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JPL Small-Body Database Browser
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71111 (1999 XO155)
Classification: Main-belt Asteroid          SPK-ID: 2071111
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06125561015294672 4.1504e-08  
a 3.111039797285784 2.9463e-08 au
q 2.920471156292944 1.2995e-07 au
i 9.381276035061294 5.1333e-06 deg
node 234.1345878684312 2.8331e-05 deg
peri 54.41465012894814 5.2515e-05 deg
M 339.2385809232994 4.5857e-05 deg
tp 2458716.087617247038
(2019-Aug-20.58761725)
0.00025583 TDB
period 2004.272542989713
5.49
2.8472e-05
7.795e-08
d
yr
n .1796162908378713 2.5516e-09 deg/d
Q 3.301608438278625 3.1268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      9004 days (24.65 yr)  
   first obs. used      1993-10-11  
   last obs. used      2018-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58829  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:15:43  

Additional Information
 Earth MOID = 1.91591 au 
 Jupiter MOID = 1.79708 au 
 T_jup = 3.195 
[ 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 14.4   n/a MPO436280  

71111 (1999 XO155)          Discovered 1999-Dec-08 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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