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70987 (1999 XA29)
Classification: Main-belt Asteroid          SPK-ID: 2070987
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06799291752493214 4.9572e-08  
a 2.800256963159253 1.9464e-08 au
q 2.609859322414549 1.4319e-07 au
i 4.735344020949272 4.388e-06 deg
node 105.7487316197717 6.4095e-05 deg
peri 233.2540887370171 7.1872e-05 deg
M 211.4278368564352 3.4836e-05 deg
tp 2459706.866674172703
(2022-May-07.36667417)
0.00016819 TDB
period 1711.572325001769
4.69
1.7845e-05
4.886e-08
d
yr
n .2103329171319874 2.1929e-09 deg/d
Q 2.990654603903957 2.0787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      7465 days (20.44 yr)  
   first obs. used      1999-11-15  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57287  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:42:30  

Additional Information
 Earth MOID = 1.60373 au 
 Jupiter MOID = 2.27316 au 
 T_jup = 3.317 
[ 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 15.3   n/a MPO426426  

70987 (1999 XA29)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XA29 = 2002 JF131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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