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C/2019 NJ3 (Lemmon)
Classification: Hyperbolic Comet          SPK-ID: 1003710
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459001.5 (2020-Jun-01.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.00085667460458 2.7157e-05  
a -5091.507771292269 161.38 au
q 4.361765406687514 2.9907e-05 au
i 99.43738953685252 8.4007e-05 deg
node 142.4533377301321 8.0316e-05 deg
peri 246.8231177667943 0.00082367 deg
M -.0003883960959400335 1.8457e-05 deg
tp 2459144.666167229876
(2020-Oct-22.16616723)
0.0055455 TDB
period n/a
n/a
n/a
n/a
d
yr
n 2.712904196955988E-6 1.2898e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      587 days (1.61 yr)  
   first obs. used      2019-06-05  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .4335  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-01 22:12:42  

Additional Information
 Earth MOID = 3.86233 au 
 Jupiter MOID = .951112 au 
 T_jup = 1.066 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.7   0.6 10 from 46 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 13.25   n/a 10 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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