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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 2458751.5 (2019-Sep-25.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 3.356615336479035 0.00011212  
a -.8514620715663804 3.1608e-05 au
q 2.006568576283542 2.7445e-05 au
i 44.05126537510564 0.00025172 deg
node 308.1483826038324 0.0002198 deg
peri 209.1246306195056 0.00080281 deg
M -93.52690984458057 0.0045693 deg
tp 2458826.055634751262
(2019-Dec-08.55563475)
0.00081422 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.25445796493601 6.9853e-05 deg/d
Q n/a n/a au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 2.581266011387933E-7 4.531E-8
ALN [SET] .0408373333128795 n/a
NK [SET] 2.6 n/a
NM [SET] 2. n/a
NN [SET] 3. n/a
R0 [SET] 5. n/a
  Orbit Determination Parameters
   # obs. used (total)      722  
   data-arc span      326 days  
   first obs. used      2018-12-13  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .42475  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2019-Nov-07 13:38:34  

Additional Information
 Earth MOID = 1.09163 au 
 Jupiter MOID = 2.38779 au 
 Nongrav. accels. using CO driven g(r) 
[ 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 33 2 parameter fit from 1157 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 33 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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