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249446 (2009 FS68)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249446
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1238336605972495 7.8766e-08  
a 3.221934829475119 4.8259e-08 au
q 2.82295084533544 2.3726e-07 au
i 23.64256212839812 7.6217e-06 deg
node 45.69906719816052 1.3664e-05 deg
peri 330.6561560788169 2.8126e-05 deg
M 110.4742469991717 2.4918e-05 deg
tp 2457952.265555955467
(2017-Jul-17.76555596)
0.00014151 TDB
period 2112.387331843786
5.78
4.746e-05
1.299e-07
d
yr
n .1704232905457618 3.829e-09 deg/d
Q 3.620918813614797 5.4236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      6677 days (18.28 yr)  
   first obs. used      2000-11-19  
   last obs. used      2019-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52661  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:20:43  

Additional Information
 Earth MOID = 1.8456 au 
 Jupiter MOID = 1.85176 au 
 T_jup = 3.046 
[ 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 14.8   n/a MPO254460  
diameter diameter 7.960 km 0.304 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249446 (2009 FS68)          Discovered 2009-Mar-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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