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(2019 HC4)
Classification: Centaur          SPK-ID: 3841686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .554544599870045 0.00085962  
a 8.782186221192172 0.018532 au
q 3.912072277176936 0.00076768 au
i 134.2607726759631 0.0030334 deg
node 12.16328690928115 0.0065247 deg
peri 99.60989922891979 0.042972 deg
M 22.09314014545151 0.081072 deg
tp 2458417.112208672895
(2018-Oct-25.61220867)
0.31354 TDB
period 9506.100241752923
26.03
30.089
0.08238
d
yr
n .03787041908297993 0.00011987 deg/d
Q 13.65230016520741 0.028809 au
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      33 days  
   first obs. used      2019-04-27  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .38046  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-16 22:39:36  

Additional Information
 Earth MOID = 3.25675 au 
 Jupiter MOID = .0135524 au 
 T_jup = -0.917 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.862   .56045 5 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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