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344964 (2004 XN18)
Classification: Main-belt Asteroid          SPK-ID: 2344964
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052799217887994 6.9015e-08  
a 2.511226531456476 2.6179e-08 au
q 2.24684479863078 1.9013e-07 au
i 13.80559291399016 8.9275e-06 deg
node 78.55920404731157 2.3994e-05 deg
peri 275.1854645882378 4.9465e-05 deg
M 27.22894288885172 4.296e-05 deg
tp 2458890.560047808763
(2020-Feb-11.06004781)
0.00017323 TDB
period 1453.540923362469
3.98
2.2729e-05
6.223e-08
d
yr
n .2476710453856462 3.8728e-09 deg/d
Q 2.775608264282172 2.8935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      6834 days (18.71 yr)  
   first obs. used      2000-11-21  
   last obs. used      2019-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57701  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:31:21  

Additional Information
 Earth MOID = 1.29308 au 
 Jupiter MOID = 2.62744 au 
 T_jup = 3.414 
[ 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 15.7   n/a MPO437461  

344964 (2004 XN18)          Discovered 2004-Dec-08 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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