025] = 0.28 x [Non-GB observation time in 2025]
    
- 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 1800:36:12 915:23:20 885:12:51 247:51:36 212:27:05 212:27:05 212:27:05 134:40:08
Observed 552:56:56
(30.71%)		 236:08:00
(25.80%)		 316:48:56
(35.79%)		 45:42:07
(18.44%)		 74:27:56
(35.05%)		 155:55:19
(73.39%)		 40:43:32
(19.17%)		 134:40:08
(N/A)
Remaining 1247:39:15
(69.29%)		 679:15:19
(74.20%)		 568:23:55
(64.21%)		 202:09:28
(81.56%)		 137:59:09
(64.95%)		 56:31:45
(26.61%)		 171:43:32
(80.83%)		 00:00:00
(N/A)











Camera status (2025/05/09)



Return to index
Previous day Next day