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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9965095378502034 2.4362e-06  
a 240.0324501779317 0.1676 au
q .8378241820690202 3.3794e-07 au
i 73.34814492500459 2.4325e-05 deg
node 31.36631691408443 4.0312e-05 deg
peri 57.49823152475465 3.464e-05 deg
M .007536536137231872 7.9008e-06 deg
tp 2458924.063728671626
(2020-Mar-15.56372867)
3.8893e-05 TDB
period 1358323.968970532
3718.89
1422.6
3.895
d
yr
n .0002650325019831922 2.7758e-07 deg/d
Q 479.2270761737944 0.33461 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 1.108118542167427E-8 3.23E-10
  Orbit Determination Parameters
   # obs. used (total)      994  
   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      .79005  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-24 20:18:22  

Additional Information
 Earth MOID = .0829048 au 
 Jupiter MOID = 1.02611 au 
 T_jup = 0.347 
[ hide covariance matrix ]
Orbit Covariance (7×7)
  e q tp node peri i A2
e 5.935229551744785E-12 5.262056189278486E-13 6.877627088757459E-11 -6.155602028923329E-11 3.176048532834133E-11 1.774368506555691E-11 5.538976229994543E-16
q 5.262056189278486E-13 1.142018044024031E-13 6.535108536068066E-12 -4.283364699667372E-12 4.961951605711124E-12 8.200670735907083E-13 7.910173086094614E-17
tp 6.877627088757459E-11 6.535108536068066E-12 1.51267011329238E-9 -4.462351013062858E-10 1.123978038087506E-9 1.714098872264723E-10 9.636126193319519E-15
node -6.155602028923329E-11 -4.283364699667372E-12 -4.462351013062858E-10 1.625031870307668E-9 -1.977870304635771E-10 -7.598529784423334E-10 -2.416898267110237E-15
peri 3.176048532834133E-11 4.961951605711124E-12 1.123978038087506E-9 -1.977870304635771E-10 1.199947404881871E-9 1.75792876537244E-10 6.880783805500433E-15
i 1.774368506555691E-11 8.200670735907083E-13 1.714098872264723E-10 -7.598529784423334E-10 1.75792876537244E-10 5.917016459129548E-10 3.872729708497486E-16
A2 5.538976229994543E-16 7.910173086094614E-17 9.636126193319519E-15 -2.416898267110237E-15 6.880783805500433E-15 3.872729708497486E-16 1.043424366479177E-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. 21 2 parameter fit from 835 observations, autocmod 2.8
comet total magnitude slope K1 21.5   n/a 21 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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