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249257 (2008 SF53)
Classification: Main-belt Asteroid          SPK-ID: 2249257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346618521403595 9.9388e-08  
a 2.64173911769636 2.6865e-08 au
q 2.285997635235729 2.5333e-07 au
i 1.334877102672376 9.3397e-06 deg
node 36.09271899928194 0.00034729 deg
peri 353.0331897324108 0.00034919 deg
M 153.408704120548 3.4871e-05 deg
tp 2457932.185601191095
(2017-Jun-27.68560119)
0.00014852 TDB
period 1568.315076712651
4.29
2.3924e-05
6.55e-08
d
yr
n .2295457114106158 3.5016e-09 deg/d
Q 2.997480600156991 3.0483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      10004 days (27.39 yr)  
   first obs. used      1991-11-07  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:13:48  

Additional Information
 Earth MOID = 1.2903 au 
 Jupiter MOID = 2.43711 au 
 T_jup = 3.381 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO245566  
diameter diameter 2.936 km 0.599 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249257 (2008 SF53)          Discovered 2008-Sep-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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