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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.


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Orbital Elements at Epoch 2458952.5 (2020-Apr-13.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9965095422355938 2.4481e-06  
a 240.0327536604625 0.16841 au
q .8378241887259507 3.3877e-07 au
i 73.34814244063271 2.4356e-05 deg
node 31.3663224927079 4.0495e-05 deg
peri 57.49823420689214 3.4688e-05 deg
M .007536521081501387 7.9392e-06 deg
tp 2458924.063731549171
(2020-Mar-15.56373155)
3.8919e-05 TDB
period 1358326.545045511
3718.90
1429.6
3.914
d
yr
n .0002650319993473572 2.7893e-07 deg/d
Q 479.2276831321991 0.33624 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 1.111144410992249E-8 3.235E-10
  Orbit Determination Parameters
   # obs. used (total)      993  
   data-arc span      187 days  
   first obs. used      2019-12-16  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .78871  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-09 22:14:13  

Additional Information
 Earth MOID = .0829048 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. 20 2 parameter fit from 834 observations, autocmod 2.8
comet total magnitude slope K1 21.5   n/a 20 autocmod 2.8

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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