PRIME Observation Log 2026/03/07

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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: 2026/03/07
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 112.00010 +- 0.00097 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:26:52
Morning 06:08:49
Science Observation
(Sun altitude < -10°)
Start 19:48:34
End 05:47:06
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 01:35:24
End 05:47:06


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 02:27:45 09:58:31 0.247
GB Time 02:27:45 04:11:41 0.587
Non-GB Time 00:00:00 05:46:50 0.000


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB 1260 01:00:03 02:27:45 0.406


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 1212 00:57:46 02:22:28 0.405
SKY 48 00:02:17 00:05:16 0.434


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB83_test OY 60 00:02:51 00:23:06 0.124
GB83_dither OY 48 00:02:17 00:05:31 0.414
GB100_dither OY 48 00:02:17 00:04:55 0.465
GB117_dither OY 48 00:02:17 00:04:38 0.493
GB116_dither OY 48 00:02:17 00:04:46 0.479
GB99_dither OY 48 00:02:17 00:04:55 0.465
GB82_dither OY 48 00:02:17 00:04:49 0.474
GB81_dither OY 48 00:02:17 00:04:35 0.498
GB98_dither OY 48 00:02:17 00:05:12 0.439
GB115_dither OY 48 00:02:17 00:05:42 0.400
GCsky 48 00:02:17 00:05:16 0.434
GB60_dither OY 48 00:02:17 00:04:38 0.493
GB80_dither OY 48 00:02:17 00:04:35 0.498
GB79_dither OY 48 00:02:17 00:04:32 0.503
GB78_dither OY 48 00:02:17 00:04:35 0.498
GB77_dither OY 48 00:02:17 00:05:11 0.440
GB76_dither OY 48 00:02:17 00:05:28 0.418
GB75_dither OY 48 00:02:17 00:04:32 0.503
GB74_dither OY 48 00:02:17 00:04:57 0.461
GB97_dither OY 48 00:02:17 00:04:35 0.498
GB96_dither OY 48 00:02:17 00:04:46 0.479
GB95_dither OY 48 00:02:17 00:05:06 0.448
GB94_dither OY 48 00:02:17 00:05:31 0.414
GB93_dither OY 48 00:02:17 00:04:54 0.465
GB92_dither OY 48 00:02:17 00:05:11 0.440
GB91_dither OY 48 00:02:17 00:05:34 0.411










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 99:19:50 259:06:19 0.383
Mar 31:17:11 69:05:05 0.453

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 1781:34:26 936:46:22 844:48:03 236:32:39 202:45:08 202:45:08 202:45:08 22:20:43
Observed 186:32:04
(10.47%)		 46:18:56
(4.94%)		 140:13:08
(16.60%)		 47:29:36
(20.08%)		 29:37:08
(14.61%)		 36:00:46
(17.76%)		 27:05:36
(13.36%)		 22:20:43
(N/A)
Remaining 1595:02:21
(89.53%)		 890:27:25
(95.06%)		 704:34:55
(83.40%)		 189:03:03
(79.92%)		 173:07:59
(85.39%)		 166:44:21
(82.24%)		 175:39:31
(86.64%)		 00:00:00
(N/A)











Camera status (2026/03/07)



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