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103122 (1999 XA189)
Classification: Main-belt Asteroid          SPK-ID: 2103122
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2134316305405893 4.8527e-08  
a 2.646278238239217 1.594e-08 au
q 2.081478758987743 1.3432e-07 au
i 11.69999543718159 4.583e-06 deg
node 301.4949466610632 2.4892e-05 deg
peri 176.2511170435751 2.806e-05 deg
M 290.4531904718185 1.6372e-05 deg
tp 2459504.257070428704
(2021-Oct-16.75707043)		 7.3103e-05 TDB
period 1572.358906126698
4.30		 1.4207e-05
3.89e-08		 d
yr
n .2289553603806737 2.0687e-09 deg/d
Q 3.211077717490691 1.9342e-08 au
   Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      7685 days (21.04 yr)  
   first obs. used      1999-12-12  
   last obs. used      2020-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:23  

Additional Information
 Earth MOID = 1.09767 au 
 Jupiter MOID = 1.89588 au 
 T_jup = 3.331 
[ 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 15.47   n/a E2021B55  
diameter diameter 5.136 km 0.335 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103122 (1999 XA189)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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