P/1997 G1 ( Montani )

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Updated on November 17, 1998

Profile Discovery Date April 9, 1997 Magnitude 19.1 mag Discoverer Joe Montani

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 72 observations 1997 Apr. 9 to 1998 June 18, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.68 arc seconds. Epoch = 1997 Apr. 22.0 TT JDT = 2450560.5 T = 1997 Apr. 6.75494 +/- 0.01424 (m.e.) TT Peri. = 213.49141 +/- 0.00282 Node = 267.87523 +/- 0.00310 (2000.0) Incl. = 3.98974 +/- 0.00097 q = 4.2142733 +/- 0.0002722 AU e = 0.4165645 +/- 0.0000263 a = 7.2232040 +/- 0.0003336 AU n = 0.05077024 +/- 0.00000352 P = 19.413 +/- 0.0013451 years (+/- 0.49 day)

Finding Charts 1996 Oct. 4 - 1998 June 16

Magnitudes Graph m1 = 9.7 + 5 log d + 10.0 log r

The orbital elements are calculated by Kenji Muraoka. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.