PRIME Observation Log 2025/05/08

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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: 2025/05/08
Local observer:
Remote observer: Ryusei Hamada, Yui Okumoto
Weather: Cloudy
Comment:
Detector Temperature: 114.00013 +- 0.00287 K
ImageAcquisitionErrors occurred 2 times @
2025-05-08 20:59:05 SAT
2025-05-09 02:59:19 SAT

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:15:12
Morning 06:51:33
Science Observation
(Sun altitude < -10°)
Start 18:37:20
End 06:29:24
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 21:30:39
End 06:29:24


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 10:43:22 11:52:04 0.904
GB Time 09:03:42 08:58:44 1.009
Non-GB Time 01:39:40 02:53:19 0.575


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 204 00:09:43 00:27:55 0.348
GB 4912 03:54:08 09:03:42 0.431
SAAO 221 00:10:32 00:24:55 0.423
OU 221 00:10:32 00:24:55 0.423
NASA 221 00:10:32 00:24:55 0.423
ABC 221 00:10:32 00:24:55 0.423


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 204 00:09:43 00:27:55 0.348
all_sky_grid 884 00:42:08 01:39:40 0.423
Bulge 4768 03:47:16 08:39:56 0.437
SKY 144 00:06:51 00:23:46 0.289


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OJ 196 00:09:20 00:23:56 0.390
field23158_test 8 00:00:22 00:06:44 0.057
field23158 40 00:01:54 00:03:50 0.497
field23159 40 00:01:54 00:04:29 0.425
field15545 40 00:01:54 00:05:36 0.340
field9200 40 00:01:54 00:04:20 0.438
field10043 40 00:01:54 00:04:20 0.438
field8915 40 00:01:54 00:03:47 0.503
field8916 40 00:01:54 00:04:23 0.434
field9201 40 00:01:54 00:03:49 0.498
field9488 40 00:01:54 00:04:12 0.453
field9489 40 00:01:54 00:03:50 0.497
field9779 40 00:01:54 00:04:09 0.458
field9780 40 00:01:54 00:04:57 0.385
field8331 40 00:01:54 00:04:15 0.448
field6491 40 00:01:54 00:04:18 0.443
field6492 40 00:01:54 00:03:50 0.497
field6493 40 00:01:54 00:03:58 0.480
field6748 40 00:01:54 00:04:23 0.434
field6749 40 00:01:54 00:04:04 0.469
field7008 40 00:01:54 00:03:55 0.485
field7009 40 00:01:54 00:04:06 0.463
field7010 40 00:01:54 00:04:04 0.469
field7272 36 00:01:42 00:04:11 0.410
GB63_dither_test OJ 12 00:00:34 00:07:40 0.075
GB63_dither OJ 48 00:02:17 00:05:09 0.444
GB62_dither OJ 48 00:02:17 00:05:09 0.444
GB61_dither OJ 48 00:02:17 00:05:20 0.429
GB60_dither OJ 48 00:02:17 00:05:06 0.448
GB59_dither OJ 48 00:02:17 00:04:52 0.470
GB58_dither OJ 48 00:02:17 00:04:52 0.470
GB57_dither OJ 48 00:02:17 00:04:49 0.474
GB74_dither OJ 48 00:02:17 00:04:51 0.471
GB75_dither OJ 48 00:02:17 00:04:56 0.463
GB76_dither OJ 48 00:02:17 00:04:49 0.474
GB77_dither OJ 48 00:02:17 00:04:41 0.488
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:05:03 0.452
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:04:55 0.465
GB96_dither OJ 48 00:02:17 00:04:54 0.466
GB95_dither OJ 48 00:02:17 00:04:50 0.473
GB94_dither OJ 48 00:02:17 00:04:32 0.503
GB93_dither OJ 48 00:02:17 00:04:42 0.485
GB92_dither OJ 48 00:02:17 00:04:39 0.491
GB91_dither OJ 48 00:02:17 00:04:41 0.488
GB108_dither OJ 48 00:02:17 00:04:43 0.484
GB109_dither OJ 48 00:02:17 00:04:55 0.465
GB110_dither OJ 48 00:02:17 00:04:41 0.488
GB111_dither OJ 48 00:02:17 00:04:49 0.474
GB112_dither OJ 48 00:02:17 00:04:52 0.470
GB113_dither OJ 48 00:02:17 00:04:38 0.493
GB114_dither OJ 48 00:02:17 00:04:43 0.484
GB131_dither OJ 48 00:02:17 00:05:06 0.448
GB130_dither OJ 48 00:02:17 00:05:20 0.429
GB129_dither OJ 48 00:02:17 00:04:35 0.498
GB128_dither OJ 48 00:02:17 00:04:35 0.498
GB127_dither OJ 48 00:02:17 00:05:28 0.418
GB126_dither OJ 48 00:02:17 00:04:57 0.461
GB125_dither OJ 48 00:02:17 00:05:28 0.418
GCsky 144 00:06:51 00:23:46 0.289
GB63_dither OH 96 00:04:34 00:09:44 0.470
GB62_dither OH 96 00:04:34 00:09:16 0.493
GB61_dither OH 96 00:04:34 00:09:38 0.474
GB60_dither OH 96 00:04:34 00:09:39 0.474
GB59_dither OH 96 00:04:34 00:09:22 0.488
GB58_dither OH 96 00:04:34 00:09:41 0.472
GB57_dither OH 96 00:04:34 00:09:53 0.463
GB74_dither OH 96 00:04:34 00:09:47 0.467
GB75_dither OH 96 00:04:34 00:09:41 0.472
GB76_dither OH 96 00:04:34 00:09:36 0.476
GB77_dither OH 96 00:04:34 00:10:21 0.442
GB78_dither OH 96 00:04:34 00:10:04 0.454
GB79_dither OH 96 00:04:34 00:09:53 0.463
GB80_dither OH 108 00:05:08 00:17:19 0.297
GB80_test OH 4 00:00:11 00:03:24 0.056
GB97_dither OH 96 00:04:34 00:09:53 0.463
GB96_dither OH 96 00:04:34 00:09:41 0.472
GB95_dither OH 96 00:04:34 00:10:15 0.446
GB94_dither OH 96 00:04:34 00:09:50 0.465
GB93_dither OH 96 00:04:34 00:09:33 0.479
GB92_dither OH 96 00:04:34 00:09:27 0.484
GB91_dither OH 96 00:04:34 00:09:36 0.476
GB108_dither OH 72 00:03:25 00:07:03 0.487
GB109_dither OH 72 00:03:25 00:07:00 0.490
GB110_dither OH 72 00:03:25 00:07:31 0.457
GB111_dither OH 72 00:03:25 00:08:41 0.395
GB112_dither OH 88 00:04:11 00:15:33 0.270
GB113_dither OH 72 00:03:25 00:07:05 0.484
GB114_dither OH 72 00:03:25 00:07:17 0.471
GB131_dither OH 72 00:03:25 00:07:47 0.440
GB130_dither OH 72 00:03:25 00:07:05 0.484
GB129_dither OH 72 00:03:25 00:07:08 0.480
GB128_dither OH 72 00:03:25 00:07:31 0.456
GB127_dither OH 72 00:03:25 00:08:29 0.404
GB126_dither OH 72 00:03:25 00:07:16 0.471
GB125_dither OH 72 00:03:25 00:07:54 0.434
GB113_test OH 8 00:00:22 00:05:28 0.070
GB111_test OH 12 00:00:34 00:06:33 0.087
FLAT_test OJ 8 00:00:22 00:03:58 0.096










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 74:27:48 94:17:20 0.790

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 1805:34:23 919:54:59 885:39:23 247:59:01 212:33:27 212:33:27 212:33:27 134:07:13
Observed 551:58:25
(30.57%)		 236:08:00
(25.67%)		 315:50:25
(35.66%)		 45:27:29
(18.33%)		 74:13:18
(34.92%)		 155:40:42
(73.24%)		 40:28:54
(19.05%)		 134:07:13
(N/A)
Remaining 1253:35:57
(69.43%)		 683:46:58
(74.33%)		 569:48:58
(64.34%)		 202:31:32
(81.67%)		 138:20:08
(65.08%)		 56:52:45
(26.76%)		 172:04:32
(80.95%)		 00:00:00
(N/A)











Camera status (2025/05/08)



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