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JPL Small-Body Database Browser
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C/2018 V1 (Machholz-Fujikawa-Iwamoto)
Classification: Hyperbolic Comet          SPK-ID: 1003590
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458438.5 (2018-Nov-16.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000396788471273 2.4179e-05  
a -975.2154511720122 59.432 au
q .3869542480323535 1.8535e-06 au
i 143.987833847414 0.0004634 deg
node 128.7221974233135 0.00042418 deg
peri 88.77491368707203 0.00020588 deg
M -.0005666192972620949 5.1791e-05 deg
tp 2458456.008064890613
(2018-Dec-03.50806489)
0.00015783 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.236333088792066E-5 2.9584e-06 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      750  
   data-arc span      37 days  
   first obs. used      2018-11-08  
   last obs. used      2018-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .58175  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-15 08:30:21  

Additional Information
 Earth MOID = .115002 au 
 Jupiter MOID = 2.56649 au 
 T_jup = -0.624 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 14.6   1. 9 from 501 observations, assumed slope, autocmod 2.6q
comet total magnitude slope K1 17.   n/a 9 autocmod 2.6q
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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