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JPL Small-Body Database Browser
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C/2019 Q4 (Borisov)
Classification: Hyperbolic Comet          SPK-ID: 1003639
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 2458771.5 (2019-Oct-15.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 3.357515577983859 0.00028558  
a -.8512204757513449 7.7326e-05 au
q 2.006765531882627 6.539e-05 au
i 44.04995363419669 0.00062513 deg
node 308.1494805144747 0.00052091 deg
peri 209.1176613137146 0.0019967 deg
M -68.453619203 0.0072317 deg
tp 2458826.045061213927
(2019-Dec-08.54506121)
0.002436 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.254992068567369 0.00017101 deg/d
Q n/a n/a au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -6.923019211046382E-8 1.41E-7
A2 [EST] 5.176229915078999E-7 1.192E-7
A3 [EST] 6.539576914073304E-8 4.891E-8
DT [EST] -63.97289321910016 19.
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      338 days  
   first obs. used      2018-12-13  
   last obs. used      2019-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .43576  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2019-Nov-19 11:40:51  

Additional Information
 Earth MOID = 1.09395 au 
 Jupiter MOID = 2.38786 au 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.6   0.7 34 2 parameter fit from 1496 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 34 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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