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4331 Hubbard (1983 HC)
Classification: Main-belt Asteroid          SPK-ID: 2004331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .206946577085907 2.8119e-08  
a 2.228197649404783 7.5473e-09 au
q 1.7670797727896 6.1826e-08 au
i 5.718994872256627 3.4802e-06 deg
node 72.1287841193015 3.7824e-05 deg
peri 213.5707917286077 3.9969e-05 deg
M 359.9979649333067 1.5884e-05 deg
tp 2459000.506867602345
(2020-May-31.00686760)
5.3604e-05 TDB
period 1214.867725089871
3.33
6.1725e-06
1.69e-08
d
yr
n .2963285570644069 1.5056e-09 deg/d
Q 2.689315526019967 9.1092e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2410  
   data-arc span      25402 days (69.55 yr)  
   first obs. used      1950-07-15  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43851  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:10:30  

Additional Information
 Earth MOID = .754061 au 
 Jupiter MOID = 2.47248 au 
 T_jup = 3.609 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO473825  
diameter diameter 6.045 km 0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.206   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4331 Hubbard (1983 HC)          Discovered 1983-Apr-18 by Thomas, N. G. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1983 HC = 1940 LO = 1950 NT = 1970 LG = 1986 ES1 = 1987 SR29 = 1987 UF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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