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JPL Small-Body Database Browser
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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 2458941.5 (2020-Apr-02.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9964746261669873 2.9384e-06  
a 237.6538965295027 0.19818 au
q .8378188281386064 4.4821e-07 au
i 73.34810650242828 2.5368e-05 deg
node 31.3665535016443 4.9815e-05 deg
peri 57.49791191221644 4.6275e-05 deg
M .004690822242897907 5.87e-06 deg
tp 2458924.063379683139
(2020-Mar-15.56337968)
3.528e-05 TDB
period 1338184.008906726
3663.75
1673.9
4.583
d
yr
n .0002690212987181891 3.3651e-07 deg/d
Q 474.4699742308669 0.39567 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 9.955952261189423E-9 3.95E-10
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      156 days  
   first obs. used      2019-12-16  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .73988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-26 12:44:31  

Additional Information
 Earth MOID = .0823064 au 
 Jupiter MOID = 1.02622 au 
 T_jup = 0.347 
[ hide covariance matrix ]
Orbit Covariance (7×7)
  e q tp node peri i A2
e 8.63434461315926E-12 9.939433327155239E-13 2.61678737905009E-11 -9.710165162253912E-11 -6.836688305987726E-11 2.23391562756645E-11 6.407778703321756E-16
q 9.939433327155239E-13 2.008898911141835E-13 -4.673217108768138E-13 -1.115814178574092E-11 -1.146690133720177E-11 1.874002393694419E-12 9.097377440072842E-17
tp 2.61678737905009E-11 -4.673217108768138E-13 1.244653374288414E-9 9.570936917636834E-11 1.028669778053545E-9 4.782126332946727E-11 7.99754590959257E-15
node -9.710165162253912E-11 -1.115814178574092E-11 9.570936917636834E-11 2.481524420289806E-9 8.829519857757979E-10 -9.469584360591975E-10 -7.273212622026232E-16
peri -6.836688305987726E-11 -1.146690133720177E-11 1.028669778053545E-9 8.829519857757979E-10 2.141386953695023E-9 -1.586989755668238E-11 7.933893078333709E-18
i 2.23391562756645E-11 1.874002393694419E-12 4.782126332946727E-11 -9.469584360591975E-10 -1.586989755668238E-11 6.435442629830108E-10 -4.367640469402493E-16
A2 6.407778703321756E-16 9.097377440072842E-17 7.99754590959257E-15 -7.273212622026232E-16 7.933893078333709E-18 -4.367640469402493E-16 1.56033150579077E-19

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. 16 2 parameter fit from 712 observations, autocmod 2.8
comet total magnitude slope K1 21.75   n/a 16 autocmod 2.8
comet nuclear magnitude M2 14.3   0.7 16 from 110 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 16 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 16 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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