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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884161876511141 7.2302e-08  
a 2.458325178341643 1.3021e-08 au
q 1.995136920231765 1.732e-07 au
i 10.5348311996702 6.9866e-06 deg
node 335.3832520844067 2.5739e-05 deg
peri 54.19348777927135 3.0421e-05 deg
M 208.3429380777962 1.312e-05 deg
tp 2459793.585843725496
(2022-Aug-02.08584373)		 5.1823e-05 TDB
period 1407.853357008223
3.85		 1.1186e-05
3.063e-08		 d
yr
n .2557084501790887 2.0317e-09 deg/d
Q 2.921513436451521 1.5475e-08 au
   Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      21762 days (59.58 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53951  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:09:34  

Additional Information
 Earth MOID = 1.01738 au 
 Jupiter MOID = 2.61938 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 16.07   n/a E2021B55  
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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