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90579 Gordonnelson (2004 GF39)
Classification: Main-belt Asteroid          SPK-ID: 2090579
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2126619986379976 6.3713e-08  
a 2.623851466458135 1.8273e-08 au
q 2.065857969471907 1.7551e-07 au
i 12.50993152200558 6.6687e-06 deg
node 214.6944485591022 2.2208e-05 deg
peri 314.6492024399597 2.7522e-05 deg
M 321.2964033857116 1.8365e-05 deg
tp 2459167.399916879415
(2020-Nov-13.89991688)
8.0204e-05 TDB
period 1552.41309161454
4.25
1.6217e-05
4.44e-08
d
yr
n .2318970394829594 2.4225e-09 deg/d
Q 3.181844963444363 2.2159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      8142 days (22.29 yr)  
   first obs. used      1997-10-06  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:14:23  

Additional Information
 Earth MOID = 1.09009 au 
 Jupiter MOID = 1.87784 au 
 T_jup = 3.338 
[ 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 15.2   n/a MPO320094  
diameter diameter 5.581 km 0.299 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90579 Gordonnelson           Discovered 2004 Apr. 15 by the Catalina Sky Survey.
Gordon Nelson (b. 1956) is a well-known amateur paleontologist in southern Arizona. He is co-discoverer of the Sonorasaurus in the desert east of Tucson, Arizona.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

[ show close-approach data ]
Alternate Designations
 2004 GF39 = 2002 WQ15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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