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47212 (1999 TN291)
Classification: Main-belt Asteroid          SPK-ID: 2047212
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815499793062641 3.0912e-08  
a 2.248733552262439 7.2041e-09 au
q 1.840476022383892 6.9739e-08 au
i 5.369888194877531 3.997e-06 deg
node 161.9098933687719 4.0058e-05 deg
peri 104.3033842020947 4.2102e-05 deg
M 171.7240886611783 1.5804e-05 deg
tp 2458412.964454691946
(2018-Oct-21.46445469)
5.2535e-05 TDB
period 1231.701376084904
3.37
5.9189e-06
1.621e-08
d
yr
n .2922786374927168 1.4045e-09 deg/d
Q 2.656991082140987 8.512e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      8204 days (22.46 yr)  
   first obs. used      1998-05-01  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:43:21  

Additional Information
 Earth MOID = .833734 au 
 Jupiter MOID = 2.44156 au 
 T_jup = 3.601 
[ 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 15.3   n/a MPO250649  

47212 (1999 TN291)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TN291 = 1998 JC3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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