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JPL Small-Body Database Browser
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49962 (1999 XU227)
Classification: Main-belt Asteroid          SPK-ID: 2049962
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06157654669526682 3.7998e-08  
a 2.433510667323433 9.291e-09 au
q 2.283663484083562 9.2373e-08 au
i 2.990396528757163 3.7569e-06 deg
node 111.3616050324245 8.0658e-05 deg
peri 45.88144705020658 8.6345e-05 deg
M 348.9128533552171 3.1077e-05 deg
tp 2458643.203709233004
(2019-Jun-08.70370923)
0.00011975 TDB
period 1386.590780876453
3.80
7.9409e-06
2.174e-08
d
yr
n .2596295929304008 1.4869e-09 deg/d
Q 2.583357850563305 9.8631e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1162  
   data-arc span      7999 days (21.90 yr)  
   first obs. used      1997-06-07  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5227  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:52:54  

Additional Information
 Earth MOID = 1.2946 au 
 Jupiter MOID = 2.39286 au 
 T_jup = 3.502 
[ 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 15.1   n/a MPO385137  

49962 (1999 XU227)          Discovered 1999-Dec-15 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XU227 = 1997 LE8 = 1998 RA35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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