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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2066895038573497 1.1742e-08  
a 2.227541051270853 5.5696e-09 au
q 1.767131696561801 2.6264e-08 au
i 5.718608462009514 7.8204e-07 deg
node 72.12076189708111 1.911e-06 deg
peri 213.5177420574419 5.5517e-06 deg
M 117.4470495362878 5.7621e-06 deg
tp 2459000.334537095249
(2020-May-30.83453710)
1.9421e-05 TDB
period 1214.330774666629
3.32
4.5543e-06
1.247e-08
d
yr
n .296459587050185 1.1119e-09 deg/d
Q 2.687950405979905 6.7207e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3056  
   data-arc span      25777 days (70.57 yr)  
   first obs. used      1950-07-15  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41417  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:22:12  

Additional Information
 Earth MOID = .753835 au 
 Jupiter MOID = 2.47161 au 
 T_jup = 3.610 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457333.5 (2015-Nov-07.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2067075182885609 1.1749e-08  
q 1.767762593675406 2.6301e-08 au
tp 2457785.416385212891
(2017-Jan-31.91638521)
2.0088e-05 TDB
node 72.17576988797259 1.9109e-06 deg
peri 213.4315062655424 5.5435e-06 deg
i 5.718825407744659 7.8203e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3056  
   data-arc span      25777 days (70.57 yr)  
   first obs. used      1950-07-15  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41417  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:22:12  

Additional Information
 Jupiter MOID = 2.47161 au 
 T_jup = 3.610 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.380478072827316E-16 -3.046201096028037E-16 -2.797697477366059E-15 -7.320340315419886E-15 1.339388403429968E-14 -7.882835516270931E-16
q -3.046201096028037E-16 6.917634799974192E-16 -1.628513596492843E-14 1.552793810573039E-14 -3.613486510191086E-14 1.840448671380356E-15
tp -2.797697477366059E-15 -1.628513596492843E-14 4.03538869861851E-10 4.930444447870143E-13 1.008076089804139E-10 -1.267530168642179E-12
node -7.320340315419886E-15 1.552793810573039E-14 4.930444447870143E-13 3.651401561708085E-12 -3.911873102891338E-12 3.661508109217855E-13
peri 1.339388403429968E-14 -3.613486510191086E-14 1.008076089804139E-10 -3.911873102891338E-12 3.073071141578245E-11 -6.747473031691389E-13
i -7.882835516270931E-16 1.840448671380356E-15 -1.267530168642179E-12 3.661508109217855E-13 -6.747473031691389E-13 6.11570369733587E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.40   n/a MPCxxxxx  
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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