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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2069465773604649 2.8094e-08  
a 2.228197646895398 6.6158e-09 au
q 1.767079770187754 6.174e-08 au
i 5.718993308352003 3.3771e-06 deg
node 72.12880627271673 3.5826e-05 deg
peri 213.5707641708883 3.7221e-05 deg
M 359.9979725279136 1.1528e-05 deg
tp 2459000.506841973325
(2020-May-31.00684197)
3.8903e-05 TDB
period 1214.867723037604
3.33
5.4106e-06
1.481e-08
d
yr
n .2963285575649925 1.3197e-09 deg/d
Q 2.689315523603043 7.9849e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2555  
   data-arc span      25540 days (69.92 yr)  
   first obs. used      1950-07-15  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:08:04  

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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