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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2069465756623624 2.7891e-08  
a 2.228197647438651 5.9591e-09 au
q 1.76707977440229 6.1033e-08 au
i 5.718990157842442 2.8592e-06 deg
node 72.12883128815167 3.3807e-05 deg
peri 213.5707402777016 3.4742e-05 deg
M 359.9979710514569 8.0432e-06 deg
tp 2459000.506846955827
(2020-May-31.00684696)
2.7143e-05 TDB
period 1214.867723481896
3.33
4.8735e-06
1.334e-08
d
yr
n .2963285574566216 1.1887e-09 deg/d
Q 2.689315520475012 7.1923e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2842  
   data-arc span      25692 days (70.34 yr)  
   first obs. used      1950-07-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:17:01  

Additional Information
 Earth MOID = .754061 au 
 Jupiter MOID = 2.47248 au 
 T_jup = 3.609 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457227.5 (2015-Jul-24.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2069961078201175 2.7934e-08  
q 1.766713942217791 6.1118e-08 au
tp 2457785.249132383975
(2017-Jan-31.74913238)
2.7782e-05 TDB
node 72.18958107199337 3.3802e-05 deg
peri 213.4302344590566 3.4733e-05 deg
i 5.719798050474855 2.8594e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2842  
   data-arc span      25692 days (70.34 yr)  
   first obs. used      1950-07-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:17:01  

Additional Information
 Jupiter MOID = 2.47248 au 
 T_jup = 3.609 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.803059363827695E-16 -1.702576170674411E-15 1.280652458194635E-13 5.883172149713484E-15 1.679765945097319E-14 -6.542900311878369E-16
q -1.702576170674411E-15 3.735395814394417E-15 -3.130514378886937E-13 -1.240700730520887E-14 -4.909325090415601E-14 1.469341317186093E-15
tp 1.280652458194635E-13 -3.130514378886937E-13 7.71842376897857E-10 3.835172009381418E-12 2.316312564701517E-10 -5.200152558191336E-13
node 5.883172149713484E-15 -1.240700730520887E-14 3.835172009381418E-12 1.142570333115611E-9 -1.135689150333728E-9 -3.519486350350547E-12
peri 1.679765945097319E-14 -4.909325090415601E-14 2.316312564701517E-10 -1.135689150333728E-9 1.206368278818818E-9 3.345250362022865E-12
i -6.542900311878369E-16 1.469341317186093E-15 -5.200152558191336E-13 -3.519486350350547E-12 3.345250362022865E-12 8.176100009241668E-12

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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