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80387 (1999 XG168)
Classification: Main-belt Asteroid          SPK-ID: 2080387
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2395217711887035 4.69e-08  
a 2.360259637570096 7.3006e-09 au
q 1.794926068714099 1.0923e-07 au
i 2.090109618687379 4.8239e-06 deg
node 359.1518218210812 0.00010213 deg
peri 30.95354731348087 0.0001025 deg
M 10.04408338323904 7.8845e-06 deg
tp 2459359.547323074632
(2021-May-25.04732307)
2.8934e-05 TDB
period 1324.457711624689
3.63
6.1451e-06
1.682e-08
d
yr
n .2718093577773761 1.2611e-09 deg/d
Q 2.925593206426093 9.0493e-09 au
  Orbit Determination Parameters
   # obs. used (total)      899  
   data-arc span      9114 days (24.95 yr)  
   first obs. used      1995-08-01  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:46:58  

Additional Information
 Earth MOID = .799938 au 
 Jupiter MOID = 2.52644 au 
 T_jup = 3.511 
[ 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 15.83   n/a E2021B10  

80387 (1999 XG168)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 XG168 = 2002 NF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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