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249264 (2008 SB98)
Classification: Main-belt Asteroid          SPK-ID: 2249264
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03647412276866056 3.9947e-08  
a 2.812570876409362 3.0894e-08 au
q 2.709984820967647 1.0561e-07 au
i 4.787127296518356 8.7446e-06 deg
node .4321004882468747 5.364e-05 deg
peri 77.1386420678564 0.00015278 deg
M 117.0649705141003 0.00014617 deg
tp 2458440.254858078275
(2018-Nov-17.75485808)
0.00069489 TDB
period 1722.874487612228
4.72
2.8387e-05
7.772e-08
d
yr
n .208953120258303 3.4428e-09 deg/d
Q 2.915156931851075 3.2021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      257  
   data-arc span      6954 days (19.04 yr)  
   first obs. used      2001-04-13  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60022  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:42:19  

Additional Information
 Earth MOID = 1.73003 au 
 Jupiter MOID = 2.16704 au 
 T_jup = 3.314 
[ 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 16.2   n/a MPO470659  
diameter diameter 3.447 km 0.770 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249264 (2008 SB98)          Discovered 2008-Sep-21 by Spacewatch at Kitt Peak
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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