242P/Spahr (1999)

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Updated on August 21, 2010

Profile Designation 242P/1998 U4 Discovery Date October 27, 1998 Magnitude 17.2 mag Discoverer Timothy B. Spahr (Catalina Sky Survey)

Orbital Elements Epoch 1999 Mar. 3.0 TT = JDT 2451240.5 T 1999 Feb. 26.51217 TT MPC q 3.8433434 (2000.0) P Q n 0.07497203 Peri. 251.74999 +0.28876746 -0.95727113 a 5.5701883 Node 181.71689 +0.94854666 +0.28383944 e 0.3100155 Incl. 31.51908 -0.12989450 -0.05538181 P 13.15 From 141 observations 1997 Oct. 29-2010 Aug. 16, mean residual 0".68.

Finding Charts

Magnitudes Graph m1 = 3.0 + 5 log d + 20 log r

The orbital elements are published on M.P.E.C. 2010-Q05. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.