PRIME Observation Log 2026/03/02

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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: 2026/03/02
Local observer:
Remote observer: Ryusei, Takuto
Weather: clear
Comment:
Detector Temperature: 111.99998 +- 0.00115 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:33:07
Morning 06:04:49
Science Observation
(Sun altitude < -10°)
Start 19:55:01
End 05:42:55
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 01:55:03
End 05:42:55


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:37:40 09:47:53 0.983
GB Time 03:53:07 03:47:51 1.023
Non-GB Time 05:44:32 06:00:02 0.957


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 288 00:13:43 00:27:10 0.505
SAAO 4521 03:35:30 05:32:30 0.648
GB 2168 01:43:20 03:53:07 0.443
OU 5 00:00:14 00:04:00 0.059
NASA 5 00:00:14 00:04:00 0.059
ABC 5 00:00:14 00:04:00 0.059


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 288 00:13:43 00:27:10 0.505
all_sky_grid 4176 03:19:03 04:45:23 0.697
ToO 360 00:17:09 00:59:08 0.290
Bulge 2068 01:38:34 03:36:58 0.454
SKY 100 00:04:46 00:16:08 0.295


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
test DY 4 00:00:11 00:00:41 0.276
FLAT OJ 280 00:13:20 00:24:53 0.536
field3651_test 32 00:01:31 00:11:34 0.132
field3651 684 00:32:36 00:43:11 0.755
field2528 684 00:32:36 00:41:16 0.790
field3842 684 00:32:36 00:41:47 0.780
field1753_test 4 00:00:11 00:01:55 0.099
field1753 684 00:32:36 00:40:17 0.809
field1351_test 60 00:02:51 00:18:03 0.158
field1351 300 00:14:18 00:41:05 0.348
field5448_test 16 00:00:45 00:08:00 0.095
field5448 684 00:32:36 00:40:20 0.808
field4756 684 00:32:36 00:40:56 0.796
field10675_test 20 00:00:57 00:16:02 0.059
GB83_test OJ 28 00:01:20 00:11:12 0.119
GB83_dither OJ 48 00:02:17 00:04:32 0.503
GB82_dither OJ 48 00:02:17 00:04:38 0.493
GB81_dither OJ 48 00:02:17 00:04:38 0.493
GB98_dither OJ 48 00:02:17 00:04:35 0.498
GB99_dither OJ 48 00:02:17 00:04:32 0.503
GB100_dither OJ 48 00:02:17 00:04:35 0.498
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
GB114_dither OJ 48 00:02:17 00:04:35 0.498
GB113_dither OJ 48 00:02:17 00:04:32 0.503
GB112_dither OJ 48 00:02:17 00:04:32 0.503
GB111_dither OJ 48 00:02:17 00:04:38 0.493
GB110_dither OJ 48 00:02:17 00:04:32 0.503
GB109_dither OJ 48 00:02:17 00:04:35 0.498
GB108_dither OJ 48 00:02:17 00:09:27 0.242
GB91_dither OJ 48 00:02:17 00:04:32 0.503
GB92_dither OJ 48 00:02:17 00:04:35 0.498
GB93_dither OJ 48 00:02:17 00:04:43 0.484
GCsky 96 00:04:34 00:14:50 0.308
GCsky_test 4 00:00:11 00:01:18 0.145
GB76_dither OH 120 00:05:43 00:11:38 0.491
GB77_dither OH 120 00:05:43 00:11:41 0.489
GB78_dither OH 120 00:05:43 00:15:03 0.380
GB94_dither OH 96 00:04:34 00:09:22 0.488
GB111_dither OH 96 00:04:34 00:09:19 0.491
GB110_dither OH 96 00:04:34 00:09:19 0.491
GB109_dither OH 48 00:02:17 00:04:35 0.498
GB92_dither OH 24 00:01:08 00:02:21 0.484
GB93_dither OH 24 00:01:08 00:02:21 0.484
GB75_dither OH 48 00:02:17 00:04:35 0.498
GB112_dither OH 48 00:02:17 00:04:35 0.498
GB79_dither OH 48 00:02:17 00:04:46 0.479
GB60_dither OH 24 00:01:08 00:02:19 0.493
GB108_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB74_dither OH 24 00:01:08 00:02:35 0.440
GB95_dither OH 24 00:01:08 00:02:19 0.493
GB113_dither OH 24 00:01:08 00:02:19 0.493
GB96_dither OH 24 00:01:08 00:02:21 0.484
GB80_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:21 0.484
GB114_dither OH 24 00:01:08 00:02:41 0.425
FLAT_test OJ 4 00:00:11 00:01:35 0.120










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 12:55:22 19:33:40 0.661

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 1787:58:19 934:14:54 853:43:25 239:02:33 204:53:37 204:53:37 204:53:37 21:54:35
Observed 168:10:15
(9.41%)		 33:42:02
(3.61%)		 134:28:12
(15.75%)		 41:44:41
(17.46%)		 29:37:08
(14.46%)		 36:00:46
(17.58%)		 27:05:36
(13.22%)		 21:54:35
(N/A)
Remaining 1619:48:03
(90.59%)		 900:32:51
(96.39%)		 719:15:12
(84.25%)		 197:17:51
(82.54%)		 175:16:28
(85.54%)		 168:52:50
(82.42%)		 177:48:01
(86.78%)		 00:00:00
(N/A)











Camera status (2026/03/02)



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