PRIME Observation Log 2025/09/05

Return to index
Previous day Next day

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: 2025/09/05
Local observer: Asahi
Remote observer:
Weather: clear, humid
Comment:
Detector Temperature: 113.99996 +- 0.00181 K
ImageAcquisitionErrors occurred 1 times @
2025-09-05 22:06:31 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:44:50
Morning 06:25:09
Science Observation
(Sun altitude < -10°)
Start 19:06:11
End 06:03:50
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:06:11
End 01:08:08


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 05:54:21 10:57:39 0.539
GB Time 05:54:21 06:01:56 0.979
Non-GB Time 00:00:00 04:55:42 0.000


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB 2944 02:20:19 05:54:21 0.396
CALIB 92 00:04:23 00:13:51 0.317


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 2892 02:17:51 05:46:47 0.398
TWILIGHT 92 00:04:23 00:13:51 0.317
SKY 52 00:02:28 00:07:34 0.327


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB76_test DY 20 00:00:57 00:38:59 0.024
FLAT_test OH 12 00:00:34 00:05:28 0.104
FLAT OH 80 00:03:48 00:08:22 0.456
GB76_test OH 24 00:01:08 00:06:14 0.183
GB76_dither OH 192 00:09:09 00:20:11 0.453
GB77_dither OH 192 00:09:09 00:20:22 0.449
GB78_dither OH 192 00:09:09 00:20:11 0.453
GB94_dither OH 192 00:09:09 00:19:41 0.465
GB111_dither OH 168 00:08:00 00:17:48 0.450
GB110_dither OH 168 00:08:00 00:17:45 0.451
GB109_dither OH 96 00:04:34 00:09:52 0.463
GB108_dither OH 24 00:01:08 00:02:39 0.431
GB91_dither OH 24 00:01:08 00:02:41 0.425
GB74_dither OH 24 00:01:08 00:02:33 0.448
GB92_dither OH 48 00:02:17 00:04:52 0.470
GB93_dither OH 48 00:02:17 00:05:54 0.388
GB75_dither OH 96 00:04:34 00:09:55 0.461
GB112_dither OH 72 00:03:25 00:07:03 0.487
GB79_dither OH 72 00:03:25 00:07:53 0.435
GB60_dither OH 48 00:02:17 00:04:52 0.469
GB95_dither OH 48 00:02:17 00:04:49 0.474
GB113_dither OH 24 00:01:08 00:02:30 0.456
GB114_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB96_dither OH 24 00:01:08 00:02:44 0.418
GB80_dither OH 24 00:01:08 00:02:41 0.425
GCsky 48 00:02:17 00:05:27 0.419
GB80_test OY 16 00:00:45 00:04:41 0.162
GB80_dither OY 48 00:02:17 00:05:00 0.456
GB79_dither OY 48 00:02:17 00:04:46 0.479
GB78_dither OY 48 00:02:17 00:05:03 0.453
GB60_dither OY 48 00:02:17 00:05:06 0.447
GB77_dither OY 48 00:02:17 00:04:43 0.484
GB76_dither OY 48 00:02:17 00:05:00 0.456
GB75_dither OY 48 00:02:17 00:05:11 0.440
GB74_dither OY 48 00:02:17 00:04:43 0.484
GB91_dither OY 48 00:02:17 00:04:49 0.474
GB92_dither OY 48 00:02:17 00:05:00 0.456
GB93_dither OY 48 00:02:17 00:04:49 0.474
GB95_dither OY 48 00:02:17 00:05:06 0.448
GB96_dither OY 48 00:02:17 00:05:09 0.444
GB97_dither OY 48 00:02:17 00:07:09 0.319
GB114_dither OY 48 00:02:17 00:04:49 0.474
GB113_dither OY 48 00:02:17 00:04:57 0.461
GB112_dither OY 48 00:02:17 00:04:46 0.479
GB111_dither OY 48 00:02:17 00:04:43 0.484
GB110_dither OY 48 00:02:17 00:04:46 0.479
GB109_dither OY 48 00:02:17 00:04:32 0.503
GB108_dither OY 48 00:02:17 00:04:46 0.479
GCsky_test 4 00:00:11 00:02:06 0.090










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 39:40:59 55:06:41 0.720

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 1960:38:46 1020:41:27 939:57:19 263:11:15 225:35:21 225:35:21 225:35:21 181:53:06
Observed 1426:32:08
(72.76%)		 905:15:00
(88.69%)		 521:17:08
(55.46%)		 121:35:37
(46.20%)		 115:58:53
(51.41%)		 203:04:55
(90.02%)		 80:37:41
(35.74%)		 181:53:06
(N/A)
Remaining 534:06:38
(27.24%)		 115:26:26
(11.31%)		 418:40:11
(44.54%)		 141:35:37
(53.80%)		 109:36:28
(48.59%)		 22:30:25
(9.98%)		 144:57:39
(64.26%)		 00:00:00
(N/A)











Camera status (2025/09/05)



Return to index
Previous day Next day