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249998 (2001 XO204)
Classification: Main-belt Asteroid          SPK-ID: 2249998
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1257911363886668 4.6468e-08  
a 2.815851314713813 2.1524e-08 au
q 2.461642177934441 1.3753e-07 au
i 5.778232446226593 4.939e-06 deg
node 151.6891497651685 4.8719e-05 deg
peri 245.5408386698703 5.3363e-05 deg
M 352.4772238847241 2.1821e-05 deg
tp 2459036.565224643503
(2020-Jul-06.06522464)
0.00010478 TDB
period 1725.88957489998
4.73
1.9789e-05
5.418e-08
d
yr
n .2085880842178811 2.3916e-09 deg/d
Q 3.170060451493184 2.4232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      8343 days (22.84 yr)  
   first obs. used      1996-11-14  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62303  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:19:28  

Additional Information
 Earth MOID = 1.47534 au 
 Jupiter MOID = 2.26368 au 
 T_jup = 3.300 
[ 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 16.1   n/a MPO494363  

249998 (2001 XO204)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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