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90463 Johnrichard (2004 CS39)
Classification: Main-belt Asteroid          SPK-ID: 2090463
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04427146520648466 5.159e-08  
a 3.119595311671322 2.8662e-08 au
q 2.981486256372353 1.6253e-07 au
i 8.955671606227583 5.4476e-06 deg
node 281.9954284623205 3.8236e-05 deg
peri 280.5824368622036 7.6841e-05 deg
M 326.4384094216168 6.532e-05 deg
tp 2459388.122902288093
(2021-Jun-22.62290229)
0.00036496 TDB
period 2012.545998556406
5.51
2.7736e-05
7.594e-08
d
yr
n .1788778990682583 2.4652e-09 deg/d
Q 3.257704366970292 2.993e-08 au
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      9393 days (25.72 yr)  
   first obs. used      1995-07-03  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52888  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:17:08  

Additional Information
 Earth MOID = 1.99272 au 
 Jupiter MOID = 1.83896 au 
 T_jup = 3.196 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.34   n/a E2021B10  
diameter diameter 3.896 km 0.797 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90463 Johnrichard           Discovered 2004 Feb. 14 by D. S. Dixon at Jornada Observatory.
John B. Dixon (b. 1923) of Hadley, Michigan, and Richard R. Dixon (b. 1927) of Ortonville, Michigan, expended considerable time and effort in transporting observatory domes from Michigan to New Mexico and then in the construction of the structures for Jornada Observatory in New Mexico.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

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Alternate Designations
 2004 CS39 = 1995 OY13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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