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43117 (1999 XT42)
Classification: Main-belt Asteroid          SPK-ID: 2043117
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1555017126187049 3.936e-08  
a 2.583097519857835 9.8361e-09 au
q 2.181421431658812 1.0258e-07 au
i 4.97914405605347 4.0771e-06 deg
node 247.8227646483384 4.7577e-05 deg
peri 67.82061766418119 4.9406e-05 deg
M 108.5098366798985 1.2269e-05 deg
tp 2458743.436817186030
(2019-Sep-16.93681719)
5.141e-05 TDB
period 1516.385526396345
4.15
8.6613e-06
2.371e-08
d
yr
n .237406644770299 1.356e-09 deg/d
Q 2.984773608056857 1.1366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1096  
   data-arc span      9226 days (25.26 yr)  
   first obs. used      1995-10-30  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:15:57  

Additional Information
 Earth MOID = 1.17167 au 
 Jupiter MOID = 2.29931 au 
 T_jup = 3.401 
[ 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 15.09   n/a E2021B10  
diameter diameter 2.731 km 0.578 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.237   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43117 (1999 XT42)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

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