PRIME Observation Log 2025/10/21

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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: 2025/10/21
Local observer: Kansuke
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 116.64703 +- 0.36739 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:16:28
Morning 05:25:39
Science Observation
(Sun altitude < -10°)
Start 19:38:56
End 05:03:12
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:38:56
End 22:07:15


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:29:31 09:24:15 1.009
GB Time 02:14:58 02:28:19 0.910
Non-GB Time 07:14:33 06:55:56 1.045


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.)
GB 1056 00:50:20 02:14:58 0.373
NASA 2115 01:40:48 03:26:43 0.488
CALIB 200 00:09:32 00:21:49 0.437
SAAO 621 00:29:36 01:15:56 0.390
OU 621 00:29:36 01:15:56 0.390
ABC 621 00:29:36 01:15:56 0.390


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 1032 00:49:11 02:11:56 0.373
SKY 24 00:01:08 00:03:01 0.377
ToO 1494 01:11:12 02:10:46 0.545
all_sky_grid 2484 01:58:24 05:03:46 0.390
TWILIGHT 200 00:09:32 00:21:49 0.437


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB76_test OH 8 00:00:22 00:03:25 0.111
GCsky 24 00:01:08 00:03:01 0.377
GB76_dither OH 96 00:04:34 00:11:36 0.394
GB77_dither OH 96 00:04:34 00:11:28 0.399
GB78_dither OH 96 00:04:34 00:11:31 0.397
GB94_dither OH 96 00:04:34 00:11:34 0.396
GB111_dither OH 120 00:05:43 00:15:01 0.381
GB110_dither OH 96 00:04:34 00:11:36 0.394
GB109_dither OH 48 00:02:17 00:05:44 0.399
GB108_dither OH 24 00:01:08 00:02:50 0.402
GB91_dither OH 24 00:01:08 00:02:53 0.396
GB74_dither OH 24 00:01:08 00:02:53 0.395
GB92_dither OH 24 00:01:08 00:02:50 0.402
GB93_dither OH 24 00:01:08 00:02:53 0.396
GB75_dither OH 48 00:02:17 00:05:44 0.399
GB112_dither OH 72 00:03:25 00:13:15 0.259
GB79_dither OH 24 00:01:08 00:02:53 0.396
GB60_dither OH 24 00:01:08 00:02:53 0.396
GB95_dither OH 24 00:01:08 00:02:50 0.402
GB113_dither OH 24 00:01:08 00:02:50 0.402
GB114_dither OH 24 00:01:08 00:02:53 0.396
GB97_dither OH 16 00:00:45 00:02:13 0.343
field16044_test 49 00:02:20 00:04:04 0.573
field16044 1445 01:08:52 02:06:42 0.544
field14501_test 4 00:00:11 00:01:04 0.176
field14501 40 00:01:54 00:04:50 0.394
field14502 40 00:01:54 00:04:50 0.394
field14503 40 00:01:54 00:04:47 0.398
field14504 40 00:01:54 00:04:47 0.398
field14505 40 00:01:54 00:04:55 0.387
field13880 40 00:01:54 00:04:47 0.398
field13881 40 00:01:54 00:04:47 0.398
field13882 40 00:01:54 00:04:47 0.398
field13883 40 00:01:54 00:04:47 0.398
field13884 40 00:01:54 00:04:50 0.394
field13572 40 00:01:54 00:04:47 0.398
field13573 40 00:01:54 00:04:50 0.394
field13574 40 00:01:54 00:04:47 0.398
field12951 40 00:01:54 00:04:47 0.398
field12952 40 00:01:54 00:04:50 0.394
field12643 40 00:01:54 00:04:44 0.402
field12954 40 00:01:54 00:04:47 0.398
field12955 40 00:01:54 00:04:50 0.394
field12956 40 00:01:54 00:04:47 0.398
field12957 40 00:01:54 00:04:50 0.394
field12958 40 00:01:54 00:04:50 0.394
field12959 40 00:01:54 00:04:47 0.398
field12960 40 00:01:54 00:04:47 0.398
field12961 40 00:01:54 00:04:47 0.398
field12962 40 00:01:54 00:04:50 0.394
field12963 40 00:01:54 00:04:50 0.394
field12964 40 00:01:54 00:04:47 0.398
field12345 40 00:01:54 00:04:50 0.394
field12346 40 00:01:54 00:04:50 0.394
field12347 40 00:01:54 00:04:47 0.398
field12348 40 00:01:54 00:04:47 0.398
field12349 40 00:01:54 00:04:47 0.398
field12350 40 00:01:54 00:04:50 0.394
field12351 40 00:01:54 00:04:47 0.398
field12352 40 00:01:54 00:04:47 0.398
field12353 40 00:01:54 00:04:50 0.394
field12354 40 00:01:54 00:04:47 0.398
field12355 40 00:01:54 00:04:47 0.398
field13287 40 00:01:54 00:04:50 0.394
field11741 40 00:01:54 00:05:57 0.320
field13286 40 00:01:54 00:04:50 0.394
field12974 40 00:01:54 00:04:47 0.398
field13598 40 00:01:54 00:04:47 0.398
field13599 40 00:01:54 00:06:42 0.284
field2687 40 00:01:54 00:04:50 0.394
field2514 40 00:01:54 00:04:50 0.394
field2515 40 00:01:54 00:04:52 0.391
field2513 40 00:01:54 00:04:47 0.398
field2686 40 00:01:54 00:04:50 0.394
field2512 40 00:01:54 00:04:44 0.402
field2685 40 00:01:54 00:04:47 0.398
field2684 40 00:01:54 00:05:06 0.373
field4685 40 00:01:54 00:04:50 0.394
field5145 40 00:01:54 00:04:50 0.394
field5379 40 00:01:54 00:04:52 0.391
field6366 40 00:01:54 00:04:44 0.402
field6365 40 00:01:54 00:04:55 0.387
field6624 40 00:01:54 00:04:44 0.402
field6625 40 00:01:54 00:04:44 0.402
field6626 40 00:01:54 00:04:47 0.398
field6627 40 00:01:54 00:04:47 0.398
field6623 40 00:01:54 00:05:57 0.320
FLAT ZO 200 00:09:32 00:21:49 0.437










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 244:24:55 372:31:50 0.656
Jun 209:59:39 370:50:11 0.566
Jul 224:49:02 377:25:14 0.596
Aug 230:19:15 357:22:01 0.644
Sep 190:24:38 318:36:32 0.598
Oct 119:56:55 204:50:32 0.586

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 1997:09:09 1047:42:14 949:26:55 265:50:44 227:52:03 227:52:03 227:52:03 210:12:16
Observed 1697:12:43
(84.98%)		 1029:37:51
(98.27%)		 667:34:51
(70.31%)		 157:42:52
(59.33%)		 148:35:39
(65.21%)		 248:01:51
(108.85%)		 113:14:28
(49.70%)		 210:12:16
(N/A)
Remaining 299:56:26
(15.02%)		 18:04:22
(1.73%)		 281:52:03
(29.69%)		 108:07:51
(40.67%)		 79:16:23
(34.79%)		 -21:50:13
(0.00%)		 114:37:35
(50.30%)		 00:00:00
(N/A)











Camera status (2025/10/21)



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