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JPL Small-Body Database Browser
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249435 (2009 FG18)
Classification: Main-belt Asteroid          SPK-ID: 2249435
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .2248194212668617 5.3961e-08  
a 3.189098780476375 7.398e-08 au
q 2.472127438286822 1.8467e-07 au
i 27.12326870327008 8.7186e-06 deg
node 165.5377009117956 1.3554e-05 deg
peri 302.585940098883 2.7279e-05 deg
M 309.1421230504395 2.8344e-05 deg
tp 2458894.370579921558
(2020-Feb-14.87057992)
0.00017125 TDB
period 2080.17744973279
5.70
7.2384e-05
1.982e-07
d
yr
n .1730621587337388 6.022e-09 deg/d
Q 3.906070122665928 9.0613e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      9696 days (26.55 yr)  
   first obs. used      1992-03-02  
   last obs. used      2018-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56665  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:55:52  

Additional Information
 Earth MOID = 1.57703 au 
 Jupiter MOID = 1.48811 au 
 T_jup = 2.989 
[ 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 MPO413153  
diameter diameter 5.650 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249435 (2009 FG18)          Discovered 2009-Mar-19 by LINEAR at Socorro
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 FG18 = 2007 TX420 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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