PRIME Observation Log 2025/06/10

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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: 2025/06/10
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 113.99996 +- 0.00160 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:02:34
Morning 07:10:15
Science Observation
(Sun altitude < -10°)
Start 18:25:37
End 06:47:10
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:20:55
End 06:47:10


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:21:38 12:21:32 0.919
GB Time 11:21:38 11:26:15 0.993
Non-GB Time 00:00:00 00:55:17 0.000


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 392 00:18:41 00:48:57 0.382
GB 6188 04:54:57 11:21:38 0.433


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 392 00:18:41 00:48:57 0.382
Bulge 5968 04:44:28 10:50:18 0.437
SKY 220 00:10:29 00:31:20 0.335


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test OJ 16 00:00:45 00:15:40 0.049
FLAT OJ 376 00:17:55 00:33:16 0.538
GB82_test OH 4 00:00:11 00:08:58 0.021
GB82_test OJ 28 00:01:20 00:12:44 0.105
GB81_dither OJ 48 00:02:17 00:04:38 0.493
GB98_dither OJ 48 00:02:17 00:04:35 0.498
GB115_dither OJ 48 00:02:17 00:05:09 0.444
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB97_dither OJ 48 00:02:17 00:04:32 0.503
GB114_dither OJ 48 00:02:17 00:04:35 0.498
GB113_dither OJ 48 00:02:17 00:04:38 0.493
GB96_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:38 0.493
GB78_dither OJ 48 00:02:17 00:04:38 0.493
GB95_dither OJ 48 00:02:17 00:04:32 0.503
GB112_dither OJ 48 00:02:17 00:06:50 0.335
GCsky 216 00:10:17 00:29:42 0.347
GCsky_test 4 00:00:11 00:01:38 0.116
GB76_test OH 16 00:00:45 00:11:50 0.064
GB76_dither OH 552 00:26:18 00:56:00 0.470
GB77_dither OH 520 00:24:47 00:57:17 0.433
GB78_dither OH 504 00:24:01 00:49:41 0.484
GB94_dither OH 504 00:24:01 00:49:10 0.489
GB111_dither OH 504 00:24:01 00:49:57 0.481
GB110_dither OH 504 00:24:01 00:50:03 0.480
GB109_dither OH 264 00:12:35 00:26:09 0.481
GB92_dither OH 144 00:06:51 00:14:11 0.484
GB93_dither OH 144 00:06:51 00:14:20 0.479
GB75_dither OH 264 00:12:35 00:25:58 0.484
GB112_dither OH 240 00:11:26 00:23:53 0.479
GB79_dither OH 240 00:11:26 00:25:59 0.440
GB60_dither OH 120 00:05:43 00:11:58 0.478
GB95_dither OH 120 00:05:43 00:12:12 0.469
GB113_dither OH 120 00:05:43 00:11:58 0.478
GB77_test OJ 24 00:01:08 00:11:03 0.103
GB77_dither OJ 48 00:02:17 00:04:35 0.498
GB76_dither OJ 48 00:02:17 00:04:41 0.488
GB75_dither OJ 48 00:02:17 00:04:41 0.488
GB74_dither OJ 48 00:02:17 00:04:35 0.498
GB91_dither OJ 48 00:02:17 00:04:38 0.493
GB92_dither OJ 48 00:02:17 00:04:41 0.488
GB93_dither OJ 48 00:02:17 00:04:43 0.484
GB94_dither OJ 48 00:02:17 00:04:35 0.498
GB111_dither OJ 48 00:02:17 00:04:35 0.498
GB110_dither OJ 48 00:02:17 00:04:41 0.488
GB109_dither OJ 48 00:02:17 00:04:35 0.498
GB108_dither OJ 48 00:02:17 00:17:43 0.129










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 66:20:48 123:13:57 0.538

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 1841:01:34 945:45:31 895:16:02 250:40:29 214:51:51 214:51:51 214:51:51 149:11:31
Observed 788:09:50
(42.81%)		 431:12:21
(45.59%)		 356:57:28
(39.87%)		 57:08:47
(22.80%)		 84:20:03
(39.25%)		 166:29:44
(77.49%)		 48:58:52
(22.80%)		 149:11:31
(N/A)
Remaining 1052:51:44
(57.19%)		 514:33:09
(54.41%)		 538:18:34
(60.13%)		 193:31:41
(77.20%)		 130:31:47
(60.75%)		 48:22:06
(22.51%)		 165:52:58
(77.20%)		 00:00:00
(N/A)











Camera status (2025/06/10)



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