393P/Spacewatch-Hill (2009)

Japanese version Home page

Updated on December 20, 2019

Profile Designation 393P/2009 SK280 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 24.40347 TT Bell q 4.1989993 (2000.0) P Q n 0.09441433 Peri. 328.27909 +0.98331920 -0.06026967 a 4.7765109 Node 36.41470 +0.15211583 +0.78977189 e 0.1209066 Incl. 16.80364 -0.09972024 +0.61043257 P 10.4 From 104 observations 2009 Sept. 17-2019 Oct. 31, mean residual 0".7.

Magnitudes Graph m1 = 1.0 + 5 log d + 25 log r

The orbital elements are published on M.P.E.C. 2019-V147. The magnitudes graphs are made with Comet for Windows.