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102458 (1999 TH225)
Classification: Main-belt Asteroid          SPK-ID: 2102458
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07511092857534238 4.3844e-08  
a 3.088595689466328 2.8332e-08 au
q 2.856608399236712 1.3665e-07 au
i 9.234843634742743 6.876e-06 deg
node 352.2565815228243 2.8966e-05 deg
peri 105.9356288361556 5.7533e-05 deg
M 236.7911884832099 5.2763e-05 deg
tp 2459879.045986337678
(2022-Oct-26.54598634)
0.00029471 TDB
period 1982.622444566603
5.43
2.728e-05
7.469e-08
d
yr
n .1815776881708284 2.4984e-09 deg/d
Q 3.320582979695943 3.046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      7654 days (20.96 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56303  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:54:39  

Additional Information
 Earth MOID = 1.89089 au 
 Jupiter MOID = 1.80134 au 
 T_jup = 3.201 
[ 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 14.96   n/a E2021B55  

102458 (1999 TH225)          Discovered 1999-Oct-02 by Spacewatch at Kitt Peak
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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