21P/Giacobini-Zinner (1998)

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Updated on December 31, 2016

Profile Pictures

Orbital Elements Epoch 1998 Nov. 3.0 TT = JDT 2451120.5 T 1998 Nov. 21.31970 TT MPC q 1.0337424 (2000.0) P Q n 0.14912233 Peri. 172.54292 +0.98522174 -0.09847671 a 3.5218776 Node 195.39719 +0.11678456 +0.98473792 e 0.7064797 Incl. 31.85918 +0.12529759 -0.14350461 P 6.61 From 1204 observations 1998 Jan. 20-2012 Feb. 29, mean residual 0".8. Nongravitational parameters A1 = +0.13, A2 = -0.0982.

Finding Charts

Magnitudes Graph m1 = 9.0 + 5 log d + 18.5 log r(t + 15) [ , 15] ( - 1998 Dec. 6) m1 = 9.7 + 5 log d + 10.0 log r [ 15,120] (1998 Dec. 6 - 1999 Mar. 21) m1 = 7.0 + 5 log d + 20.0 log r [120, ] (1999 Mar. 21 - )

The orbital elements are published on M.P.E.C. 2012-F11. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.