C/1999 S1 ( SOHO )

Japanese version Home page

Updated on September 27, 1999

Profile Discovery Date September 16, 1999 Magnitude 4.87 mag Discoverer J. D. Shanklin (Comet Section, British Astronomical Association)

Orbital Elements T 1999 Sept. 17.89 TT Marsden q 0.0058 (2000.0) P Q Peri. 78.47 +0.20397 -0.97897 Node 0.30 -0.95585 -0.19983 e 1.0 Incl. 144.12 +0.21153 +0.04102 From 23 observations 1999 Sept. 16-17.

Magnitudes Graph m1 = 16.5 + 5 log d + 10.0 log r

The orbital elements are calculated by Dr. Brian G. Marsden and printed on M.P.E.C. 1999-S04. The magnitudes graphs are made with Comet for Windows.