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437854 (1999 XW16)
Classification: Main-belt Asteroid          SPK-ID: 2437854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2870439296720145 7.7027e-08  
a 2.623515312885062 1.7357e-08 au
q 1.870451167919829 2.0174e-07 au
i 29.20106811256433 1.2245e-05 deg
node 256.1751292761587 1.5644e-05 deg
peri 112.2849253325907 2.5949e-05 deg
M 336.9379202136952 1.6507e-05 deg
tp 2459099.930540801203
(2020-Sep-07.43054080)
7.1286e-05 TDB
period 1552.114771092308
4.25
1.5403e-05
4.217e-08
d
yr
n .2319416107010233 2.3018e-09 deg/d
Q 3.376579457850294 2.234e-08 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      7649 days (20.94 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42297  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:25:50  

Additional Information
 Earth MOID = 1.02571 au 
 Jupiter MOID = 2.50168 au 
 T_jup = 3.171 
[ 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 16.1   n/a MPO434613  

437854 (1999 XW16)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: Last Updated: 2015-07-06

Alternate Designations
 1999 XW16 = 2003 TC10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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