PRIME Observation Log 2025/03/10

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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: 2025/03/10
Local observer: Yuki Satoh,
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00001 +- 0.00138 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:22:44
Morning 06:11:20
Science Observation
(Sun altitude < -10°)
Start 19:44:20
End 05:49:43
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 01:22:36
End 05:49:43


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:37:25 10:05:23 0.954
GB Time 04:03:31 04:27:07 0.912
Non-GB Time 05:33:53 05:38:15 0.987


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 484 00:23:04 00:47:47 0.483
ALLSKY 2188 01:44:17 03:43:48 0.466
NASA 2019 01:36:14 02:46:02 0.580
GB 2448 01:56:41 04:03:31 0.479
SAAO 547 00:26:04 00:55:57 0.466
OU 547 00:26:04 00:55:57 0.466
ABC 547 00:26:04 00:55:57 0.466


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 484 00:23:04 00:47:47 0.483
all_sky_grid 2188 01:44:17 03:43:48 0.466
ToO 1472 01:10:09 01:50:05 0.637
Bulge 2376 01:53:15 03:55:21 0.481
SKY 72 00:03:25 00:08:10 0.420


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 4 00:00:11 00:01:13 0.156
FLAT OJ 480 00:22:52 00:46:34 0.491
field20224_test 28 00:01:20 00:07:38 0.175
field20224 40 00:01:54 00:04:04 0.469
field20225 40 00:01:54 00:05:08 0.371
field20502 40 00:01:54 00:04:04 0.469
field20503 40 00:01:54 00:04:07 0.462
field20504 40 00:01:54 00:04:03 0.470
field20505 40 00:01:54 00:03:47 0.503
field20506 40 00:01:54 00:04:20 0.438
field20507 40 00:01:54 00:03:50 0.497
field20508 40 00:01:54 00:04:06 0.463
field20509 40 00:01:54 00:04:12 0.453
field20510 40 00:01:54 00:03:50 0.497
field20511 40 00:01:54 00:03:52 0.491
field20512 40 00:01:54 00:03:52 0.491
field20513 40 00:01:54 00:03:47 0.503
field20514 40 00:01:54 00:03:47 0.503
field20515 40 00:01:54 00:03:47 0.503
field20516 40 00:01:54 00:03:47 0.503
field20517 40 00:01:54 00:03:47 0.503
field20518 40 00:01:54 00:03:52 0.491
field20519 40 00:01:54 00:03:50 0.497
field20520 40 00:01:54 00:03:58 0.480
field20521 40 00:01:54 00:03:52 0.491
field20522 40 00:01:54 00:03:52 0.491
field20523 40 00:01:54 00:03:52 0.491
field20524 40 00:01:54 00:03:47 0.503
field20525 40 00:01:54 00:03:47 0.503
field20526 40 00:01:54 00:03:47 0.503
field20527 40 00:01:54 00:03:47 0.503
field20528 40 00:01:54 00:05:25 0.352
field4132 40 00:01:54 00:03:52 0.491
field4565 40 00:01:54 00:03:47 0.503
field4566 40 00:01:54 00:03:50 0.497
field5250 40 00:01:54 00:03:58 0.480
field8063 40 00:01:54 00:03:50 0.497
field8064 40 00:01:54 00:05:19 0.358
field18056 40 00:01:54 00:05:33 0.343
field3924 40 00:01:54 00:03:50 0.497
field3925 40 00:01:54 00:03:50 0.497
field3926 40 00:01:54 00:03:52 0.491
field3927 40 00:01:54 00:03:52 0.491
field4131 40 00:01:54 00:03:47 0.503
field4133 40 00:01:54 00:03:47 0.503
field4134 40 00:01:54 00:03:52 0.491
field4135 40 00:01:54 00:03:52 0.491
field4136 40 00:01:54 00:03:47 0.503
field4137 40 00:01:54 00:03:50 0.497
field4349 40 00:01:54 00:03:47 0.503
field4350 40 00:01:54 00:03:47 0.503
field4351 40 00:01:54 00:03:52 0.491
field4567 40 00:01:54 00:03:50 0.497
field4568 40 00:01:54 00:03:50 0.497
field4569 40 00:01:54 00:03:47 0.503
field4570 40 00:01:54 00:03:47 0.503
field4571 40 00:01:54 00:04:40 0.408
no_grid_test 27 00:01:17 00:03:37 0.355
no_grid 1445 01:08:52 01:46:27 0.647
GB95_dither OH 72 00:03:25 00:07:00 0.490
GB94_dither OH 72 00:03:25 00:07:03 0.487
GB93_dither OH 72 00:03:25 00:06:54 0.497
GB92_dither OH 72 00:03:25 00:07:03 0.487
GB91_dither OH 72 00:03:25 00:07:03 0.487
GB108_dither OH 72 00:03:25 00:07:00 0.490
GB109_dither OH 72 00:03:25 00:06:57 0.493
GB110_dither OH 72 00:03:25 00:07:03 0.487
GB111_dither OH 72 00:03:25 00:06:54 0.497
GB112_dither OH 72 00:03:25 00:06:57 0.493
GB113_dither OH 72 00:03:25 00:07:00 0.490
GB114_dither OH 72 00:03:25 00:06:54 0.497
GB131_dither OH 72 00:03:25 00:07:00 0.490
GB130_dither OH 72 00:03:25 00:06:57 0.493
GB129_dither OH 72 00:03:25 00:06:51 0.500
GB128_dither OH 72 00:03:25 00:07:00 0.490
GB127_dither OH 72 00:03:25 00:07:00 0.490
GB126_dither OH 72 00:03:25 00:07:00 0.490
GB125_dither OH 72 00:03:25 00:07:36 0.451
GCsky 72 00:03:25 00:08:10 0.420
GB63_dither OH 72 00:03:25 00:07:03 0.487
GB62_dither OH 72 00:03:25 00:07:00 0.490
GB61_dither OH 72 00:03:25 00:06:57 0.493
GB60_dither OH 72 00:03:25 00:07:00 0.490
GB59_dither OH 72 00:03:25 00:07:03 0.487
GB58_dither OH 72 00:03:25 00:07:00 0.490
GB57_dither OH 72 00:03:25 00:07:03 0.487
GB74_dither OH 72 00:03:25 00:07:00 0.490
GB75_dither OH 72 00:03:25 00:07:05 0.484
GB76_dither OH 72 00:03:25 00:10:52 0.315
GB77_dither OH 48 00:02:17 00:04:35 0.498
GB78_dither OH 48 00:02:17 00:04:41 0.488
GB79_dither OH 48 00:02:17 00:04:41 0.488
GB80_dither OH 48 00:02:17 00:04:38 0.493
GB97_dither OH 48 00:02:17 00:04:38 0.493
GB96_dither OH 48 00:02:17 00:04:41 0.488










Stats so far in 2025
Monthly observed fraction so far in 2025
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 103:35:29 259:42:08 0.399
Feb 53:54:42 259:20:18 0.208
Mar 42:43:55 99:18:34 0.430

Observed time so far in 2025
- Total time of each institute is calculated by the following
    [All observation time in 2025] = [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 2025] = [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 2025] = [All observation time in 2025] - [GB observation time in 2025]
    
    [OU, NASA, ABC time in 2025] = 0.24 x [Non-GB observation time in 2025]
    [SAAO time in 2025] = 0.28 x [Non-GB observation time in 2025]
    
- 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 1779:57:36 911:45:31 868:12:05 243:05:47 208:22:06 208:22:06 208:22:06 87:17:02
Observed 200:14:09
(11.25%)		 28:23:20
(3.11%)		 171:50:48
(19.79%)		 15:16:30
(6.28%)		 43:35:49
(20.92%)		 101:34:32
(48.75%)		 11:23:56
(5.47%)		 87:17:02
(N/A)
Remaining 1579:43:27
(88.75%)		 883:22:10
(96.89%)		 696:21:16
(80.21%)		 227:49:16
(93.72%)		 164:46:16
(79.08%)		 106:47:33
(51.25%)		 196:58:09
(94.53%)		 00:00:00
(N/A)











Camera status (2025/03/10)