PRIME Observation Log 2025/05/05

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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: 2025/05/05
Local observer: Seiya Nakayama
Remote observer:
Weather: clear
Comment:
Detector Temperature: 114.00001 +- 0.00136 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:17:34
Morning 06:49:34
Science Observation
(Sun altitude < -10°)
Start 18:39:35
End 06:27:31
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 21:42:26
End 06:27:31


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:26:03 11:47:56 0.969
GB Time 08:23:30 08:45:04 0.959
Non-GB Time 03:02:33 03:02:51 0.998


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 536 00:25:32 00:53:17 0.479
GB 5024 03:59:28 08:23:30 0.476
SAAO 508 00:24:12 00:45:38 0.531
OU 508 00:24:12 00:45:38 0.531
NASA 508 00:24:12 00:45:38 0.531
ABC 508 00:24:12 00:45:38 0.531


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 536 00:25:32 00:53:17 0.479
all_sky_grid 2032 01:36:51 03:02:33 0.531
Bulge 4904 03:53:45 08:09:54 0.477
SKY 120 00:05:43 00:13:36 0.420


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OJ 4 00:00:11 00:00:41 0.276
FLAT_test OY 32 00:01:31 00:06:15 0.244
FLAT OY 500 00:23:50 00:46:21 0.514
field3437_test 64 00:03:03 00:07:58 0.382
field3437 40 00:01:54 00:04:04 0.469
field3438 40 00:01:54 00:03:47 0.503
field3439 40 00:01:54 00:03:50 0.497
field3440 40 00:01:54 00:03:55 0.485
field3441 40 00:01:54 00:05:25 0.352
field10333_test 32 00:01:31 00:03:38 0.419
field10333 56 00:02:40 00:05:01 0.531
field10334 40 00:01:54 00:03:19 0.574
field10335 40 00:01:54 00:03:19 0.574
field10336 40 00:01:54 00:03:19 0.574
field10337 40 00:01:54 00:03:19 0.574
field10338 40 00:01:54 00:03:19 0.574
field10339 40 00:01:54 00:03:19 0.574
field10340 40 00:01:54 00:03:19 0.574
field10341 40 00:01:54 00:03:19 0.574
field10342 40 00:01:54 00:03:19 0.574
field10343 40 00:01:54 00:03:19 0.574
field10344 40 00:01:54 00:03:19 0.574
field10345 40 00:01:54 00:03:19 0.574
field10346 40 00:01:54 00:03:19 0.574
field10347 40 00:01:54 00:03:19 0.574
field10348 40 00:01:54 00:03:19 0.574
field10349 40 00:01:54 00:03:19 0.574
field10350 40 00:01:54 00:03:19 0.574
field10351 40 00:01:54 00:03:19 0.574
field10352 40 00:01:54 00:03:19 0.574
field10353 40 00:01:54 00:03:19 0.574
field10354 40 00:01:54 00:03:19 0.574
field10355 40 00:01:54 00:03:19 0.574
field10356 40 00:01:54 00:03:19 0.574
field10357 40 00:01:54 00:03:19 0.574
field10358 40 00:01:54 00:03:19 0.574
field10359 40 00:01:54 00:03:19 0.574
field10360 40 00:01:54 00:03:19 0.574
field10361 40 00:01:54 00:03:19 0.574
field10362 40 00:01:54 00:03:19 0.574
field10363 40 00:01:54 00:03:19 0.574
field10364 40 00:01:54 00:03:19 0.574
field10365 40 00:01:54 00:03:19 0.574
field10366 40 00:01:54 00:03:19 0.574
field10367 40 00:01:54 00:03:19 0.574
field10368 40 00:01:54 00:03:19 0.574
field10369 40 00:01:54 00:04:12 0.453
field3737_test 40 00:01:54 00:04:34 0.416
field3737 40 00:01:54 00:03:50 0.497
field3738 40 00:01:54 00:03:50 0.497
field3739 40 00:01:54 00:03:50 0.497
field3943 40 00:01:54 00:03:50 0.497
field3944 40 00:01:54 00:04:32 0.420
GB63_dither_test OH 128 00:06:06 00:15:15 0.400
GB63_dither OH 144 00:06:51 00:15:47 0.435
GB62_dither OH 144 00:06:51 00:14:08 0.485
GB61_dither OH 144 00:06:51 00:14:00 0.490
GB60_dither OH 144 00:06:51 00:14:00 0.490
GB59_dither OH 144 00:06:51 00:14:14 0.482
GB58_dither OH 144 00:06:51 00:14:06 0.487
GB57_dither OH 144 00:06:51 00:14:06 0.487
GB74_dither OH 144 00:06:51 00:14:11 0.484
GB75_dither OH 144 00:06:51 00:14:14 0.482
GB76_dither OH 144 00:06:51 00:14:11 0.484
GB77_dither OH 144 00:06:51 00:14:00 0.490
GB78_dither OH 144 00:06:51 00:14:08 0.485
GB79_dither OH 144 00:06:51 00:14:03 0.488
GB80_dither OH 144 00:06:51 00:14:03 0.488
GB97_dither OH 144 00:06:51 00:14:14 0.482
GB96_dither OH 144 00:06:51 00:14:06 0.487
GB95_dither OH 144 00:06:51 00:14:17 0.480
GB94_dither OH 144 00:06:51 00:14:14 0.482
GB93_dither OH 144 00:06:51 00:14:14 0.482
GB92_dither OH 144 00:06:51 00:14:06 0.487
GB91_dither OH 144 00:06:51 00:14:14 0.482
GB108_dither OH 144 00:06:51 00:14:06 0.487
GB109_dither OH 144 00:06:51 00:14:00 0.490
GB110_dither OH 144 00:06:51 00:15:47 0.435
GB111_dither OH 120 00:05:43 00:11:44 0.487
GB112_dither OH 120 00:05:43 00:11:54 0.480
GB113_dither OH 120 00:05:43 00:11:58 0.478
GB114_dither OH 120 00:05:43 00:11:52 0.482
GB131_dither OH 120 00:05:43 00:11:58 0.478
GB130_dither OH 120 00:05:43 00:12:01 0.476
GB129_dither OH 120 00:05:43 00:12:03 0.474
GB128_dither OH 120 00:05:43 00:11:49 0.483
GB127_dither OH 120 00:05:43 00:11:58 0.478
GB126_dither OH 120 00:05:43 00:11:55 0.480
GB125_dither OH 120 00:05:43 00:12:43 0.450
GCsky 120 00:05:43 00:13:36 0.420










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 158:57:47 319:07:20 0.498
Apr 161:02:39 338:08:53 0.476
May 41:48:41 58:45:13 0.712

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 1790:41:18 907:37:39 883:03:39 247:15:25 211:56:04 211:56:04 211:56:04 131:54:53
Observed 519:19:17
(29.00%)		 210:29:23
(23.19%)		 308:49:54
(34.97%)		 43:42:22
(17.68%)		 72:28:10
(34.19%)		 153:55:34
(72.63%)		 38:43:47
(18.27%)		 131:54:53
(N/A)
Remaining 1271:22:01
(71.00%)		 697:08:16
(76.81%)		 574:13:44
(65.03%)		 203:33:03
(82.32%)		 139:27:53
(65.81%)		 58:00:30
(27.37%)		 173:12:17
(81.73%)		 00:00:00
(N/A)











Camera status (2025/05/05)



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