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249470 (2009 JA13)
Classification: Main-belt Asteroid          SPK-ID: 2249470
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0583338175644646 6.771e-08  
a 3.096416939361538 3.7629e-08 au
q 2.915791118517304 2.0118e-07 au
i 9.904428631570978 7.0142e-06 deg
node 68.84226119664592 4.3241e-05 deg
peri 87.56774596505814 7.6554e-05 deg
M 71.43604135715086 6.1505e-05 deg
tp 2458605.586065434447
(2019-May-02.08606543)
0.00034006 TDB
period 1990.158101466072
5.45
3.6277e-05
9.932e-08
d
yr
n .1808901512572303 3.2973e-09 deg/d
Q 3.277042760205771 3.9824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      8914 days (24.41 yr)  
   first obs. used      1995-11-25  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:44:35  

Additional Information
 Earth MOID = 1.94728 au 
 Jupiter MOID = 1.78308 au 
 T_jup = 3.198 
[ 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 15.7   n/a MPO470661  
diameter diameter 4.805 km 1.449 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249470 (2009 JA13)          Discovered 2009-May-02 by La Sagra at La Sagra
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 JA13 = 2001 YC38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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