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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1339218596638795 9.8823e-08  
a 2.643785961174975 2.5212e-08 au
q 2.289725228701166 2.5172e-07 au
i 1.334062189564894 8.7949e-06 deg
node 36.07914127114704 0.00033216 deg
peri 352.8322380992851 0.00033409 deg
M 245.4163586796834 3.4086e-05 deg
tp 2459500.255961797620
(2021-Oct-12.75596180)
0.00015156 TDB
period 1570.138146894823
4.30
2.246e-05
6.149e-08
d
yr
n .2292791884025952 3.2798e-09 deg/d
Q 2.997846693648786 2.8589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   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      .56754  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:21:10  

Additional Information
 Earth MOID = 1.29467 au 
 Jupiter MOID = 2.43894 au 
 T_jup = 3.381 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456397.5 (2013-Apr-15.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1333428756338648 9.8191e-08  
q 2.290436237527448 2.4855e-07 au
tp 2456366.024193308540
(2013-Mar-14.52419331)
0.00014131 TDB
node 36.18912428672652 0.00033151 deg
peri 353.7076202593666 0.00033348 deg
i 1.335769427105256 8.8019e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      183  
   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      .56754  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:21:10  

Additional Information
 Jupiter MOID = 2.43894 au 
 T_jup = 3.381 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.641415077755146E-15 -2.433101597866074E-14 -1.937195022136681E-12 2.455283681591649E-14 -8.628550006003146E-13 -2.369475491911203E-15
q -2.433101597866074E-14 6.177956106151228E-14 5.261843280933982E-12 -6.184281844823897E-14 2.27232371790105E-12 6.158255153735717E-15
tp -1.937195022136681E-12 5.261843280933982E-12 1.996758247579751E-8 1.105941808639456E-10 5.139377716159238E-9 -4.574815920881161E-12
node 2.455283681591649E-14 -6.184281844823897E-14 1.105941808639456E-10 1.098995397812889E-7 -1.098401778414643E-7 5.031146380024163E-11
peri -8.628550006003146E-13 2.27232371790105E-12 5.139377716159238E-9 -1.098401778414643E-7 1.112075641122721E-7 -5.142194847201142E-11
i -2.369475491911203E-15 6.158255153735717E-15 -4.574815920881161E-12 5.031146380024163E-11 -5.142194847201142E-11 7.747312471371953E-11

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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