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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2745399942758031 4.6178e-08  
a 2.630137089348696 1.8196e-08 au
q 1.908059267894327 1.1395e-07 au
i 30.21500243973699 1.0025e-05 deg
node 197.5746400832345 9.6183e-06 deg
peri 121.8207895510809 2.2025e-05 deg
M 88.49757080009061 1.6493e-05 deg
tp 2458617.503456732247
(2019-May-14.00345673)
7.0473e-05 TDB
period 1557.994805166449
4.27
1.6168e-05
4.427e-08
d
yr
n .2310662389927155 2.3979e-09 deg/d
Q 3.352214910803064 2.3192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      6318 days (17.30 yr)  
   first obs. used      2002-09-06  
   last obs. used      2019-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53122  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:34:53  

Additional Information
 Earth MOID = 1.0169 au 
 Jupiter MOID = 2.48736 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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