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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241648162123747 7.7715e-08  
a 3.220641580081388 4.5711e-08 au
q 2.820751210204651 2.3525e-07 au
i 23.64482106634191 6.9566e-06 deg
node 45.68988468249949 1.2822e-05 deg
peri 330.5228234880841 2.4969e-05 deg
M 178.8179131225767 2.4109e-05 deg
tp 2457951.874192907929
(2017-Jul-17.37419291)
0.00013047 TDB
period 2111.115625728009
5.78
4.4945e-05
1.231e-07
d
yr
n .1705259511192598 3.6304e-09 deg/d
Q 3.620531949958126 5.1386e-08 au
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      7097 days (19.43 yr)  
   first obs. used      2000-11-19  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51741  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:43:56  

Additional Information
 Earth MOID = 1.84421 au 
 Jupiter MOID = 1.85507 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 14.9   n/a MPO470661  
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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