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249442 (2009 FO57)
Classification: Main-belt Asteroid          SPK-ID: 2249442
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08665800748698871 5.831e-08  
a 3.138267459205972 3.8605e-08 au
q 2.866311454229928 2.0324e-07 au
i 5.535920860084834 5.5238e-06 deg
node 169.9811201027383 5.3804e-05 deg
peri 68.80912101887728 6.5735e-05 deg
M 4.947016278984933 3.4338e-05 deg
tp 2459172.595503154554
(2020-Nov-19.09550315)
0.00019368 TDB
period 2030.641966357477
5.56
3.747e-05
1.026e-07
d
yr
n .1772838373107005 3.2713e-09 deg/d
Q 3.410223464182017 4.1951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      263  
   data-arc span      8952 days (24.51 yr)  
   first obs. used      1995-11-21  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60143  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:17:50  

Additional Information
 Earth MOID = 1.8592 au 
 Jupiter MOID = 1.59909 au 
 T_jup = 3.198 
[ 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 16.05   n/a E2021B55  
diameter diameter 3.550 km 0.563 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249442 (2009 FO57)          Discovered 2009-Mar-19 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 FO57 = 2005 SZ159 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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