PRIME Observation Log 2025/10/26

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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: 2025/10/26
Local observer: Kansuke
Remote observer:
Weather: Cloud
Comment:
Detector Temperature: 115.99999 +- 0.00094 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 19:20:45
Morning 05:20:09
Science Observation
(Sun altitude < -10°)
Start 19:43:31
End 04:57:24
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:43:31
End 21:47:36


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:17:41 09:13:52 1.007
GB Time 01:50:25 02:04:04 0.890
Non-GB Time 07:27:16 07:09:47 1.041


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 372 00:17:43 00:42:54 0.413
GB 872 00:41:33 01:50:25 0.376
SAAO 922 00:43:56 01:51:49 0.393
OU 922 00:43:56 01:51:49 0.393
NASA 922 00:43:56 01:51:49 0.393
ABC 922 00:43:56 01:51:49 0.393


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 372 00:17:43 00:42:54 0.413
Bulge 824 00:39:16 01:44:22 0.376
SKY 48 00:02:17 00:06:03 0.377
all_sky_grid 3688 02:55:47 07:27:16 0.393


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT ZO 372 00:17:43 00:42:54 0.413
GB78_test OJ 8 00:00:22 00:03:08 0.121
GCsky 48 00:02:17 00:06:03 0.377
GB74_dither OJ 48 00:02:17 00:05:41 0.402
GB91_dither OJ 48 00:02:17 00:05:41 0.402
GB108_dither OJ 48 00:02:17 00:06:20 0.361
GB76_test OH 8 00:00:22 00:01:52 0.203
GB76_dither OH 80 00:03:48 00:10:53 0.350
GB77_dither OH 72 00:03:25 00:08:32 0.402
GB78_dither OH 72 00:03:25 00:08:37 0.398
GB94_dither OH 72 00:03:25 00:08:34 0.400
GB111_dither OH 96 00:04:34 00:11:28 0.399
GB110_dither OH 72 00:03:25 00:08:37 0.398
GB109_dither OH 32 00:01:31 00:04:29 0.339
GB108_dither OH 24 00:01:08 00:02:59 0.383
GB74_dither OH 24 00:01:08 00:02:59 0.383
GB93_dither OH 24 00:01:08 00:02:50 0.402
GB75_dither OH 24 00:01:08 00:02:50 0.402
GB112_dither OH 24 00:01:08 00:02:53 0.396
GB79_dither OH 24 00:01:08 00:02:56 0.389
GB60_dither OH 24 00:01:08 00:02:53 0.396
field6781_test 8 00:00:22 00:01:41 0.225
field6781 40 00:01:54 00:05:01 0.380
field10127 40 00:01:54 00:04:55 0.387
field12244 40 00:01:54 00:04:47 0.398
field12864 40 00:01:54 00:04:47 0.398
field12865 40 00:01:54 00:05:01 0.380
field7872 40 00:01:54 00:04:50 0.394
field7332 40 00:01:54 00:04:50 0.394
field7068 40 00:01:54 00:04:50 0.394
field6807 40 00:01:54 00:04:47 0.398
field6549 40 00:01:54 00:04:50 0.394
field6045 40 00:01:54 00:04:50 0.394
field5799 40 00:01:54 00:04:50 0.394
field5085 40 00:01:54 00:04:50 0.394
field4631 40 00:01:54 00:04:47 0.398
field4411 40 00:01:54 00:04:50 0.394
field3984 40 00:01:54 00:04:50 0.394
field3576 40 00:01:54 00:04:44 0.402
field3577 40 00:01:54 00:04:47 0.398
field3578 40 00:01:54 00:04:47 0.398
field3381 40 00:01:54 00:04:47 0.398
field3382 40 00:01:54 00:04:47 0.398
field3383 40 00:01:54 00:04:50 0.394
field3004 40 00:01:54 00:04:47 0.398
field3388 40 00:01:54 00:04:47 0.398
field3005 40 00:01:54 00:04:50 0.394
field3389 40 00:01:54 00:04:50 0.394
field3006 40 00:01:54 00:04:47 0.398
field3007 40 00:01:54 00:04:47 0.398
field3009 40 00:01:54 00:04:47 0.398
field3010 40 00:01:54 00:04:50 0.394
field2826 40 00:01:54 00:04:47 0.398
field3011 40 00:01:54 00:04:47 0.398
field2829 40 00:01:54 00:04:52 0.391
field2830 40 00:01:54 00:04:44 0.402
field2831 40 00:01:54 00:04:47 0.398
field2652 40 00:01:54 00:04:47 0.398
field2832 40 00:01:54 00:04:44 0.402
field2654 40 00:01:54 00:04:47 0.398
field2655 40 00:01:54 00:04:47 0.398
field2656 40 00:01:54 00:04:50 0.394
field3209 40 00:01:54 00:04:52 0.391
field2659 40 00:01:54 00:04:50 0.394
field2660 40 00:01:54 00:04:44 0.402
field2661 40 00:01:54 00:04:47 0.398
field2662 40 00:01:54 00:04:47 0.398
field2663 40 00:01:54 00:04:50 0.394
field2664 40 00:01:54 00:04:47 0.398
field2665 40 00:01:54 00:04:47 0.398
field2666 40 00:01:54 00:04:50 0.394
field2667 40 00:01:54 00:04:47 0.398
field2668 40 00:01:54 00:04:47 0.398
field2669 40 00:01:54 00:04:50 0.394
field2670 40 00:01:54 00:04:47 0.398
field2671 40 00:01:54 00:04:47 0.398
field3034 40 00:01:54 00:04:52 0.391
field2674 40 00:01:54 00:04:50 0.394
field2676 40 00:01:54 00:05:12 0.366
field4900 40 00:01:54 00:04:44 0.402
field4899 40 00:01:54 00:04:50 0.394
field4897 40 00:01:54 00:04:44 0.402
field4896 40 00:01:54 00:04:55 0.387
field6347 40 00:01:54 00:04:44 0.402
field6346 40 00:01:54 00:04:47 0.398
field6345 40 00:01:54 00:04:47 0.398
field6344 40 00:01:54 00:04:50 0.394
field6605 40 00:01:54 00:04:47 0.398
field6604 40 00:01:54 00:04:47 0.398
field6599 40 00:01:54 00:04:47 0.398
field6600 40 00:01:54 00:04:47 0.398
field6601 40 00:01:54 00:04:47 0.398
field6602 40 00:01:54 00:04:47 0.398
field6603 40 00:01:54 00:04:50 0.394
field5851 40 00:01:54 00:04:47 0.398
field5852 40 00:01:54 00:04:47 0.398
field5853 40 00:01:54 00:05:04 0.376
field8489 40 00:01:54 00:04:44 0.402
field8490 40 00:01:54 00:04:44 0.402
field8491 40 00:01:54 00:04:44 0.402
field8492 40 00:01:54 00:04:47 0.398
field8493 40 00:01:54 00:04:47 0.398
field8494 40 00:01:54 00:04:50 0.394
field8215 40 00:01:54 00:04:50 0.394
field8214 40 00:01:54 00:04:52 0.391
field7408 40 00:01:54 00:04:44 0.402
field7407 40 00:01:54 00:04:47 0.398
field7409 40 00:01:54 00:04:47 0.398
field7410 40 00:01:54 00:04:47 0.398
field7406 40 00:01:54 00:04:47 0.398
field7405 40 00:01:54 00:04:50 0.394
field7412 40 00:01:54 00:04:47 0.398
field7413 40 00:01:54 00:04:47 0.398
field7414 40 00:01:54 00:07:18 0.261










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 151:07:54 251:20:39 0.601

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 2005:05:06 1048:06:26 956:58:39 267:57:13 229:40:28 229:40:28 229:40:28 212:49:05
Observed 1728:23:43
(86.20%)		 1035:36:32
(98.81%)		 692:47:10
(72.39%)		 163:20:37
(60.96%)		 154:45:46
(67.38%)		 255:48:33
(111.38%)		 118:52:13
(51.76%)		 212:49:05
(N/A)
Remaining 276:41:23
(13.80%)		 12:29:54
(1.19%)		 264:11:28
(27.61%)		 104:36:36
(39.04%)		 74:54:42
(32.62%)		 -27:51:55
(0.00%)		 110:48:15
(48.24%)		 00:00:00
(N/A)











Camera status (2025/10/26)



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