117P/Helin-Roman-Alu 1 (2005)

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Updated on May 5, 2012

Profile Pictures

Orbital Elements Epoch 2005 Dec. 16.0 TT = JDT 2453720.5 T 2005 Dec. 19.90503 TT MPC q 3.0369804 (2000.0) P Q n 0.11960806 Peri. 222.67118 +0.19454020 +0.97228319 a 4.0797081 Node 58.93789 -0.85419615 +0.23291936 e 0.2555888 Incl. 8.70803 -0.48218569 -0.02034622 P 8.24 From 2112 observations 1988 Aug. 12-2012 Apr. 29, mean residual 0".8. Nongravitational parameters Y1 = +0.34, Y2 = +0.0265.

Finding Charts

Magnitudes Graph m1 = 3.0 + 5 log d + 18.0 log r(t - 140)

The orbital elements are published on M.P.E.C. 2012-J16. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.