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102209 (1999 SG25)
Classification: Main-belt Asteroid          SPK-ID: 2102209
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1188110170693103 3.034e-08  
a 2.53722583911379 1.1281e-08 au
q 2.235775456634146 7.6366e-08 au
i 12.57214393413993 4.4336e-06 deg
node 183.81829808258 1.7789e-05 deg
peri 248.2427301468629 2.8394e-05 deg
M 36.8867619068668 2.1817e-05 deg
tp 2459049.246599605577
(2020-Jul-18.74659961)
8.9363e-05 TDB
period 1476.172516293867
4.04
9.8455e-06
2.696e-08
d
yr
n .2438739348052822 1.6265e-09 deg/d
Q 2.838676221593433 1.2622e-08 au
  Orbit Determination Parameters
   # obs. used (total)      704  
   data-arc span      10697 days (29.29 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57124  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:51  

Additional Information
 Earth MOID = 1.28182 au 
 Jupiter MOID = 2.49647 au 
 T_jup = 3.404 
[ 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 MPO412746  

102209 (1999 SG25)          Discovered 1999-Sep-30 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 SG25 = 1991 TV9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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