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43112 (1999 XK31)
Classification: Main-belt Asteroid          SPK-ID: 2043112
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06945413256814938 3.0778e-08  
a 2.977586669627527 1.6548e-08 au
q 2.770780970342062 9.2136e-08 au
i 10.62149392632341 3.4522e-06 deg
node 133.2632220243049 1.9761e-05 deg
peri 298.7929846497974 3.6131e-05 deg
M 52.14431320334413 2.8625e-05 deg
tp 2458928.668679367881
(2020-Mar-20.16867937)
0.0001495 TDB
period 1876.700821543986
5.14
1.5645e-05
4.283e-08
d
yr
n .1918259937158355 1.5991e-09 deg/d
Q 3.184392368912992 1.7697e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1939  
   data-arc span      8245 days (22.57 yr)  
   first obs. used      1998-08-26  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:23:52  

Additional Information
 Earth MOID = 1.80446 au 
 Jupiter MOID = 2.002 au 
 T_jup = 3.231 
[ 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 13.53   n/a MPCxxxxx  
diameter diameter 7.199 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.196   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43112 (1999 XK31)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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