391P/Kowalski (2018)

Japanese version
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Updated on April 6, 2021

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* Profile

Designation 391P/2019 U2
Recovery Date October 22 and 25, 2019
Magnitude 20.3 mag, 21.5 mag
Recoverer K. Hills (Tacanade Observatory, La Palma), Pan-STARRS 1 telescope (Haleakala)

* Orbital Elements

Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                                         
T 2018 Mar. 14.82858 TT                                 Rudenko                 
q   4.1082291            (2000.0)            P               Q                  
n   0.09767176     Peri.  186.15343     +0.64875109     +0.70013752             
a   4.6697115      Node   124.74776     -0.68181673     +0.70881134             
e   0.1202392      Incl.   21.28040     -0.33800586     -0.08598802             
P  10.1                                                                         
From 262 observations 2005 May 10-2021 Jan. 5, mean residual 0".8.              

* Magnitudes Graph

        m1 = 3.0 + 5 log d + 23.0 log r

        * Gray curve is:  m1 = -6.5 + 5 log d + 35 log r(t + 600)

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The orbital elements are published on M.P.E.C. 2021-F20.
The magnitudes graphs are made with Comet for Windows.

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.