PRIME Observation Log 2026/01/30

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: 2026/01/30
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 111.56825 +- 0.03740 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 20:04:26
Morning 05:36:03
Science Observation
(Sun altitude < -10°)
Start 20:28:14
End 05:12:14
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 03:56:56
End 05:12:14


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 07:23:08 08:43:59 0.846
GB Time 00:00:00 01:15:18 0.000
Non-GB Time 07:23:08 07:28:41 0.988


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 60 00:02:51 00:18:12 0.157
SAAO 1115 00:53:08 01:50:47 0.480
OU 1115 00:53:08 01:50:47 0.480
NASA 1115 00:53:08 01:50:47 0.480
ABC 1115 00:53:08 01:50:47 0.480


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 60 00:02:51 00:18:12 0.157
all_sky_grid 4460 03:32:35 07:23:08 0.480


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OH 52 00:02:28 00:17:10 0.144
FLAT OH 8 00:00:22 00:01:01 0.373
field5187_test 20 00:00:57 00:07:27 0.128
field5187 60 00:02:51 00:05:49 0.491
field5188 60 00:02:51 00:05:43 0.499
field5189 60 00:02:51 00:06:17 0.455
field5190 60 00:02:51 00:05:57 0.480
field5191 60 00:02:51 00:05:49 0.491
field5192 60 00:02:51 00:05:46 0.495
field5193 60 00:02:51 00:05:49 0.491
field5194 60 00:02:51 00:06:14 0.458
field5195 60 00:02:51 00:05:52 0.487
field5196 60 00:02:51 00:05:46 0.495
field5197 60 00:02:51 00:06:28 0.442
field5422 60 00:02:51 00:05:40 0.503
field5423 60 00:02:51 00:05:40 0.503
field5424 60 00:02:51 00:05:43 0.499
field5425 60 00:02:51 00:05:40 0.503
field5426 60 00:02:51 00:05:40 0.503
field5427 60 00:02:51 00:05:40 0.503
field5428 60 00:02:51 00:05:40 0.503
field5429 60 00:02:51 00:05:40 0.503
field5430 60 00:02:51 00:05:40 0.503
field5431 60 00:02:51 00:05:40 0.503
field5432 60 00:02:51 00:07:33 0.379
field4956 60 00:02:51 00:05:46 0.495
field4957 60 00:02:51 00:05:46 0.495
field4958 60 00:02:51 00:05:43 0.499
field4959 60 00:02:51 00:05:43 0.499
field4960 60 00:02:51 00:05:46 0.495
field4961 60 00:02:51 00:05:46 0.495
field4962 60 00:02:51 00:05:46 0.495
field4963 60 00:02:51 00:05:43 0.499
field4964 60 00:02:51 00:05:52 0.487
field4965 60 00:02:51 00:05:46 0.495
field4966 60 00:02:51 00:05:46 0.495
field4967 60 00:02:51 00:07:10 0.399
field3083 60 00:02:51 00:05:52 0.487
field3084 60 00:02:51 00:05:46 0.495
field3085 60 00:02:51 00:05:46 0.495
field3086 60 00:02:51 00:05:43 0.499
field3087 60 00:02:51 00:05:52 0.487
field3088 60 00:02:51 00:05:43 0.499
field3089 60 00:02:51 00:05:46 0.495
field3090 60 00:02:51 00:05:43 0.499
field3091 60 00:02:51 00:05:43 0.499
field3092 60 00:02:51 00:05:46 0.495
field3093 60 00:02:51 00:05:46 0.495
field3094 60 00:02:51 00:05:46 0.495
field3095 60 00:02:51 00:05:46 0.495
field3096 60 00:02:51 00:07:10 0.399
field3272 60 00:02:51 00:05:46 0.495
field3273 60 00:02:51 00:05:43 0.499
field3274 60 00:02:51 00:05:46 0.495
field3275 60 00:02:51 00:05:43 0.499
field3276 60 00:02:51 00:05:43 0.499
field3277 60 00:02:51 00:05:49 0.491
field3278 60 00:02:51 00:05:49 0.491
field3279 60 00:02:51 00:05:46 0.495
field3280 60 00:02:51 00:05:43 0.499
field3281 60 00:02:51 00:05:43 0.499
field3282 60 00:02:51 00:05:46 0.495
field3283 60 00:02:51 00:05:49 0.491
field3284 60 00:02:51 00:05:46 0.495
field3285 60 00:02:51 00:07:55 0.361
field3466 60 00:02:51 00:05:52 0.487
field3467 60 00:02:51 00:05:43 0.499
field3468 60 00:02:51 00:05:54 0.484
field3469 60 00:02:51 00:05:52 0.487
field3470 60 00:02:51 00:05:54 0.484
field3471 60 00:02:51 00:05:49 0.491
field3472 60 00:02:51 00:05:46 0.495
field3473 60 00:02:51 00:05:43 0.499
field3474 60 00:02:51 00:05:49 0.491
field3475 60 00:02:51 00:05:43 0.499
field3476 60 00:02:51 00:05:40 0.503
field3477 60 00:02:51 00:06:02 0.474










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 47:41:50 250:46:03 0.190

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 1811:12:51 940:30:02 870:42:49 243:47:59 208:58:16 208:58:16 208:58:16 02:39:50
Observed 47:41:51
(2.63%)		 00:00:00
(0.00%)		 47:41:51
(5.48%)		 09:22:16
(3.84%)		 11:53:48
(5.69%)		 17:03:29
(8.16%)		 09:22:16
(4.48%)		 02:39:50
(N/A)
Remaining 1763:31:00
(97.37%)		 940:30:02
(100.00%)		 823:00:57
(94.52%)		 234:25:42
(96.16%)		 197:04:27
(94.31%)		 191:54:46
(91.84%)		 199:36:00
(95.52%)		 00:00:00
(N/A)











Camera status (2026/01/30)



Return to index
Previous day Next day