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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 ]

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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 .2248140397687576 5.0912e-08  
a 3.189345493178414 4.4791e-08 au
q 2.472335848638694 1.781e-07 au
i 27.12380578564732 6.8415e-06 deg
node 165.5265039618395 1.236e-05 deg
peri 302.5361269448281 1.9942e-05 deg
M 18.40125012276873 1.4199e-05 deg
tp 2458894.160257016434
(2020-Feb-14.66025702)
8.1635e-05 TDB
period 2080.418842126118
5.70
4.3826e-05
1.2e-07
d
yr
n .1730420782154098 3.6453e-09 deg/d
Q 3.906355137718133 5.4861e-08 au
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      10199 days (27.92 yr)  
   first obs. used      1992-03-02  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:23:31  

Additional Information
 Earth MOID = 1.57704 au 
 Jupiter MOID = 1.48695 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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