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C/2020 X2 (ATLAS)
Classification: Jupiter-family Comet          SPK-ID: 1003749
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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.


Orbital Elements at Epoch 2459203.5 (2020-Dec-20.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7662529996842045 3.1152e-05  
a 16.37888237645224 0.0021027 au
q 3.82851462402096 7.7883e-05 au
i 18.19171893580673 0.00055894 deg
node 105.4587816181643 0.00014125 deg
peri 347.3552092348287 0.012706 deg
M .5073443229196436 0.00099749 deg
tp 2459169.378734716805
(2020-Nov-15.87873472)
0.071479 TDB
period 24211.6742950049
66.29
4.6625
0.01277
d
yr
n .01486886018759436 2.8633e-06 deg/d
Q 28.92925012888352 0.003714 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      120 days  
   first obs. used      2020-09-25  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .37952  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-30 21:12:51  

Additional Information
 Earth MOID = 2.84794 au 
 Jupiter MOID = 1.19368 au 
 T_jup = 2.484 
[ 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 10.5   0.4 4 from 164 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 10.   n/a 4 autocmod 2.8

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.9   C/2020 X2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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