PRIME Observation Log 2025/06/04

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: 2025/06/04
Local observer: Ryusei
Remote observer:
Weather: high humidity
Comment:
Detector Temperature: 114.00002 +- 0.00110 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:02:58
Morning 07:07:37
Science Observation
(Sun altitude < -10°)
Start 18:25:55
End 06:44:38
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 19:44:30
End 06:44:38


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 11:32:22 12:18:42 0.937
GB Time 10:48:47 11:00:08 0.983
Non-GB Time 00:43:34 01:18:34 0.555


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 380 00:18:06 00:46:05 0.393
SAAO 362 00:17:15 00:43:34 0.396
GB 6344 05:02:23 10:48:47 0.466


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 380 00:18:06 00:46:05 0.393
ToO 362 00:17:15 00:43:34 0.396
Bulge 6104 04:50:57 10:18:52 0.470
SKY 240 00:11:26 00:29:55 0.382


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT_test NY 20 00:00:57 00:12:27 0.077
FLAT NY 360 00:17:09 00:33:38 0.510
field1351_test 62 00:02:57 00:16:20 0.181
field1351 300 00:14:18 00:27:14 0.525
GB81_test OJ 24 00:01:08 00:10:52 0.105
GB81_dither OJ 48 00:02:17 00:04:38 0.493
GB98_dither OJ 48 00:02:17 00:04:32 0.503
GB115_dither OJ 48 00:02:17 00:04:38 0.493
GB77_dither OJ 240 00:11:26 00:23:11 0.493
GB94_dither OJ 192 00:09:09 00:23:10 0.395
GB111_dither OJ 144 00:06:51 00:14:14 0.482
GB76_dither OJ 240 00:11:26 00:23:11 0.493
GB93_dither OJ 144 00:06:51 00:13:49 0.497
GB110_dither OJ 144 00:06:51 00:15:02 0.456
GB75_dither OJ 96 00:04:34 00:09:22 0.488
GB92_dither OJ 96 00:04:34 00:09:11 0.498
GB109_dither OJ 96 00:04:34 00:09:27 0.484
GB74_dither OJ 104 00:04:57 00:10:32 0.470
GB91_dither OJ 96 00:04:34 00:09:13 0.496
GB108_dither OJ 96 00:04:34 00:09:36 0.476
GCsky 240 00:11:26 00:29:55 0.382
GB80_dither OJ 96 00:04:34 00:09:11 0.498
GB79_dither OJ 96 00:04:34 00:09:30 0.481
GB78_dither OJ 144 00:06:51 00:14:00 0.490
GB96_dither OJ 96 00:04:34 00:09:11 0.498
GB113_dither OJ 96 00:04:34 00:09:13 0.496
GB95_dither OJ 144 00:06:51 00:13:49 0.497
GB112_dither OJ 96 00:04:34 00:09:22 0.488
GB74_dither OY 48 00:02:17 00:04:35 0.498
GB75_dither OY 48 00:02:17 00:04:38 0.493
GB76_dither OY 48 00:02:17 00:04:35 0.498
GB77_dither OY 48 00:02:17 00:04:32 0.503
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 00:04:38 0.493
GB96_dither OY 48 00:02:17 00:04:38 0.493
GB95_dither OY 48 00:02:17 00:04:38 0.493
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 00:04:32 0.503
GB91_dither OY 48 00:02:17 00:04:35 0.498
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 00:04:35 0.498
GB111_dither OY 48 00:02:17 00:04:38 0.493
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 00:05:09 0.444
GB76_dither OH 264 00:12:35 00:26:01 0.483
GB77_dither OH 264 00:12:35 00:26:09 0.481
GB78_dither OH 264 00:12:35 00:26:12 0.480
GB94_dither OH 264 00:12:35 00:26:04 0.483
GB111_dither OH 264 00:12:35 00:26:26 0.476
GB110_dither OH 264 00:12:35 00:26:49 0.469
GB109_dither OH 120 00:05:43 00:11:58 0.478
GB92_dither OH 72 00:03:25 00:07:08 0.480
GB93_dither OH 72 00:03:25 00:07:11 0.477
GB75_dither OH 120 00:05:43 00:13:11 0.434
GB112_dither OH 120 00:05:43 00:12:01 0.476
GB79_dither OH 120 00:05:43 00:16:27 0.348
GB60_dither OH 72 00:03:25 00:07:19 0.468
GB113_dither OH 48 00:02:17 00:04:55 0.465
GB95_dither OH 48 00:02:17 00:04:49 0.474
GB97_dither OJ 48 00:02:17 00:04:43 0.484
GB114_dither OJ 48 00:02:17 00:05:00 0.456










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 37:51:30 49:11:09 0.770

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 1849:33:39 953:38:49 895:54:49 250:51:21 215:01:09 215:01:09 215:01:09 147:31:42
Observed 759:40:31
(41.07%)		 405:19:25
(42.50%)		 354:21:05
(39.55%)		 56:29:42
(22.52%)		 83:40:57
(38.92%)		 165:50:39
(77.13%)		 48:19:46
(22.48%)		 147:31:42
(N/A)
Remaining 1089:53:07
(58.93%)		 548:19:23
(57.50%)		 541:33:44
(60.45%)		 194:21:38
(77.48%)		 131:20:11
(61.08%)		 49:10:30
(22.87%)		 166:41:22
(77.52%)		 00:00:00
(N/A)











Camera status (2025/06/04)



Return to index
Previous day Next day