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103212 (1999 XV258)
Classification: Main-belt Asteroid          SPK-ID: 2103212
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09985966918512058 4.2925e-08  
a 2.714294988358531 1.7635e-08 au
q 2.443246388750218 1.1066e-07 au
i 5.97297096983611 4.2475e-06 deg
node 92.60787165743722 4.1236e-05 deg
peri 63.22027238386616 4.6952e-05 deg
M 175.5944121672365 2.2387e-05 deg
tp 2458403.804828918544
(2018-Oct-12.30482892)
9.9754e-05 TDB
period 1633.367816489316
4.47
1.5918e-05
4.358e-08
d
yr
n .2204035100763569 2.1479e-09 deg/d
Q 2.985343587966845 1.9396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      8990 days (24.61 yr)  
   first obs. used      1996-01-12  
   last obs. used      2020-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5425  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:06  

Additional Information
 Earth MOID = 1.46021 au 
 Jupiter MOID = 2.01991 au 
 T_jup = 3.346 
[ 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 15.83   n/a E2021B55  
diameter diameter 2.464 km 0.588 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.184   0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103212 (1999 XV258)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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