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385211 (1999 TG212)
Classification: Main-belt Asteroid          SPK-ID: 2385211
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2649903284146199 9.4585e-08  
a 2.738850864294372 2.4747e-08 au
q 2.01308187428634 2.6827e-07 au
i 3.433035830637656 1.4533e-05 deg
node 341.2336444968465 0.00012735 deg
peri 69.63450371704778 0.00013854 deg
M 225.97223643082 4.0152e-05 deg
tp 2459816.872528406748
(2022-Aug-25.37252841)
0.00018996 TDB
period 1655.583174092853
4.53
2.2439e-05
6.143e-08
d
yr
n .2174460369212532 2.9471e-09 deg/d
Q 3.464619854302403 3.1305e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      7081 days (19.39 yr)  
   first obs. used      1999-10-10  
   last obs. used      2019-02-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59211  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:04:32  

Additional Information
 Earth MOID = 1.02596 au 
 Jupiter MOID = 1.95025 au 
 T_jup = 3.296 
[ 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 17.3   n/a MPO427920  

385211 (1999 TG212)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Alternate Designations
 1999 TG212 = 2008 SF159 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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