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47447 (1999 XW213)
Classification: Main-belt Asteroid          SPK-ID: 2047447
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1474784401683326 3.8548e-08  
a 2.273360773074736 8.2526e-09 au
q 1.938089072321799 8.9696e-08 au
i 3.982077025834014 4.55e-06 deg
node 142.2008681180746 5.5663e-05 deg
peri 240.4656999433997 5.7566e-05 deg
M 279.7457851691688 1.5109e-05 deg
tp 2458879.604166159148
(2020-Jan-31.10416616)
5.2876e-05 TDB
period 1251.990316385139
3.43
6.8173e-06
1.866e-08
d
yr
n .2875421601018649 1.5657e-09 deg/d
Q 2.608632473827674 9.4697e-09 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      8917 days (24.41 yr)  
   first obs. used      1995-06-03  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57059  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:32:07  

Additional Information
 Earth MOID = .943844 au 
 Jupiter MOID = 2.84561 au 
 T_jup = 3.593 
[ 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 16.0   n/a MPO493189  
diameter diameter 1.658 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.406   0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47447 (1999 XW213)          Discovered 1999-Dec-14 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XW213 = 1995 LO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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