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102208 (1999 SD22)
Classification: Main-belt Asteroid          SPK-ID: 2102208
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1901488311107614 6.5178e-08  
a 2.528717364119449 8.2991e-09 au
q 2.04788471312265 1.6601e-07 au
i 4.529199361057572 4.8415e-06 deg
node 56.50436875020572 7.3458e-05 deg
peri 330.1741878787047 7.4546e-05 deg
M 87.80823592242024 1.2692e-05 deg
tp 2458842.253781823064
(2019-Dec-24.75378182)
5.1364e-05 TDB
period 1468.753325800129
4.02
7.2305e-06
1.98e-08
d
yr
n .245105827967323 1.2066e-09 deg/d
Q 3.009550015116248 9.8771e-09 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      9218 days (25.24 yr)  
   first obs. used      1995-10-24  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54843  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:51  

Additional Information
 Earth MOID = 1.05278 au 
 Jupiter MOID = 2.44051 au 
 T_jup = 3.422 
[ 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 15.9   n/a MPO493575  

102208 (1999 SD22)          Discovered 1999-Sep-21 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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