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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 2458747.5 (2019-Sep-21.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 3.353491649120846 0.0019374  
a -.8522734226967555 0.00054562 au
q 2.005818383084455 0.00036813 au
i 44.05785522652224 0.0034112 deg
node 308.1419761457706 0.0036096 deg
peri 209.1427356972629 0.0074482 deg
M -98.42937798989013 0.082563 deg
tp 2458826.075849537582
(2019-Dec-08.57584954)
0.0095966 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.252667054433976 0.0012029 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      51 days  
   first obs. used      2019-08-30  
   last obs. used      2019-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .40542  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2019-Oct-22 10:02:17  

Additional Information
 Earth MOID = 1.09215 au 
 Jupiter MOID = 2.38817 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 13.4   0.6 16 2 parameter fit from 968 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 16 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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