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452317 (1999 XK219)
Classification: Mars-crossing Asteroid          SPK-ID: 2452317
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362936248430314 5.1048e-07  
a 1.926718727670874 1.1074e-08 au
q 1.664119248223657 9.8496e-07 au
i 25.13440266364669 2.4721e-05 deg
node 98.9973424033775 2.1722e-05 deg
peri 322.2765882008184 8.4476e-05 deg
M 263.611156038475 6.945e-05 deg
tp 2459262.047260684459
(2021-Feb-16.54726068)
0.00018836 TDB
period 976.8455557366076
2.67
8.4214e-06
2.306e-08
d
yr
n .3685331809986438 3.1771e-09 deg/d
Q 2.18931820711809 1.2583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      5912 days (16.19 yr)  
   first obs. used      1999-12-15  
   last obs. used      2016-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67552  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 10:51:08  

Additional Information
 Earth MOID = .709729 au 
 Jupiter MOID = 3.08419 au 
 T_jup = 3.792 
[ 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 18.4   n/a MPO357285  

452317 (1999 XK219)          Discovered 1999-Dec-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-01-04

Alternate Designations
 1999 XK219 = 2007 YD40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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