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249468 (2009 JG3)
Classification: Main-belt Asteroid          SPK-ID: 2249468
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04566858520488391 5.1386e-08  
a 3.17014042808021 3.5505e-08 au
q 3.025364599828982 1.6841e-07 au
i 17.64713063042558 7.0398e-06 deg
node 85.50583272268793 1.9195e-05 deg
peri 95.57144505701973 7.8181e-05 deg
M 27.08961668095037 7.6035e-05 deg
tp 2458845.362589936840
(2019-Dec-27.86258994)
0.00043518 TDB
period 2061.655883894853
5.64
3.4636e-05
9.483e-08
d
yr
n .1746169197353599 2.9335e-09 deg/d
Q 3.314916256331438 3.7127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      6710 days (18.37 yr)  
   first obs. used      2001-12-15  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:44:35  

Additional Information
 Earth MOID = 2.08229 au 
 Jupiter MOID = 1.85117 au 
 T_jup = 3.127 
[ 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 15.1   n/a MPO437158  
diameter diameter 4.833 km 0.548 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249468 (2009 JG3)          Discovered 2009-May-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 JG3 = 2008 CV186 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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