PRIME Observation Log 2025/03/31

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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: 2025/03/31
Local observer: Ryo Ogawa
Remote observer:
Weather: clear
Comment:
Detector Temperature: 113.99984 +- 0.00170 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:55:33
Morning 06:26:16
Science Observation
(Sun altitude < -10°)
Start 19:16:51
End 06:04:57
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 00:00:02
End 06:04:57


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 10:34:12 10:48:05 0.979
GB Time 05:41:04 06:04:54 0.935
Non-GB Time 04:53:08 04:43:11 1.035


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 3284 02:36:32 05:41:04 0.459
CALIB 480 00:22:52 00:43:28 0.526
NASA 1073 00:51:08 01:40:12 0.510
ALLSKY 2652 02:06:24 04:17:14 0.491
SAAO 663 00:31:36 01:04:18 0.491
OU 663 00:31:36 01:04:18 0.491
ABC 663 00:31:36 01:04:18 0.491


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 3236 02:34:14 05:35:16 0.460
TWILIGHT 480 00:22:52 00:43:28 0.526
ToO 410 00:19:32 00:35:54 0.544
all_sky_grid 2652 02:06:24 04:17:14 0.491
SKY 48 00:02:17 00:05:47 0.395


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB79_dither OH 52 00:02:28 00:06:43 0.368
FLAT_test ZO 8 00:00:22 00:01:30 0.253
FLAT ZO 472 00:22:29 00:41:58 0.536
field18073_test 10 00:00:28 00:01:38 0.289
field18073 400 00:19:04 00:34:15 0.557
field11202_test 12 00:00:34 00:04:10 0.137
field11202 40 00:01:54 00:03:47 0.503
field11203 40 00:01:54 00:03:50 0.497
field11204 40 00:01:54 00:03:47 0.503
field11205 40 00:01:54 00:03:47 0.503
field11206 40 00:01:54 00:03:47 0.503
field11207 40 00:01:54 00:03:47 0.503
field11208 40 00:01:54 00:03:47 0.503
field11209 40 00:01:54 00:03:47 0.503
field11210 40 00:01:54 00:03:50 0.497
field11211 40 00:01:54 00:03:50 0.497
field11212 40 00:01:54 00:03:50 0.497
field11213 40 00:01:54 00:03:52 0.491
field11214 40 00:01:54 00:03:52 0.491
field11215 40 00:01:54 00:03:47 0.503
field11216 40 00:01:54 00:03:47 0.503
field11217 40 00:01:54 00:03:47 0.503
field11218 40 00:01:54 00:03:47 0.503
field11219 40 00:01:54 00:03:47 0.503
field11220 40 00:01:54 00:03:47 0.503
field11221 40 00:01:54 00:03:50 0.497
field11222 40 00:01:54 00:03:50 0.497
field11223 40 00:01:54 00:03:50 0.497
field11224 40 00:01:54 00:03:47 0.503
field11225 40 00:01:54 00:03:58 0.480
field11226 40 00:01:54 00:03:52 0.491
field11227 40 00:01:54 00:03:55 0.485
field11228 40 00:01:54 00:03:55 0.485
field11229 40 00:01:54 00:03:52 0.491
field11230 40 00:01:54 00:03:50 0.497
field11231 40 00:01:54 00:03:47 0.503
field11232 40 00:01:54 00:03:47 0.503
field11233 40 00:01:54 00:03:47 0.503
field11234 40 00:01:54 00:03:47 0.503
field11235 40 00:01:54 00:03:50 0.497
field11236 40 00:01:54 00:03:50 0.497
field11237 40 00:01:54 00:03:47 0.503
field11238 40 00:01:54 00:03:50 0.497
field11239 40 00:01:54 00:03:47 0.503
field11240 40 00:01:54 00:03:47 0.503
field11241 40 00:01:54 00:03:47 0.503
field11242 40 00:01:54 00:03:47 0.503
field11243 40 00:01:54 00:03:52 0.491
field11244 40 00:01:54 00:03:52 0.491
field11245 40 00:01:54 00:03:52 0.491
field11246 40 00:01:54 00:03:50 0.497
field11247 40 00:01:54 00:03:50 0.497
field11248 40 00:01:54 00:03:50 0.497
field11249 40 00:01:54 00:03:50 0.497
field11250 40 00:01:54 00:03:47 0.503
field11251 40 00:01:54 00:03:47 0.503
field11252 40 00:01:54 00:03:47 0.503
field11253 40 00:01:54 00:03:47 0.503
field11254 40 00:01:54 00:03:47 0.503
field11255 40 00:01:54 00:03:47 0.503
field11256 40 00:01:54 00:03:47 0.503
field11257 40 00:01:54 00:03:47 0.503
field11258 40 00:01:54 00:03:47 0.503
field11259 40 00:01:54 00:03:47 0.503
field11260 40 00:01:54 00:03:47 0.503
field11261 40 00:01:54 00:03:47 0.503
field11262 40 00:01:54 00:03:50 0.497
field11263 40 00:01:54 00:03:55 0.485
field11264 40 00:01:54 00:03:55 0.485
field11265 40 00:01:54 00:03:50 0.497
field11266 40 00:01:54 00:03:52 0.491
field11267 40 00:01:54 00:04:34 0.416
GB63_dither_test OH 24 00:01:08 00:05:21 0.214
GB63_dither OH 48 00:02:17 00:04:52 0.470
GB62_dither OH 48 00:02:17 00:04:38 0.493
GB61_dither OH 48 00:02:17 00:04:38 0.493
GB60_dither OH 56 00:02:40 00:10:12 0.262
GB59_dither OH 48 00:02:17 00:04:41 0.488
GB58_dither OH 52 00:02:28 00:09:49 0.252
GB57_dither OH 48 00:02:17 00:05:37 0.407
GB74_dither OH 48 00:02:17 00:04:41 0.488
GB75_dither OH 48 00:02:17 00:04:35 0.498
GB76_dither OH 48 00:02:17 00:04:38 0.493
GB77_dither OH 48 00:02:17 00:04:38 0.493
GB78_dither OH 48 00:02:17 00:04:41 0.488
GB80_dither OH 48 00:02:17 00:04:43 0.484
GB97_dither OH 48 00:02:17 00:04:46 0.479
GB96_dither OH 24 00:01:08 00:02:19 0.493
GB95_dither OH 24 00:01:08 00:02:19 0.493
GB94_dither OH 48 00:02:17 00:04:52 0.470
GB93_dither OH 48 00:02:17 00:05:48 0.394
GB92_dither OH 48 00:02:17 00:04:46 0.479
GB91_dither OH 48 00:02:17 00:04:38 0.493
GB108_dither OH 48 00:02:17 00:04:43 0.484
GB109_dither OH 48 00:02:17 00:04:41 0.488
GB110_dither OH 48 00:02:17 00:04:49 0.474
GB111_dither OH 48 00:02:17 00:07:09 0.319
GB112_dither OH 24 00:01:08 00:02:16 0.503
GB113_dither OH 24 00:01:08 00:02:16 0.503
GB114_dither OH 48 00:02:17 00:04:46 0.479
GB131_dither OH 48 00:02:17 00:06:47 0.337
GB130_dither OH 24 00:01:08 00:02:19 0.493
GB129_dither OH 24 00:01:08 00:02:19 0.493
GB128_dither OH 24 00:01:08 00:02:19 0.493
GB127_dither OH 48 00:02:17 00:04:49 0.474
GB126_dither OH 48 00:02:17 00:04:41 0.488
GB125_dither OH 48 00:02:17 00:04:57 0.461
GCsky 48 00:02:17 00:05:47 0.395
GB63_dither_test OY 4 00:00:11 00:01:07 0.169
GB63_dither OY 48 00:02:17 00:04:32 0.503
GB62_dither OY 48 00:02:17 00:04:35 0.498
GB61_dither OY 48 00:02:17 00:04:35 0.498
GB60_dither OY 48 00:02:17 00:04:38 0.493
GB59_dither OY 48 00:02:17 00:04:32 0.504
GB58_dither OY 48 00:02:17 00:04:35 0.498
GB57_dither OY 48 00:02:17 00:04:35 0.498
GB74_dither OY 48 00:02:17 00:04:32 0.503
GB75_dither OY 48 00:02:17 00:04:32 0.503
GB76_dither OY 48 00:02:17 00:04:35 0.498
GB77_dither OY 48 00:02:17 00:04:35 0.498
GB78_dither OY 48 00:02:17 00:04:35 0.498
GB79_dither OY 48 00:02:17 00:04:35 0.498
GB80_dither OY 48 00:02:17 00:04:38 0.493
GB97_dither OY 48 00:02:17 00:04:32 0.503
GB96_dither OY 48 00:02:17 00:04:35 0.498
GB95_dither OY 48 00:02:17 00:04:35 0.498
GB94_dither OY 48 00:02:17 00:04:38 0.493
GB93_dither OY 48 00:02:17 00:04:38 0.493
GB92_dither OY 48 00:02:17 00:04:35 0.498
GB91_dither OY 48 00:02:17 00:04:32 0.503
GB108_dither OY 48 00:02:17 00:04:32 0.503
GB109_dither OY 48 00:02:17 00:04:38 0.493
GB110_dither OY 48 00:02:17 00:04:38 0.493
GB111_dither OY 48 00:02:17 00:04:35 0.498
GB112_dither OY 48 00:02:17 00:04:35 0.498
GB113_dither OY 48 00:02:17 00:04:35 0.498
GB114_dither OY 48 00:02:17 00:04:35 0.498
GB131_dither OY 48 00:02:17 00:04:38 0.493
GB130_dither OY 48 00:02:17 00:04:38 0.493
GB129_dither OY 48 00:02:17 00:04:38 0.493
GB128_dither OY 48 00:02:17 00:04:35 0.498
GB127_dither OY 48 00:02:17 00:04:32 0.503
GB126_dither OY 48 00:02:17 00:04:38 0.493
GB125_dither OY 48 00:02:17 00:04:55 0.465










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

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 1786:17:03 915:46:50 870:30:12 243:44:27 208:55:15 208:55:15 208:55:15 105:18:38
Observed 316:27:59
(17.72%)		 88:09:20
(9.63%)		 228:18:38
(26.23%)		 26:26:02
(10.85%)		 56:17:51
(26.95%)		 123:01:17
(58.88%)		 22:33:27
(10.80%)		 105:18:38
(N/A)
Remaining 1469:49:04
(82.28%)		 827:37:30
(90.37%)		 642:11:34
(73.77%)		 217:18:25
(89.15%)		 152:37:23
(73.05%)		 85:53:57
(41.12%)		 186:21:47
(89.20%)		 00:00:00
(N/A)











Camera status (2025/03/31)