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Quote:I see that I'm not too far from the zenith line (Europe) but unfortunately the object will be almost mag 11 when it culminates. It rises for me at magnitude 7.6 and would be mag 8 at 25 degree altitude. Will be nice to chase it down with binoculars.Do you know a site that plots a topocentric star chart of its track against the stars? I used JPL's Horizon's website for an ephemeris but that's just a list of numbers.Alternatively, would you know if the currently available orbital elements allow a correct trajectory to be calculated shortly after closest approach or does this additionally require a calculation of the effects of Earth's gravity on the changing orbital elements?