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C/2019 Y4-B (ATLAS)
Classification: Comet          SPK-ID: 1003676
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458957.5 (2020-Apr-18.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9996207788164868 3.4197e-05  
a 665.9476007351765 60.04 au
q .2525414373085628 5.5683e-06 au
i 45.45425932217252 0.0017825 deg
node 120.6254768924723 0.00061564 deg
peri 177.3826846341452 0.001371 deg
M 359.9975326011721 0.0003337 deg
tp 2459000.522472739902
(2020-May-31.02247274)
0.00036947 TDB
period 6277092.301116767
17185.74
8.4889e+05
2324
d
yr
n 5.735139499795978E-5 7.756e-06 deg/d
Q 1331.642660033044 120.06 au
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      40 days  
   first obs. used      2020-03-31  
   last obs. used      2020-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .9226  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2020-Jun-17 10:02:44  

Additional Information
 Earth MOID = .631678 au 
 Jupiter MOID = 1.39612 au 
 T_jup = 0.445 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.8   1. 7 2 parameter fit from 479 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 7 autocmod 2.8

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.4   C/2019 Y4-B       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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