C/2018 F4 ( PanSTARRS )

Japanese version
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Updated on January 20, 2022

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* Profile

Discovery Date March 17, 2018
Magnitude 20.4 mag
Discoverer Pan-STARRS 1 telescope (Haleakala)

* Pictures

* Orbital Elements

    C/2018 F4 (PANSTARRS)                                                       
Epoch 2019 Dec. 23.0 TT = JDT 2458840.5                                         
T 2019 Dec. 4.08695 TT                                  Rudenko                 
q   3.4399510            (2000.0)            P               Q                  
z  -0.0004447      Peri.  263.20986     -0.01441314     +0.89948097             
 +/-0.0000008      Node    26.50749     +0.16996203     +0.43261541             
e   1.0015297      Incl.   78.09943     -0.98534520     +0.06146460             
From 375 observations 2018 Mar. 17-2021 Oct. 13, mean residual 0".7.            
                                                                                
    C/2018 F4-A (PANSTARRS)                                                     
Epoch 2019 Dec. 23.0 TT = JDT 2458840.5                                         
T 2019 Dec. 4.07321 TT                                  Rudenko                 
q   3.4398115            (2000.0)            P               Q                  
z  -0.0004291      Peri.  263.20632     -0.01446441     +0.89947713             
 +/-0.0000038      Node    26.50793     +0.16993005     +0.43263167             
e   1.0014759      Incl.   78.09910     -0.98534997     +0.06140632             
From 112 observations 2020 Sept. 12-2021 Oct. 13, mean residual 0".5.           
                                                                                
    C/2018 F4-B (PANSTARRS)                                                     
Epoch 2019 Dec. 23.0 TT = JDT 2458840.5                                         
T 2019 Dec. 4.00834 TT                                  Rudenko                 
q   3.4395954            (2000.0)            P               Q                  
z  -0.0004549      Peri.  263.19128     -0.01470898     +0.89947588             
 +/-0.0000048      Node    26.50748     +0.16982990     +0.43267125             
e   1.0015647      Incl.   78.09996     -0.98536361     +0.06114508             
From 108 observations 2020 Sept. 12-2021 Oct. 13, mean residual 0".7.           

* Finding Charts

* Magnitudes Graph

        m1 = -9.0 + 5 log d + 30   log r          [    ,-615]  (             - 2018 Mar. 29)
        m1 =  3.0 + 5 log d + 15.0 log r          [-615, 150]  (2018 Mar. 29 - 2020 May   2)
        m1 =  0.5 + 5 log d + 20.0 log r(t - 50)  [ 150,    ]  (2020 May   2 -             )

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The orbital elements are published on M.P.E.C. 2021-U31.
The charts are made with StellaNavigator Ver.10 (AstroArts).
The magnitudes graphs are made with Comet for Windows.

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