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102251 (1999 TD28)
Classification: Main-belt Asteroid          SPK-ID: 2102251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1889088587924618 4.9869e-08  
a 2.332899283196776 7.9023e-09 au
q 1.892193941930321 1.2019e-07 au
i 2.54029225259249 4.2122e-06 deg
node 5.985751881128616 8.2267e-05 deg
peri 331.7386835281303 8.2695e-05 deg
M 16.53916442453107 8.3896e-06 deg
tp 2459140.706568855838
(2020-Oct-18.20656886)
3.0218e-05 TDB
period 1301.49472242814
3.56
6.6129e-06
1.811e-08
d
yr
n .2766050401866894 1.4054e-09 deg/d
Q 2.773604624463231 9.3951e-09 au
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      9747 days (26.69 yr)  
   first obs. used      1994-04-03  
   last obs. used      2020-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54149  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:58  

Additional Information
 Earth MOID = .881659 au 
 Jupiter MOID = 2.60762 au 
 T_jup = 3.544 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.28   n/a E2021B55  

102251 (1999 TD28)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 TD28 = 1996 XG22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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