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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458853.5 (2020-Jan-05.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 3.357057274677898 0.00021526  
a -.8513223238639416 6.953e-05 au
q 2.006615476559197 2.0157e-05 au
i 44.05348671638512 0.00013987 deg
node 308.1499528970442 0.00031696 deg
peri 209.124397765598 0.00040072 deg
M 34.4379453860417 0.0046285 deg
tp 2458826.054307586055
(2019-Dec-08.55430759)
0.00061213 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.254766863471223 0.00015372 deg/d
Q n/a n/a au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -4.111801832963227E-8 3.54E-8
A2 [EST] -2.939796125959954E-8 5.939E-8
A3 [EST] -1.149449585022014E-7 1.683E-8
  Orbit Determination Parameters
   # obs. used (total)      1191  
   data-arc span      389 days (1.07 yr)  
   first obs. used      2018-12-13  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .48273  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2020-Jan-09 10:42:19  

Additional Information
 Earth MOID = 1.09302 au 
 Jupiter MOID = 2.388 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 13.7   0.8 51 2 parameter fit from 1793 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 51 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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