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215544 (2002 XH18)
Classification: Main-belt Asteroid          SPK-ID: 2215544
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1488779035034341 4.9148e-08  
a 2.62060657841774 1.9916e-08 au
q 2.230456165115599 1.2677e-07 au
i 5.583708909140315 5.3647e-06 deg
node 84.94430089441006 6.2058e-05 deg
peri 5.695447004575921 6.5563e-05 deg
M 33.9319014706092 2.1789e-05 deg
tp 2458854.448216842398
(2020-Jan-05.94821684)
9.3168e-05 TDB
period 1549.534204037427
4.24
1.7664e-05
4.836e-08
d
yr
n .2323278821867844 2.6485e-09 deg/d
Q 3.010756991719881 2.2881e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      6304 days (17.26 yr)  
   first obs. used      2002-10-29  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:24:34  

Additional Information
 Earth MOID = 1.2471 au 
 Jupiter MOID = 2.1813 au 
 T_jup = 3.382 
[ 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 16.8   n/a MPO454548  

215544 (2002 XH18)          Discovered 2002-Dec-05 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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