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JPL Small-Body Database Browser
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71156 (1999 XA194)
Classification: Main-belt Asteroid          SPK-ID: 2071156
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112104324530951 4.7737e-08  
a 2.706473746021411 1.5578e-08 au
q 2.405485630303422 1.3148e-07 au
i 5.882615896201308 5.3476e-06 deg
node 20.78144271484541 3.9589e-05 deg
peri 359.1788071308781 4.3933e-05 deg
M 183.8622098675657 1.9987e-05 deg
tp 2459396.208866309192
(2021-Jun-30.70886631)
9.3277e-05 TDB
period 1626.313079413165
4.45
1.4042e-05
3.844e-08
d
yr
n .2213595921702244 1.9112e-09 deg/d
Q 3.007461861739401 1.7311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      8960 days (24.53 yr)  
   first obs. used      1994-10-29  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60872  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:36:30  

Additional Information
 Earth MOID = 1.40708 au 
 Jupiter MOID = 2.4503 au 
 T_jup = 3.348 
[ 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 15.0   n/a MPO436280  

71156 (1999 XA194)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XA194 = 1997 HC11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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