78P/Gehrels 2 (2019)

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Updated on July 31, 2021

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Orbital Elements Epoch 2019 Mar. 18.0 TT = JDT 2458560.5 T 2019 Apr. 2.76433 TT Rudenko q 2.0137749 (2000.0) P Q n 0.13625603 Peri. 192.69286 +0.72913738 -0.68212772 a 3.7402351 Node 210.54853 +0.63702432 +0.70601945 e 0.4615914 Incl. 6.24863 +0.25011738 +0.19036365 P 7.23 From 5704 observations 1973 Sept. 29-2020 May 26, mean residual 1".6. Nongravitational parameters A1 = +0.04, A2 = +0.0391.

Finding Charts

Magnitudes Graph m1 = 1.0 + 5 log d + 30.0 log r [ , 0] ( - 2019 Apr. 2) m1 = 4.0 + 5 log d + 20.0 log r [ 0,190] (2019 Apr. 2 - 2019 Oct. 9) m1 = 0.0 + 5 log d + 30.0 log r [190,375] (2019 Oct. 9 - 2020 Apr. 11) m1 = 10.5 + 5 log d + 10.0 log r [375, ] (2020 Apr. 11 - )

The orbital elements are published on M.P.E.C. 2021-O56. The charts are made with StellaNavigator Ver.8 (AstroArts). The magnitudes graphs are made with Comet for Windows.