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

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5546230944518699 3.7272e-06  
a 8.786271381195657 7.5173e-05 au
q 3.913202359063017 1.91e-06 au
i 134.279859720494 2.4974e-05 deg
node 12.16929774259464 3.1498e-05 deg
peri 99.65643587794692 8.7242e-05 deg
M 37.05189145862712 0.00048984 deg
tp 2458417.431159687362
(2018-Oct-25.93115969)
0.00061739 TDB
period 9512.733861538996
26.04
0.12208
0.0003342
d
yr
n .03784401048530524 4.8567e-07 deg/d
Q 13.6593404033283 0.00011687 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      1342 days (3.67 yr)  
   first obs. used      2016-08-13  
   last obs. used      2020-04-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .38257  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 21:14:24  

Additional Information
 Earth MOID = 3.25749 au 
 Jupiter MOID = .0116027 au 
 T_jup = -0.918 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   .52384 E2020R12 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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