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JPL Small-Body Database Browser
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49866 (1999 XG111)
Classification: Main-belt Asteroid          SPK-ID: 2049866
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1142868394316905 4.3146e-08  
a 2.70023263190182 1.6049e-08 au
q 2.391631578671445 1.1964e-07 au
i 13.51502837104983 6.0499e-06 deg
node 49.81709925118484 1.5151e-05 deg
peri 114.2834469029748 2.934e-05 deg
M 90.30738532007187 2.351e-05 deg
tp 2458193.943446198940
(2018-Mar-16.44344620)
0.00010604 TDB
period 1620.690919681086
4.44
1.4449e-05
3.956e-08
d
yr
n .2221274862642159 1.9803e-09 deg/d
Q 3.008833685132194 1.7883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1366  
   data-arc span      12795 days (35.03 yr)  
   first obs. used      1983-05-08  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46552  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 14:50:57  

Additional Information
 Earth MOID = 1.432 au 
 Jupiter MOID = 2.0448 au 
 T_jup = 3.319 
[ 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 14.2   n/a MPO436132  

49866 (1999 XG111)          Discovered 1999-Dec-07 by CSS at Catalina
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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