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JPL Small-Body Database Browser
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390676 (2002 TW228)
Classification: Main-belt Asteroid          SPK-ID: 2390676
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2745064000160026 4.6244e-08  
a 2.629688363113298 1.8464e-08 au
q 1.907822077391092 1.1415e-07 au
i 30.21813353474196 1.0121e-05 deg
node 197.5788313828665 1.0085e-05 deg
peri 121.7717837582869 2.2402e-05 deg
M 356.0957681186322 1.6524e-05 deg
tp 2458617.392267744239
(2019-May-13.89226774)
7.1535e-05 TDB
period 1557.596109223842
4.26
1.6405e-05
4.491e-08
d
yr
n .231125384731084 2.4343e-09 deg/d
Q 3.351554648835505 2.3533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      6292 days (17.23 yr)  
   first obs. used      2002-09-06  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55437  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:31:22  

Additional Information
 Earth MOID = 1.01604 au 
 Jupiter MOID = 2.48499 au 
 T_jup = 3.160 
[ 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 16.6   n/a MPO503472  

390676 (2002 TW228)          Discovered 2002-Oct-07 by NEAT at Haleakala
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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