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JPL Small-Body Database Browser
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160663 (1999 XK259)
Classification: Main-belt Asteroid          SPK-ID: 2160663
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1399448603543524 4.6802e-08  
a 2.615532493068758 1.6774e-08 au
q 2.249502163573979 1.2369e-07 au
i 12.92526620334102 5.1946e-06 deg
node 140.7886771989312 2.1694e-05 deg
peri 285.0301637364127 2.7152e-05 deg
M 208.3899059590325 1.7275e-05 deg
tp 2459251.175152844498
(2021-Feb-05.67515284)
7.5882e-05 TDB
period 1545.036011657133
4.23
1.4863e-05
4.069e-08
d
yr
n .2330042777539411 2.2415e-09 deg/d
Q 2.981562822563536 1.9121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      6768 days (18.53 yr)  
   first obs. used      1999-10-09  
   last obs. used      2018-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54721  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:48:20  

Additional Information
 Earth MOID = 1.30353 au 
 Jupiter MOID = 2.34765 au 
 T_jup = 3.358 
[ 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 15.3   n/a MPO436810  

160663 (1999 XK259)          Discovered 1999-Dec-09 by LONEOS at Anderson Mesa
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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