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71028 (1999 XJ66)
Classification: Main-belt Asteroid          SPK-ID: 2071028
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .104415797668139 4.2634e-08  
a 2.655030293389018 1.7405e-08 au
q 2.37780318747173 1.1187e-07 au
i 8.207633491724334 4.8839e-06 deg
node 74.00209652978515 3.8526e-05 deg
peri 359.1058147613572 4.6952e-05 deg
M 264.62674748463 2.72e-05 deg
tp 2459419.126523176009
(2021-Jul-23.62652318)
0.00012001 TDB
period 1580.165763132343
4.33
1.5538e-05
4.254e-08
d
yr
n .2278241994601733 2.2402e-09 deg/d
Q 2.932257399306305 1.9222e-08 au
  Orbit Determination Parameters
   # obs. used (total)      628  
   data-arc span      7685 days (21.04 yr)  
   first obs. used      1997-05-27  
   last obs. used      2018-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61923  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:13:03  

Additional Information
 Earth MOID = 1.39264 au 
 Jupiter MOID = 2.31614 au 
 T_jup = 3.366 
[ 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 15.3   n/a MPO493362  
diameter diameter 3.401 km 0.387 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.116   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71028 (1999 XJ66)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XJ66 = 1997 KL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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