PRIME Observation Log 2025/07/10

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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: 2025/07/10
Local observer: Takuto
Remote observer: None
Weather: Clear
Comment:
Detector Temperature: 114.00034 +- 0.00523 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:11:04
Morning 07:13:14
Science Observation
(Sun altitude < -10°)
Start 18:33:58
End 06:50:22
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:33:58
End 04:52:15


Observed Fraction
Actually Observed Time
(hh:mm:ss)
Expected Observation Time
(hh:mm:ss)
Observed Fraction
(observed/expected)
Total Time 07:31:08 12:16:24 0.613
GB Time 07:31:08 10:18:17 0.730
Non-GB Time 00:00:00 01:58:06 0.000


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss)
Total Observation
(hh:mm:ss)
Efficiency
(exp./obs.)
CALIB 200 00:09:32 00:18:58 0.502
GB 4408 03:30:06 07:31:08 0.466


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss)
Total Observation
(hh:mm:ss)
Efficiency
(exp./obs.)
TWILIGHT 200 00:09:32 00:18:58 0.502
Bulge 4312 03:25:32 07:18:57 0.468
SKY 96 00:04:34 00:12:10 0.376


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss)
Total Observation
(hh:mm:ss)
Efficiency
(exp./obs.)
FLAT OH 200 00:09:32 00:18:58 0.502
GB76_dither_test OH 20 00:00:57 00:07:21 0.130
GB83_dither_test OJ 20 00:00:57 00:05:18 0.180
GB83_dither OJ 48 00:02:17 00:04:38 0.493
GB82_dither OJ 48 00:02:17 00:04:32 0.503
GB81_dither OJ 48 00:02:17 00:04:35 0.498
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:32 0.503
GB77_dither OJ 48 00:02:17 00:04:32 0.503
GB76_dither OJ 48 00:02:17 00:04:38 0.493
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB74_dither OJ 48 00:02:17 00:04:38 0.493
GB73_dither OJ 48 00:02:17 00:04:32 0.503
GB72_dither OJ 48 00:02:17 00:04:35 0.498
GB71_dither OJ 48 00:02:17 00:04:41 0.488
GCsky 96 00:04:34 00:12:10 0.376
GB88_dither OJ 48 00:02:17 00:04:38 0.493
GB89_dither OJ 48 00:02:17 00:04:38 0.493
GB90_dither OJ 48 00:02:17 00:04:35 0.498
GB91_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:32 0.503
GB93_dither OJ 48 00:02:17 00:04:35 0.498
GB94_dither OJ 48 00:02:17 00:04:38 0.493
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:05:45 0.397
GB76_dither OH 336 00:16:00 00:33:13 0.482
GB77_dither OH 336 00:16:00 00:33:24 0.479
GB78_dither OH 360 00:17:09 00:39:44 0.432
GB94_dither OH 336 00:16:00 00:33:04 0.484
GB111_dither OH 312 00:14:52 00:30:25 0.489
GB110_dither OH 336 00:16:00 00:33:23 0.480
GB109_dither OH 168 00:08:00 00:17:55 0.447
GB92_dither OH 96 00:04:34 00:09:25 0.486
GB93_dither OH 96 00:04:34 00:09:33 0.479
GB75_dither OH 168 00:08:00 00:16:44 0.479
GB112_dither OH 120 00:05:43 00:11:44 0.487
GB79_dither OH 120 00:05:43 00:12:12 0.469
GB60_dither OH 72 00:03:25 00:07:17 0.471
GB108_dither OH 24 00:01:08 00:02:21 0.484
GB91_dither OH 24 00:01:08 00:02:21 0.484
GB74_dither OH 24 00:01:08 00:02:19 0.493
GB95_dither OH 72 00:03:25 00:07:08 0.480
GB113_dither OH 72 00:03:25 00:07:11 0.477
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB80_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:21 0.484
GB114_dither OH 24 00:01:08 00:02:52 0.397










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 49:12:57 123:10:28 0.400

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 1848:30:00 941:09:56 907:20:03 254:03:13 217:45:36 217:45:36 217:45:36 157:07:14
Observed 981:01:37
(53.07%)
593:49:01
(63.09%)
387:12:35
(42.68%)
64:42:34
(25.47%)
91:53:50
(42.20%)
174:03:31
(79.93%)
56:32:39
(25.97%)
157:07:14
(N/A)
Remaining 867:28:22
(46.93%)
347:20:54
(36.91%)
520:07:28
(57.32%)
189:20:38
(74.53%)
125:51:46
(57.80%)
43:42:05
(20.07%)
161:12:57
(74.03%)
00:00:00
(N/A)











Camera status (2025/07/10)



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