PRIME Observation Log 2025/06/28

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: 2025/06/28
Local observer: Takuto
Remote observer: None
Weather: Clear
Comment:
Detector Temperature: 114.00009 +- 0.00152 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:05:54
Morning 07:14:24
Science Observation
(Sun altitude < -10°)
Start 18:29:00
End 06:51:18
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:29:00
End 05:39:26


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:22:18 12:22:18 0.758
GB Time 07:40:29 11:10:25 0.687
Non-GB Time 01:41:48 01:11:52 1.416


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 4412 03:30:18 07:40:29 0.457
CALIB 204 00:09:43 00:23:24 0.415
SAAO 220 00:10:29 00:25:27 0.412
OU 220 00:10:29 00:25:27 0.412
NASA 220 00:10:29 00:25:27 0.412
ABC 220 00:10:29 00:25:27 0.412


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 4264 03:23:15 07:14:45 0.468
SKY 148 00:07:03 00:25:44 0.274
all_sky_grid 880 00:41:56 01:41:48 0.412
TWILIGHT 204 00:09:43 00:23:24 0.415


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB83_dither_test OH 4 00:00:11 00:00:25 0.448
GB100_dither_test OH 4 00:00:11 00:00:25 0.448
GB117_dither_test OH 4 00:00:11 00:00:31 0.368
GCsky_test 4 00:00:11 00:07:53 0.024
test2 8 00:00:22 00:11:01 0.035
test3 12 00:00:34 00:01:38 0.349
GB80_dither_test OJ 24 00:01:08 00:10:52 0.105
GB80_dither OJ 48 00:02:17 00:04:32 0.503
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB77_dither OJ 48 00:02:17 00:04:38 0.493
GB76_dither OJ 48 00:02:17 00:04:32 0.503
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB74_dither OJ 48 00:02:17 00:04:41 0.488
GCsky 144 00:06:51 00:17:50 0.385
GB76_dither_test OH 12 00:00:34 00:03:42 0.154
GB76_dither OH 312 00:14:52 00:30:39 0.485
GB77_dither OH 288 00:13:43 00:28:03 0.489
GB78_dither OH 288 00:13:43 00:28:01 0.490
GB94_dither OH 288 00:13:43 00:28:19 0.485
GB111_dither OH 296 00:14:06 00:30:27 0.463
GB110_dither OH 288 00:13:43 00:28:06 0.488
GB109_dither OH 144 00:06:51 00:13:57 0.492
GB92_dither OH 72 00:03:25 00:06:57 0.493
GB93_dither OH 72 00:03:25 00:07:00 0.490
GB75_dither OH 144 00:06:51 00:13:57 0.492
GB112_dither OH 144 00:06:51 00:14:00 0.490
GB79_dither OH 144 00:06:51 00:16:03 0.427
GB60_dither OH 72 00:03:25 00:06:54 0.497
GB95_dither OH 72 00:03:25 00:07:05 0.484
GB113_dither OH 72 00:03:25 00:07:03 0.487
GB74_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB108_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 00:02:21 0.483
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:33 0.448
GB91_dither_test OJ 8 00:00:22 00:02:15 0.169
GB91_dither OJ 48 00:02:17 00:04:32 0.503
GB92_dither OJ 48 00:02:17 00:04:32 0.503
GB93_dither OJ 48 00:02:17 00:04:41 0.488
GB94_dither OJ 48 00:02:17 00:04:38 0.493
GB95_dither OJ 48 00:02:17 00:04:38 0.493
GB96_dither OJ 48 00:02:17 00:04:41 0.488
GB97_dither OJ 48 00:02:17 00:04:38 0.493
GB114_dither OJ 48 00:02:17 00:04:38 0.493
GB113_dither OJ 48 00:02:17 00:04:41 0.488
GB112_dither OJ 48 00:02:17 00:04:32 0.503
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:38 0.493
GB109_dither OJ 48 00:02:17 00:04:35 0.498
GB108_dither OJ 48 00:02:17 00:04:35 0.498
GB73_dither OJ 48 00:02:17 00:04:43 0.484
GB72_dither OJ 48 00:02:17 00:04:41 0.488
GB71_dither OJ 48 00:02:17 00:04:38 0.493
GB88_dither OJ 48 00:02:17 00:04:38 0.493
GB89_dither OJ 48 00:02:17 00:04:32 0.503
GB107_dither OJ 48 00:02:17 00:04:38 0.493
GB106_dither OJ 48 00:02:17 00:08:33 0.267
field7590_test 20 00:00:57 00:06:25 0.148
field7590 40 00:01:54 00:03:50 0.497
field7591 40 00:01:54 00:03:47 0.503
field7592 40 00:01:54 00:03:50 0.497
field7593 40 00:01:54 00:03:50 0.497
field7594 40 00:01:54 00:03:55 0.485
field7595 40 00:01:54 00:03:52 0.491
field7596 40 00:01:54 00:03:47 0.503
field7597 40 00:01:54 00:03:50 0.497
field7598 40 00:01:54 00:03:47 0.503
field7599 40 00:01:54 00:03:55 0.485
field7600 40 00:01:54 00:03:55 0.485
field7601 40 00:01:54 00:03:50 0.497
field7602 40 00:01:54 00:03:50 0.497
field7603 40 00:01:54 00:03:52 0.491
field7604 40 00:01:54 00:03:55 0.485
field7605 40 00:01:54 00:03:50 0.497
field7606 40 00:01:54 00:03:50 0.497
field7607 40 00:01:54 00:04:01 0.474
field7608 40 00:01:54 00:03:55 0.485
field7609 40 00:01:54 00:03:50 0.497
field7610 40 00:01:54 00:05:25 0.352
FLAT_test OJ 4 00:00:11 00:06:04 0.031
FLAT OJ 200 00:09:32 00:17:20 0.550










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 185:32:06 346:06:31 0.536

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 1848:46:35 941:11:17 907:35:17 254:07:28 217:49:16 217:49:16 217:49:16 153:43:10
Observed 907:21:08
(49.08%)		 529:36:28
(56.27%)		 377:44:39
(41.62%)		 62:20:35
(24.53%)		 89:31:51
(41.10%)		 171:41:32
(78.82%)		 54:10:40
(24.87%)		 153:43:10
(N/A)
Remaining 941:25:27
(50.92%)		 411:34:49
(43.73%)		 529:50:38
(58.38%)		 191:46:53
(75.47%)		 128:17:24
(58.90%)		 46:07:43
(21.18%)		 163:38:36
(75.13%)		 00:00:00
(N/A)











Camera status (2025/06/28)



Return to index
Previous day Next day