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

[ show orbit diagram ]
Orbital Elements at Epoch 2458438.5 (2018-Nov-16.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000390606749757 2.4179e-05  
a -990.6509493436076 61.328 au
q .3869549474667874 1.8535e-06 au
i 143.9879595892249 0.00046339 deg
node 128.7220909046342 0.00042418 deg
peri 88.77491355817259 0.00020589 deg
M -.0005534292952922258 5.1386e-05 deg
tp 2458456.008101697892
(2018-Dec-03.50810170)
0.00015783 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.160989722597166E-5 2.9353e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .57816  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:46  

Additional Information
 Earth MOID = .115002 au 
 Jupiter MOID = 2.5665 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 12.8   1. 10 2 parameter fit from 510 observations, autocmod 2.9c
comet total magnitude slope K1 6.25   n/a 10 autocmod 2.9c
comet nuclear magnitude M2 17.1   1. 10 from 103 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 10 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 10 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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