PRIME Observation Log 2026/02/06

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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: 2026/02/06
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 111.99994 +- 0.00106 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:58:55
Morning 05:43:03
Science Observation
(Sun altitude < -10°)
Start 20:22:13
End 05:19:45
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 03:29:25
End 05:19:45


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 06:11:23 08:57:32 0.691
GB Time 01:52:51 01:50:20 1.023
Non-GB Time 04:18:31 07:07:12 0.605


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.)
SAAO 1316 01:02:43 01:49:50 0.571
GB 1108 00:52:48 01:52:51 0.468
CALIB 40 00:01:54 00:03:40 0.518
OU 456 00:21:44 00:49:33 0.439
NASA 456 00:21:44 00:49:33 0.439
ABC 456 00:21:44 00:49:33 0.439


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 2684 02:07:56 04:18:31 0.495
Bulge 1060 00:50:31 01:46:07 0.476
SKY 48 00:02:17 00:06:44 0.339
TWILIGHT 40 00:01:54 00:03:40 0.518


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field11466_test 8 00:00:22 00:04:35 0.083
field11466 60 00:02:51 00:05:46 0.495
field11467 60 00:02:51 00:05:43 0.499
field11468 60 00:02:51 00:05:43 0.499
field11469 60 00:02:51 00:05:46 0.495
field11470 60 00:02:51 00:05:46 0.495
field11471 60 00:02:51 00:05:46 0.495
field11472 60 00:02:51 00:05:54 0.484
field11473 60 00:02:51 00:05:46 0.495
field11474 60 00:02:51 00:05:46 0.495
field11475 60 00:02:51 00:07:18 0.391
field11770 60 00:02:51 00:05:43 0.499
field11771 60 00:02:51 00:05:43 0.499
field11772 60 00:02:51 00:05:43 0.499
field11773 60 00:02:51 00:05:59 0.477
field11774_test 16 00:00:45 00:13:22 0.057
field11774 60 00:02:51 00:05:46 0.495
field11775 60 00:02:51 00:05:43 0.499
field11776 60 00:02:51 00:05:43 0.499
field11777 60 00:02:51 00:05:40 0.503
field11778 60 00:02:51 00:05:40 0.503
field11779 60 00:02:51 00:05:46 0.495
field12076 60 00:02:51 00:05:40 0.503
field12077 60 00:02:51 00:05:40 0.503
field12078 60 00:02:51 00:05:40 0.503
field12079 60 00:02:51 00:05:40 0.503
field12080 60 00:02:51 00:05:43 0.499
field12081 60 00:02:51 00:05:43 0.499
field12082 60 00:02:51 00:05:43 0.499
field12083 60 00:02:51 00:05:46 0.495
field12084 60 00:02:51 00:05:46 0.495
field12085 60 00:02:51 00:11:56 0.240
field805_test 24 00:01:08 00:07:15 0.158
field805 836 00:39:50 00:53:01 0.752
GB83_test OJ 4 00:00:11 00:01:49 0.104
GB83_dither OJ 48 00:02:17 00:04:41 0.488
GB82_dither OJ 48 00:02:17 00:04:38 0.493
GB81_dither OJ 48 00:02:17 00:04:55 0.465
GB100_dither OJ 48 00:02:17 00:04:35 0.498
GB99_dither OJ 48 00:02:17 00:04:41 0.488
GB98_dither OJ 48 00:02:17 00:04:52 0.470
GB117_dither OJ 48 00:02:17 00:04:35 0.498
GB116_dither OJ 48 00:02:17 00:04:35 0.498
GB115_dither OJ 48 00:02:17 00:04:35 0.498
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:04:35 0.498
GB114_dither OJ 48 00:02:17 00:04:32 0.503
GB113_dither OJ 48 00:02:17 00:04:35 0.498
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:38 0.493
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB112_dither OJ 48 00:02:17 00:06:50 0.335
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB94_dither OJ 48 00:02:17 00:04:35 0.498
GB77_dither OJ 48 00:02:17 00:04:35 0.498
GB60_dither OJ 48 00:02:17 00:04:46 0.479
GCsky 48 00:02:17 00:06:44 0.339
FLAT ZO 40 00:01:54 00:03:40 0.518










Stats so far in 2026
Monthly observed fraction so far in 2026
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 55:55:01 259:31:55 0.215
Feb 22:49:21 53:15:43 0.428

Observed time so far in 2026
- Total time of each institute is calculated by the following
    [All observation time in 2026] = [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 2026] = [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 2026] = [All observation time in 2026] - [GB observation time in 2026]
    
    [OU, NASA, ABC time in 2026] = 0.24 x [Non-GB observation time in 2026]
    [SAAO time in 2026] = 0.28 x [Non-GB observation time in 2026]
    
- 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 1811:14:36 939:46:07 871:28:28 244:00:46 209:09:14 209:09:14 209:09:14 13:37:53
Observed 78:44:24
(4.35%)		 04:49:47
(0.51%)		 73:54:36
(8.48%)		 19:36:57
(8.04%)		 17:13:10
(8.23%)		 22:22:50
(10.70%)		 14:41:37
(7.03%)		 13:37:53
(N/A)
Remaining 1732:30:12
(95.65%)		 934:56:19
(99.49%)		 797:33:52
(91.52%)		 224:23:48
(91.96%)		 191:56:04
(91.77%)		 186:46:23
(89.30%)		 194:27:36
(92.97%)		 00:00:00
(N/A)











Camera status (2026/02/06)



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