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134707 (1999 XD212)
Classification: Main-belt Asteroid          SPK-ID: 2134707
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882981663533435 7.287e-08  
a 2.4585594117769 1.3309e-08 au
q 1.995617182668555 1.7437e-07 au
i 10.53459755340008 7.0557e-06 deg
node 335.3819525969894 2.5832e-05 deg
peri 54.22111166263853 3.0885e-05 deg
M 157.1669011375541 1.3425e-05 deg
tp 2458385.778960237768
(2018-Sep-24.27896024)		 5.2765e-05 TDB
period 1408.054575821405
3.86		 1.1433e-05
3.13e-08		 d
yr
n .2556719080224498 2.076e-09 deg/d
Q 2.921501640885245 1.5815e-08 au
   Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      21742 days (59.53 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54148  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:22:40  

Additional Information
 Earth MOID = 1.01913 au 
 Jupiter MOID = 2.61827 au 
 T_jup = 3.444 
[ 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 16.1   n/a MPO469413  
diameter diameter 2.276 km 0.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.163   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134707 (1999 XD212)          Discovered 1999-Dec-13 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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