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JPL Small-Body Database Browser
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243457 (2009 JA18)
Classification: Main-belt Asteroid          SPK-ID: 2243457
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03783204149448586 5.5774e-08  
a 2.778575087641659 2.6824e-08 au
q 2.673455919630455 1.6231e-07 au
i 4.842756096868101 6.0552e-06 deg
node 209.0958079178871 6.132e-05 deg
peri 89.73899301244604 0.0001068 deg
M 350.7154967758129 8.5337e-05 deg
tp 2458644.130260280992
(2019-Jun-09.63026028)
0.00040089 TDB
period 1691.732268479258
4.63
2.4498e-05
6.707e-08
d
yr
n .2127996295321678 3.0815e-09 deg/d
Q 2.883694255652864 2.7839e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      6583 days (18.02 yr)  
   first obs. used      2001-09-20  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57121  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:15:22  

Additional Information
 Earth MOID = 1.66275 au 
 Jupiter MOID = 2.18482 au 
 T_jup = 3.328 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO413138  
diameter diameter 3.001 km 0.457 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243457 (2009 JA18)          Discovered 2009-May-03 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2009 JA18 = 2006 UD340 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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