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C/2019 Y1 (ATLAS)
Classification: Comet          SPK-ID: 1003652
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 2458951.5 (2020-Apr-12.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9965077830959858 2.3945e-06  
a 239.9117352033846 0.16456 au
q .8378238171486492 3.24e-07 au
i 73.34813593328373 2.4171e-05 deg
node 31.36633885842105 3.9837e-05 deg
peri 57.49817106452075 3.3075e-05 deg
M .007277003017943 7.4944e-06 deg
tp 2458924.063688884207
(2020-Mar-15.56368888)
3.7877e-05 TDB
period 1357299.423585706
3716.08
1396.5
3.823
d
yr
n .0002652325594075284 2.7289e-07 deg/d
Q 478.9856465896206 0.32855 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 1.093810738327506E-8 3.179E-10
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      208 days  
   first obs. used      2019-12-16  
   last obs. used      2020-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .7881  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 23:13:32  

Additional Information
 Earth MOID = .0831923 au 
 Jupiter MOID = 1.02611 au 
 T_jup = 0.347 
[ 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 11.9   1. 22 2 parameter fit from 851 observations, autocmod 2.9b
comet total magnitude slope K1 21.5   n/a 22 autocmod 2.9b

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.2   C/2019 Y1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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