117P/Helin-Roman-Alu 1 (2014)

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Updated on February 21, 2012

Profile Pictures

Orbital Elements Epoch 2014 Apr. 13.0 TT = JDT 2456760.5 T 2014 Mar. 27.15494 TT MPC q 3.0563380 (2000.0) P Q n 0.11888513 Peri. 222.68248 +0.19404327 +0.97241123 a 4.0962303 Node 58.89647 -0.85433839 +0.23237866 e 0.2538657 Incl. 8.69726 -0.48213392 -0.02040960 P 8.29 From 1874 observations 1993 Jan. 24-2011 Feb. 19, mean residual 0".7. Nongravitational parameters A1 = +24.29, A2 = +3.5843.

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. 2011-D36. The charts are made with StellaNavigator Ver.8 (AstroArts). The magnitudes graphs are made with Comet for Windows.