PRIME Observation Log 2025/07/26

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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: 2025/07/26
Local observer: Togo
Remote observer:
Weather: Clear
Comment:
Detector Temperature: 114.00001 +- 0.00023 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:20:01
Morning 07:06:17
Science Observation
(Sun altitude < -10°)
Start 18:42:26
End 06:43:54
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:42:26
End 03:49:20


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:49:18 12:01:28 0.983
GB Time 08:14:27 09:06:54 0.904
Non-GB Time 03:34:51 02:54:33 1.231


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 300 00:14:18 00:27:02 0.529
GB 4924 03:54:42 08:14:27 0.475
SAAO 548 00:26:07 00:53:42 0.486
OU 548 00:26:07 00:53:42 0.486
NASA 548 00:26:07 00:53:42 0.486
ABC 548 00:26:07 00:53:42 0.486


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 300 00:14:18 00:27:02 0.529
Bulge 4828 03:50:08 08:03:32 0.476
SKY 96 00:04:34 00:10:54 0.419
all_sky_grid 2192 01:44:29 03:34:51 0.486


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OJ 300 00:14:18 00:27:02 0.529
GB74_test OJ 16 00:00:45 00:06:50 0.111
GB74_dither OJ 24 00:01:08 00:02:19 0.493
GB75_dither OJ 24 00:01:08 00:02:16 0.503
GB76_dither OJ 24 00:01:08 00:02:19 0.493
GB77_dither OJ 24 00:01:08 00:02:16 0.503
GB78_dither OJ 24 00:01:08 00:02:16 0.503
GB79_dither OJ 24 00:01:08 00:02:21 0.484
GB80_dither OJ 24 00:01:08 00:02:16 0.503
GB97_dither OJ 24 00:01:08 00:02:19 0.493
GB96_dither OJ 24 00:01:08 00:02:19 0.493
GB95_dither OJ 24 00:01:08 00:02:21 0.484
GB94_dither OJ 24 00:01:08 00:02:19 0.493
GB93_dither OJ 24 00:01:08 00:02:19 0.493
GB92_dither OJ 24 00:01:08 00:02:19 0.493
GB91_dither OJ 24 00:01:08 00:02:19 0.493
GB108_dither OJ 24 00:01:08 00:02:21 0.484
GB109_dither OJ 24 00:01:08 00:02:19 0.493
GB110_dither OJ 24 00:01:08 00:02:19 0.493
GB111_dither OJ 24 00:01:08 00:02:21 0.484
GB112_dither OJ 24 00:01:08 00:02:19 0.493
GB113_dither OJ 24 00:01:08 00:02:21 0.484
GB114_dither OJ 24 00:01:08 00:02:38 0.432
GCsky 96 00:04:34 00:10:54 0.419
GB76_test OH 12 00:00:34 00:02:23 0.239
GB79_dither OH 216 00:10:17 00:23:04 0.446
GB76_dither OH 384 00:18:18 00:37:48 0.484
GB77_dither OH 384 00:18:18 00:37:34 0.487
GB78_dither OH 384 00:18:18 00:37:20 0.490
GB94_dither OH 384 00:18:18 00:37:42 0.486
GB111_dither OH 408 00:19:26 00:40:30 0.480
GB110_dither OH 408 00:19:26 00:39:59 0.486
GB109_dither OH 216 00:10:17 00:21:12 0.486
GB92_dither OH 96 00:04:34 00:09:25 0.486
GB93_dither OH 96 00:04:34 00:09:30 0.481
GB75_dither OH 192 00:09:09 00:18:41 0.490
GB112_dither OH 216 00:10:17 00:21:14 0.485
GB60_dither OH 96 00:04:34 00:09:58 0.459
GB95_dither OH 96 00:04:34 00:09:25 0.486
GB113_dither OH 120 00:05:43 00:12:29 0.458
GB71_dither OH 24 00:01:08 00:02:19 0.493
GB72_dither OH 24 00:01:08 00:02:19 0.493
GB73_dither OH 24 00:01:08 00:02:27 0.465
GB90_dither OH 24 00:01:08 00:02:19 0.493
GB89_dither OH 24 00:01:08 00:02:16 0.503
GB88_dither OH 24 00:01:08 00:02:24 0.474
GB105_dither OH 24 00:01:08 00:02:19 0.493
GB106_dither OH 24 00:01:08 00:02:19 0.493
GB107_dither OH 24 00:01:08 00:03:23 0.337
GB74_dither OH 24 00:01:08 00:02:16 0.503
GB91_dither OH 24 00:01:08 00:02:16 0.503
GB108_dither OH 24 00:01:08 00:02:24 0.474
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:21 0.484
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB80_dither OH 24 00:01:08 00:02:19 0.493
GB83_dither OH 24 00:01:08 00:02:16 0.503
GB100_dither OH 24 00:01:08 00:02:19 0.493
GB117_dither OH 24 00:01:08 00:02:16 0.503
GB116_dither OH 24 00:01:08 00:02:19 0.493
GB99_dither OH 24 00:01:08 00:02:19 0.493
GB82_dither OH 24 00:01:08 00:02:19 0.493
GB81_dither OH 24 00:01:08 00:02:19 0.493
GB98_dither OH 24 00:01:08 00:02:19 0.493
GB115_dither OH 24 00:01:08 00:02:24 0.474
field12564_test 32 00:01:31 00:05:55 0.257
field12564 40 00:01:54 00:04:04 0.469
field12565 40 00:01:54 00:03:52 0.491
field12566 40 00:01:54 00:03:52 0.491
field12567 40 00:01:54 00:03:47 0.503
field12568 40 00:01:54 00:03:47 0.503
field12569 40 00:01:54 00:03:47 0.503
field12570 40 00:01:54 00:03:47 0.503
field12571 40 00:01:54 00:03:47 0.503
field12572 40 00:01:54 00:03:50 0.497
field12573 40 00:01:54 00:03:50 0.497
field12574 40 00:01:54 00:03:47 0.503
field12575 40 00:01:54 00:03:52 0.491
field12576 40 00:01:54 00:03:50 0.497
field12577 40 00:01:54 00:03:55 0.485
field12578 40 00:01:54 00:03:52 0.491
field12579 40 00:01:54 00:03:50 0.497
field12580 40 00:01:54 00:03:50 0.497
field12581 40 00:01:54 00:03:50 0.497
field12582 40 00:01:54 00:03:50 0.497
field12583 40 00:01:54 00:03:50 0.497
field12584 40 00:01:54 00:03:50 0.497
field12585 40 00:01:54 00:03:50 0.497
field12586 40 00:01:54 00:03:47 0.503
field12587 40 00:01:54 00:03:47 0.503
field12588 40 00:01:54 00:03:50 0.497
field12589 40 00:01:54 00:03:52 0.491
field12590 40 00:01:54 00:03:55 0.485
field12591 40 00:01:54 00:03:50 0.497
field12592 40 00:01:54 00:03:52 0.491
field12593 40 00:01:54 00:03:52 0.491
field12594 40 00:01:54 00:03:52 0.491
field12595 40 00:01:54 00:03:47 0.503
field12596 40 00:01:54 00:03:50 0.497
field12597 40 00:01:54 00:03:50 0.497
field12598 40 00:01:54 00:03:50 0.497
field12599 40 00:01:54 00:03:50 0.497
field12600 40 00:01:54 00:03:50 0.497
field12601 40 00:01:54 00:03:52 0.491
field12602 40 00:01:54 00:03:50 0.497
field12603 40 00:01:54 00:03:52 0.491
field12604 40 00:01:54 00:03:50 0.497
field12605 40 00:01:54 00:03:52 0.491
field12606 40 00:01:54 00:03:47 0.503
field12607 40 00:01:54 00:03:50 0.497
field12608 40 00:01:54 00:03:52 0.491
field12609 40 00:01:54 00:03:52 0.491
field12610 40 00:01:54 00:03:52 0.491
field12611 40 00:01:54 00:03:50 0.497
field12612 40 00:01:54 00:03:52 0.491
field12613 40 00:01:54 00:03:50 0.497
field12614 40 00:01:54 00:03:50 0.497
field12615 40 00:01:54 00:03:50 0.497
field12616 40 00:01:54 00:03:47 0.503
field12617 40 00:01:54 00:05:05 0.374










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 186:03:26 317:35:52 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 1888:04:51 970:08:44 917:56:06 257:01:18 220:18:16 220:18:16 220:18:16 165:08:07
Observed 1117:49:10
(59.20%)		 700:11:45
(72.17%)		 417:37:25
(45.50%)		 72:02:25
(28.03%)		 99:13:40
(45.04%)		 182:28:49
(82.83%)		 63:52:29
(28.99%)		 165:08:07
(N/A)
Remaining 770:15:41
(40.80%)		 269:56:59
(27.83%)		 500:18:41
(54.50%)		 184:58:53
(71.97%)		 121:04:35
(54.96%)		 37:49:26
(17.17%)		 156:25:46
(71.01%)		 00:00:00
(N/A)











Camera status (2025/07/26)



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