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[vsnet-campaign-xray 43] XTE J1118+480 Observations 20000824
Dear colleagues,
here are results of our last observing run (August 24, 2000) of
XTE J1118+480. All data taken with 16-inch SCT telescope + ST7E CCD
through Johnson R-filter. Time series data shows 0.5 magnitude
variability that is about twice the measurement error.
Each exposure was 120 s.
The magnitude scale was calibrated by sequence star 8 (VSNET-chat 2778)
assuming V-R is the same as B-V.
Star RA (2000.0) De V B-V R
---------------------------------------------------------
calibration star 11 18 25.6 +47 04 42 15.49 0.63 14.93
check star1 (1.5' N of calibration star)
check star2 11 17 55.6 +48 01 59 17.56 1.27 16.29
Date (UT) Var err check1 check2
----------------------------------------------
20000824.893 16.65 0.16 14.90 0.03 16.47 0.14
20000824.895 16.93 0.20 14.76 0.03 16.30 0.11
20000824.896 16.99 0.18 14.86 0.03 16.56 0.12
20000824.898 17.21 0.24 14.76 0.03 16.39 0.12
20000824.899 17.20 0.24 14.88 0.03 16.46 0.12
20000824.901 17.12 0.20 14.85 0.03 16.24 0.09
20000824.902 17.13 0.17 14.82 0.02 16.36 0.09
20000824.904 17.13 0.17 14.81 0.02 16.31 0.08
20000824.906 17.23 0.19 14.78 0.02 16.26 0.08
20000824.908 17.03 0.16 14.79 0.02 16.39 0.09
20000824.910 17.26 0.20 14.82 0.02 16.38 0.09
20000824.911 16.87 0.14 14.82 0.02 16.24 0.08
20000824.913 16.98 0.15 14.87 0.02 16.30 0.08
20000824.914 16.91 0.15 14.85 0.02 16.51 0.10
20000824.916 17.19 0.30 14.69 0.03 16.41 0.14
20000824.917 17.25 0.22 14.83 0.03 16.29 0.10
20000824.919 16.96 0.18 14.82 0.03 16.58 0.12
20000824.921 17.07 0.19 14.89 0.03 16.29 0.09
20000824.922 17.09 0.21 14.80 0.03 16.46 0.11
20000824.924 16.60 0.15 14.81 0.03 16.41 0.12
20000824.925 16.73 0.17 14.80 0.03 16.61 0.17
20000824.927 17.12 0.22 14.81 0.03 16.37 0.11
Average:
20000824.91 17.03 0.04 14.82 0.01 16.39 0.02
Observer: M. Moilanen
Data reduction: A. Oksanen
best regards,
arto oksanen
--
Arto Oksanen mailto:arto.oksanen@jklsirius.fi
Jyvaskylan Sirius ry, Kyllikinkatu 1, FIN-40100 Jyv舖kyl Finland
Tel. +358-14-4157852, Mobile: +358-40-5659438, Fax: +358-14-4157803
Nyrola Observatory http://www.ursa.fi/sirius/nytt/nytt_info.html
vsnet-adm@kusastro.kyoto-u.ac.jp
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