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JPL Small-Body Database Browser
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49881 (1999 XO138)
Classification: Main-belt Asteroid          SPK-ID: 2049881
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593050032938323 3.893e-08  
a 2.355601944227232 8.8054e-09 au
q 1.980342768743155 9.0968e-08 au
i 1.518042772564326 3.7861e-06 deg
node 115.1877260533048 0.00016742 deg
peri 81.08350314552175 0.000168 deg
M 10.90227067183123 1.1831e-05 deg
tp 2458560.508679709717
(2019-Mar-18.00867971)
4.3441e-05 TDB
period 1320.53915536145
3.62
7.4044e-06
2.027e-08
d
yr
n .2726159224725624 1.5286e-09 deg/d
Q 2.73086111971131 1.0208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      10107 days (27.67 yr)  
   first obs. used      1991-09-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52274  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:31  

Additional Information
 Earth MOID = .979891 au 
 Jupiter MOID = 2.22534 au 
 T_jup = 3.537 
[ 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 16.0   n/a MPO474380  

49881 (1999 XO138)          Discovered 1999-Dec-04 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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