gv30805 Data Log
gv30805.datalog: Reduction Log for gv30805
Reducer: Andrzej
File: /wet/xcov23/kpd1930/raw/gv30805
File format: Quilt 9
Reduction date & time: 25 August 2003 02:34:51
Observers: GV
Run name: gv30805
Acquisition software: Quilt 9
Extraction software: Quilt 9
Object: KPD 1930+2752
Observatory: Observatoire Haute-Provence
Telescope: 1.93m
Number of channels: 3
Number of data points: 2490
TIME INFORMATION
Start Date & time (UT): 24 August 2003 21:00:00.000
Exposure time (s): 5.000000
Readout time (s): 0.000000
Cycle time (s): 0.000000
Drift (s): 0.000000
File time format: TIME_PMT_SYSTEM
PHOTOMETER INFORMATION
Photometer name: Chevreton
Photometer type: PMT
Filter: CLEAR
Aperture setup: One sky for all apertures
Aperture size (pixels): 0.000000
Aperture shape: Circle
Aperture scaling: 1.00 1.00 1.00
CHANNEL INFORMATION
Channel 1: DATA CHANNEL SKY: Channel 3
Channel 2: COMP CHANNEL SKY: Channel 3
Channel 3: SKY CHANNEL Smoothing: 5
REDUCTION OPERATIONS SUMMARY
Reduction started: 25 August 2003 02:34:51 UTC
DEAD TIME REDUCTION: Channels 1 2 3
MATH: SUBTRACTION Channel 3
SKY SUBTRACTION: Channels 1 2
EXTINCTION: Channels 1 2
SKY DIVISION: Channels 1
CHANNEL 1 OPERATIONS
DEAD: Ch 1 Time = 15.00ns Maximum loss is 0.258% at point 827
SKY_SUB: Channel 3 subtracted, smoothed by 5, sky ratio 1.140100
EXTINC: Channel 1 extinction coefficient 0.150000
SKY_DIV: Ch 1 divided by all comparison channels, smoothing factor 1
Channel 1 average data value: 53916.900
Channel 1 barycentric correction: 290.158
Channel 1 leap second correction: 64.184
CHANNEL 2 OPERATIONS
DEAD: Ch 2 Time = 15.00ns Maximum loss is 0.657% at point 1642
SKY_SUB: Channel 3 subtracted, smoothed by 5, sky ratio 0.945247
EXTINC: Channel 2 extinction coefficient 0.150000
Channel 2 average data value: 180686.560
Channel 2 barycentric correction: 290.158
Channel 2 leap second correction: 64.184
CHANNEL 3 OPERATIONS
DEAD: Ch 3 Time = 15.00ns Maximum loss is 0.096% at point 1971
MATH: SUBTRACTION Range 44-2489 Value 577.000000
Channel 3 average data value: 25093.944
Channel 3 barycentric correction: 290.158
Channel 3 leap second correction: 64.184
SKY POINTS
CH 1 CH 2 CH 3
========================================================================
0
1
2
3
4
5
6
7
8
9
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11
12
13
14
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18
19
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GARBAGE POINTS
CH 1 CH 2 CH 3
========================================================================
0 37 38
1 38 39
2 39 40
3 2420 41
4 2431 42
5 2435 43
6 2438
7 2445
8 2446
9 2449
10 2450
11 2451
12 2452
13 2453
14 2454
15 2455
16 2456
17 2457
18 2458
19 2459
20 2460
21 2461
22 2462
23 2463
24 2464
25 2465
26 2466
27 2467
28 2468
29 2469
30 2470
31 2471
32 2472
33 2473
34 2474
35 2475
36 2476
37 2477
38 2478
39 2479
549 2480
712 2481
728 2482
735 2483
737 2484
756 2485
770 2486
774 2487
790 2488
797 2489
894
896
897
900
903
904
959
968
1482
1487
1488
1490
1492
1493
1506
1514
1525
1529
1536
1537
1538
1539
1540
1541
1545
1546
1548
1549
1550
1551
1558
1560
1561
1562
1563
1565
1572
1574
1577
1578
1634
1635
1637
1638
1642
1645
1699
1703
1704
1707
1712
1714
1716
1719
1721
1722
1728
1732
1733
1736
1737
1739
1745
1748
1752
1755
1828
1851
1855
1867
1870
1871
1873
1884
1937
1968
1974
1989
2008
2014
2015
2022
2023
2041
2047
2053
2058
2059
2060
2065
2420
2431
2435
2438
2445
2446
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
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2467
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2489