PRIME Observation Log 2025/05/12

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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: 2025/05/12
Local observer:
Remote observer: Ryo Ogawa, Asahi Idei, Takuto Tamaoki, Yui Okumoto
Weather: cloudy
Comment:
Detector Temperature: 114.00012 +- 0.00152 K
ImageAcquisitionErrors occurred 2 times @
2025-05-12 20:10:14 SAT
2025-05-13 05:23:14 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:12:21
Morning 06:54:10
Science Observation
(Sun altitude < -10°)
Start 18:34:36
End 06:31:52
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 21:14:55
End 06:31:52


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 10:39:00 11:57:15 0.891
GB Time 08:10:29 09:16:56 0.881
Non-GB Time 02:28:31 02:40:19 0.926


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 124 00:05:54 00:13:08 0.450
SAAO 547 00:26:04 01:17:54 0.335
GB 4512 03:35:04 08:10:29 0.438
OU 157 00:07:29 00:23:32 0.318
NASA 157 00:07:29 00:23:32 0.318
ABC 157 00:07:29 00:23:32 0.318


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 124 00:05:54 00:13:08 0.450
ToO 390 00:18:35 00:54:22 0.342
all_sky_grid 628 00:29:56 01:34:09 0.318
Bulge 4392 03:29:21 07:53:30 0.442
SKY 120 00:05:43 00:16:58 0.337


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 00:01:21 0.140
FLAT OJ 120 00:05:43 00:11:46 0.485
field1351_test 90 00:04:17 00:23:01 0.186
field1351 300 00:14:18 00:31:20 0.456
field8918_test 32 00:01:31 00:22:05 0.069
field5269_test 4 00:00:11 00:01:29 0.127
field8330_test 8 00:00:22 00:03:05 0.123
field8330 80 00:03:48 00:07:56 0.480
field8331 64 00:03:03 00:14:35 0.209
field8332 40 00:01:54 00:03:55 0.485
field8333 40 00:01:54 00:03:55 0.485
field8334 40 00:01:54 00:03:52 0.491
field8335 40 00:01:54 00:03:55 0.485
field8336 40 00:01:54 00:03:50 0.497
field8337 40 00:01:54 00:03:47 0.503
field8338 40 00:01:54 00:04:04 0.469
field8339 40 00:01:54 00:04:04 0.469
field8340 40 00:01:54 00:04:01 0.474
field8341 40 00:01:54 00:03:47 0.503
field8342 40 00:01:54 00:05:42 0.334
GB63_test OH 40 00:01:54 00:14:34 0.131
GB63_dither OH 144 00:06:51 00:15:01 0.457
GB62_dither OH 144 00:06:51 00:14:46 0.465
GB61_dither OH 144 00:06:51 00:14:31 0.473
GB60_dither OH 144 00:06:51 00:14:42 0.467
GB59_dither OH 148 00:07:03 00:20:07 0.351
GB58_dither OH 144 00:06:51 00:15:57 0.430
GB57_dither OH 124 00:05:54 00:15:09 0.390
GB74_dither OH 120 00:05:43 00:12:26 0.460
GB75_dither OH 120 00:05:43 00:12:48 0.446
GB76_dither OH 120 00:05:43 00:12:03 0.474
GB77_dither OH 120 00:05:43 00:12:03 0.474
GB78_dither OH 120 00:05:43 00:12:54 0.443
GB79_dither OH 120 00:05:43 00:12:18 0.465
GB80_dither OH 120 00:05:43 00:12:14 0.467
GB97_dither OH 120 00:05:43 00:12:29 0.458
GB96_dither OH 120 00:05:43 00:11:58 0.478
GB95_dither OH 120 00:05:43 00:12:30 0.457
GB94_dither OH 120 00:05:43 00:12:47 0.447
GB93_dither OH 120 00:05:43 00:13:30 0.423
GB92_dither OH 120 00:05:43 00:12:24 0.461
GB91_dither OH 120 00:05:43 00:12:19 0.464
GB108_dither OH 120 00:05:43 00:11:55 0.480
GB109_dither OH 120 00:05:43 00:12:17 0.465
GB110_dither OH 120 00:05:43 00:12:26 0.460
GB111_dither OH 120 00:05:43 00:12:03 0.474
GB112_dither OH 120 00:05:43 00:12:37 0.453
GB113_dither OH 120 00:05:43 00:12:12 0.469
GB114_dither OH 120 00:05:43 00:12:01 0.476
GB131_dither OH 120 00:05:43 00:12:14 0.467
GB130_dither OH 120 00:05:43 00:12:20 0.463
GB129_dither OH 120 00:05:43 00:12:04 0.474
GB128_dither OH 120 00:05:43 00:12:08 0.471
GB127_dither OH 120 00:05:43 00:12:18 0.465
GB126_dither OH 120 00:05:43 00:11:55 0.480
GB125_dither OH 120 00:05:43 00:15:13 0.376
GCsky 120 00:05:43 00:16:58 0.337










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 98:03:45 141:58:42 0.691

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 1805:19:39 918:54:57 886:24:41 248:11:42 212:44:19 212:44:19 212:44:19 135:32:41
Observed 575:34:23
(31.88%)		 253:28:13
(27.58%)		 322:06:09
(36.34%)		 47:27:45
(19.12%)		 76:16:59
(35.86%)		 156:46:35
(73.69%)		 41:34:48
(19.55%)		 135:32:41
(N/A)
Remaining 1229:45:16
(68.12%)		 665:26:44
(72.42%)		 564:18:32
(63.66%)		 200:43:57
(80.88%)		 136:27:19
(64.14%)		 55:57:43
(26.31%)		 171:09:31
(80.45%)		 00:00:00
(N/A)











Camera status (2025/05/12)



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