PRIME Observation Log 2025/07/02

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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: 2025/07/02
Local observer: Takuto
Remote observer: None
Weather: Clear
Comment:
Detector Temperature: 114.00002 +- 0.00155 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:07:25
Morning 07:14:24
Science Observation
(Sun altitude < -10°)
Start 18:30:28
End 06:51:21
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:30:28
End 05:23:42


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 04:20:47 12:20:52 0.352
GB Time 04:00:55 10:53:13 0.369
Non-GB Time 00:19:52 01:27:38 0.227


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 2340 01:51:32 04:00:55 0.463
SAAO 43 00:02:02 00:04:58 0.413
OU 43 00:02:02 00:04:58 0.413
NASA 43 00:02:02 00:04:58 0.413
ABC 43 00:02:02 00:04:58 0.413


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 2292 01:49:15 03:55:48 0.463
SKY 48 00:02:17 00:05:06 0.448
all_sky_grid 172 00:08:11 00:19:52 0.413


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB76_dither_test OH 16 00:00:45 00:05:34 0.137
GB76_dither OH 168 00:08:00 00:16:11 0.495
GB77_dither OH 168 00:08:00 00:16:16 0.492
GB78_dither OH 168 00:08:00 00:16:16 0.492
GB94_dither OH 168 00:08:00 00:16:22 0.489
GB111_dither OH 168 00:08:00 00:16:33 0.484
GB110_dither OH 168 00:08:00 00:17:26 0.459
GB109_dither OH 72 00:03:25 00:07:03 0.487
GB92_dither OH 48 00:02:17 00:04:38 0.493
GB93_dither OH 48 00:02:17 00:04:38 0.493
GB75_dither OH 72 00:03:25 00:06:57 0.493
GB112_dither OH 72 00:03:25 00:06:57 0.493
GB79_dither OH 72 00:03:25 00:07:31 0.456
GB60_dither OH 48 00:02:17 00:04:38 0.493
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB74_dither OH 24 00:01:08 00:02:21 0.484
GB95_dither OH 24 00:01:08 00:02:19 0.493
GB113_dither OH 24 00:01:08 00:02:19 0.493
GCsky 48 00:02:17 00:05:06 0.448
GB74_dither_test OJ 12 00:00:34 00:07:06 0.080
GB74_dither OJ 48 00:02:17 00:04:32 0.503
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB76_dither OJ 48 00:02:17 00:04:38 0.493
GB77_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:32 0.503
GB80_dither OJ 48 00:02:17 00:04:32 0.503
GB97_dither OJ 48 00:02:17 00:04:38 0.493
GB96_dither OJ 48 00:02:17 00:04:32 0.503
GB95_dither OJ 48 00:02:17 00:04:35 0.498
GB94_dither OJ 48 00:02:17 00:04:38 0.493
GB93_dither OJ 48 00:02:17 00:04:35 0.498
GB92_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:35 0.498
GB109_dither OJ 32 00:01:31 00:05:41 0.268
field8979_test 16 00:00:45 00:04:38 0.164
field8979 40 00:01:54 00:03:50 0.497
field8980 40 00:01:54 00:03:50 0.497
field8981 40 00:01:54 00:03:50 0.497
field8982 36 00:01:42 00:03:43 0.461










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 10:59:34 24:42:10 0.445

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 1859:30:47 949:51:51 909:38:56 254:42:06 218:18:56 218:18:56 218:18:56 155:37:34
Observed 942:48:15
(50.70%)		 560:16:25
(58.98%)		 382:31:50
(42.05%)		 63:32:23
(24.95%)		 90:43:38
(41.56%)		 172:53:20
(79.19%)		 55:22:27
(25.36%)		 155:37:34
(N/A)
Remaining 916:42:31
(49.30%)		 389:35:25
(41.02%)		 527:07:06
(57.95%)		 191:09:42
(75.05%)		 127:35:17
(58.44%)		 45:25:36
(20.81%)		 162:56:28
(74.64%)		 00:00:00
(N/A)











Camera status (2025/07/02)



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