PRIME Observation Log 2026/03/10

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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: 2026/03/10
Local observer:
Remote observer: Takuto, Kansuke
Weather: clear
Comment:
Detector Temperature: 114.48054 +- 0.19954 K
ImageAcquisitionErrors occurred 1 times @
2026-03-10 22:12:50 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:23:02
Morning 06:11:08
Science Observation
(Sun altitude < -10°)
Start 19:44:38
End 05:49:30
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 01:23:37
End 05:49:30


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 05:38:32 10:04:51 0.560
GB Time 03:43:52 04:25:53 0.842
Non-GB Time 01:54:39 05:38:58 0.338


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
SAAO 1900 01:30:34 01:54:39 0.790
GB 2196 01:44:40 03:43:52 0.468
CALIB 276 00:13:09 00:23:55 0.550


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
all_sky_grid 1900 01:30:34 01:54:39 0.790
Bulge 2100 01:40:06 03:30:28 0.476
SKY 96 00:04:34 00:13:23 0.342
TWILIGHT 276 00:13:09 00:23:55 0.550


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
field7490_test 19 00:00:54 00:01:24 0.644
field7490 684 00:32:36 00:38:45 0.841
field10315_test 57 00:02:43 00:09:43 0.279
field10315 684 00:32:36 00:38:56 0.837
field11519 456 00:21:44 00:25:50 0.841
GB80_test OJ 8 00:00:22 00:03:56 0.097
GCsky 96 00:04:34 00:13:23 0.342
GB80_dither OJ 48 00:02:17 00:04:38 0.493
GB97_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
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 00:04:35 0.498
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB112_dither OJ 48 00:02:17 00:04:35 0.498
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB94_dither OJ 48 00:02:17 00:04:32 0.503
GB77_dither OJ 48 00:02:17 00:04:38 0.493
GB60_dither OJ 48 00:02:17 00:04:35 0.498
GB76_dither OJ 48 00:02:17 00:04:38 0.493
GB93_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:35 0.498
GB109_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:35 0.498
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB74_dither OJ 48 00:02:17 00:04:35 0.498
GB91_dither OJ 48 00:02:17 00:04:32 0.503
GB108_dither OJ 48 00:02:17 00:05:11 0.440
GB76_test OH 4 00:00:11 00:03:33 0.054
GB76_dither OH 96 00:04:34 00:09:19 0.491
GB77_dither OH 96 00:04:34 00:09:27 0.483
GB78_dither OH 96 00:04:34 00:09:13 0.496
GB94_dither OH 96 00:04:34 00:09:16 0.493
GB111_dither OH 96 00:04:34 00:09:16 0.493
GB110_dither OH 96 00:04:34 00:09:19 0.491
GB109_dither OH 48 00:02:17 00:04:55 0.465
GB92_dither OH 24 00:01:08 00:02:19 0.493
GB93_dither OH 24 00:01:08 00:02:21 0.484
GB75_dither OH 48 00:02:17 00:04:43 0.484
GB112_dither OH 48 00:02:17 00:04:38 0.493
GB79_dither OH 48 00:02:17 00:04:43 0.484
GB60_dither OH 24 00:01:08 00:02:19 0.493
GB108_dither OH 24 00:01:08 00:02:27 0.465
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB74_dither OH 24 00:01:08 00:02:19 0.493
GB95_dither OH 24 00:01:08 00:02:21 0.484
GB113_dither OH 24 00:01:08 00:02:21 0.484
GB80_dither OH 24 00:01:08 00:02:21 0.484
GB97_dither OH 24 00:01:08 00:02:21 0.484
GB114_dither OH 24 00:01:08 00:02:52 0.397
FLAT OH 276 00:13:09 00:23:55 0.550










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 50:06:26 99:13:21 0.505

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 1785:19:32 942:09:32 843:10:00 236:05:12 202:21:36 202:21:36 202:21:36 23:56:11
Observed 205:21:19
(11.50%)		 58:13:51
(6.18%)		 147:07:27
(17.45%)		 54:19:20
(23.01%)		 29:38:40
(14.65%)		 36:02:18
(17.81%)		 27:07:08
(13.40%)		 23:56:11
(N/A)
Remaining 1579:58:13
(88.50%)		 883:55:40
(93.82%)		 696:02:32
(82.55%)		 181:45:51
(76.99%)		 172:42:55
(85.35%)		 166:19:17
(82.19%)		 175:14:28
(86.60%)		 00:00:00
(N/A)











Camera status (2026/03/10)



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