P/2009 SK280 ( Spacewatch-Hill )

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Updated on January 22, 2012

Profile Discovery Date September 25 and October 15, 2009 Magnitude 20.1 mag, 19.8 mag Discoverer Spacewatch, R. E. Hill (Mount Lemmon Survey)

Orbital Elements Epoch 2009 May 9.0 TT = JDT 2454960.5 T 2009 May 24.66431 TT MPC q 4.1992123 (2000.0) P Q n 0.09439947 Peri. 328.31143 +0.98328512 -0.06082265 a 4.7770122 Node 36.41459 +0.15256020 +0.78968543 e 0.1209543 Incl. 16.80370 -0.09937690 +0.61048959 P 10.4 From 85 observations 2009 Sept. 17-2011 Dec. 23, mean residual 0".5.

Magnitudes Graph m1 = 10.5 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2012-B23. The magnitudes graphs are made with Comet for Windows.