PRIME Observation Log 2025/01/14

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Raw Log (Time is in SA time)
Ramp Log (Time is in UT)
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Observation Log (Time is in UT)

Date: 2025/01/14
Local observer: Ryusei Hamada
Remote observer: #
Weather: windy -> cloudy&rain
Comment:
Detector Temperature: 122.17147 +- 0.05779 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:12:06
Morning 05:20:12
Science Observation
(Sun altitude < -10°)
Start 20:37:01
End 04:55:17
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start --:--:--
End --:--:--


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 01:38:04 08:18:15 0.197
GB Time 00:00:00 00:00:00 0.000
Non-GB Time 01:38:04 08:18:15 0.197


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 84 00:04:00 00:17:45 0.225
NASA 1044 00:49:45 01:38:04 0.507


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 84 00:04:00 00:17:45 0.225
all_sky_grid 1044 00:49:45 01:38:04 0.507


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OY 4 00:00:11 00:00:50 0.225
FLAT OY 80 00:03:48 00:16:55 0.225
field2343_test 16 00:00:45 00:06:25 0.119
field2342 49 00:02:20 00:04:01 0.580
field2343 49 00:02:20 00:03:58 0.587
field2510 49 00:02:20 00:03:50 0.608
field2683 49 00:02:20 00:05:08 0.454
field3426_test 12 00:00:34 00:08:19 0.069
field3426 24 00:01:08 00:01:48 0.635
field3427 24 00:01:08 00:01:45 0.652
field3232 24 00:01:08 00:01:48 0.635
field3233 24 00:01:08 00:01:48 0.635
field3043 24 00:01:08 00:01:45 0.652
field3044 24 00:01:08 00:01:48 0.635
field2859 24 00:01:08 00:01:48 0.635
field2860 24 00:01:08 00:01:45 0.652
field2861 24 00:01:08 00:01:48 0.635
field2681 24 00:01:08 00:01:45 0.652
field2682 24 00:01:08 00:01:45 0.652
field2508 24 00:01:08 00:01:48 0.635
field2509 24 00:01:08 00:01:45 0.652
field2340 24 00:01:08 00:01:48 0.635
field2341 24 00:01:08 00:01:48 0.635
field2177 24 00:01:08 00:01:45 0.652
field2684 24 00:01:08 00:01:45 0.652
field2862 24 00:01:08 00:01:45 0.652
field2863 24 00:01:08 00:01:50 0.619
field3045 24 00:01:08 00:01:48 0.635
field3046 24 00:01:08 00:01:48 0.635
field3234 24 00:01:08 00:01:48 0.635
field3235 24 00:01:08 00:01:50 0.619
field3428 24 00:01:08 00:01:48 0.635
field3429 24 00:01:08 00:01:48 0.635
field3430 24 00:01:08 00:01:45 0.652
field3431 24 00:01:08 00:01:48 0.635
field3432 24 00:01:08 00:01:50 0.619
field3236 24 00:01:08 00:01:45 0.652
field3237 24 00:01:08 00:01:48 0.635
field3238 24 00:01:08 00:01:50 0.619
field3047 24 00:01:08 00:01:45 0.652
field3048 24 00:01:08 00:05:16 0.217
field2865 24 00:01:08 00:03:03 0.373
field2684_test 4 00:00:11 00:00:41 0.276










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 50:44:31 114:32:11 0.443

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 1882:22:23 945:33:18 936:49:04 262:18:32 224:50:10 224:50:10 224:50:10 06:49:08
Observed 50:44:31
(2.70%)		 00:00:00
(0.00%)		 50:44:31
(5.42%)		 00:31:51
(0.20%)		 10:41:59
(4.76%)		 38:58:49
(17.34%)		 00:31:51
(0.24%)		 06:49:08
(N/A)
Remaining 1831:37:52
(97.30%)		 945:33:18
(100.00%)		 886:04:33
(94.58%)		 261:46:41
(99.80%)		 214:08:11
(95.24%)		 185:51:21
(82.66%)		 224:18:19
(99.76%)		 00:00:00
(N/A)











Camera status (2025/01/14)



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