C/2021 C4 ( ATLAS )

Japanese version
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Updated on June 1, 2021

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* Profile

Discovery Date February 12, 2021
Magnitude 18.7 mag
Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program

* Pictures

* Orbital Elements

Epoch 2021 Jan. 26.0 TT = JDT 2459240.5
T 2021 Jan. 17.01361 TT                                 Rudenko
q   4.5041111            (2000.0)            P               Q
z  +0.0002554      Peri.  320.22803     -0.63756870     -0.74886491
 +/-0.0000280      Node   194.27874     -0.37408838     +0.09572065
e   0.9988499      Incl.  132.83919     -0.67347162     +0.65577351
From 140 observations 2021 Feb. 12-May 31, mean residual 0".5.

* Magnitudes Graph

        m1 = 8.5 + 5 log d + 10.0 log r

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The orbital elements are published on M.P.E.C. 2021-L04.
The magnitudes graphs are made with Comet for Windows.

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