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JPL Small-Body Database Browser
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71201 (1999 XL239)
Classification: Main-belt Asteroid          SPK-ID: 2071201
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515608513431012 6.491e-08  
a 2.680610314749906 2.0218e-08 au
q 2.274334733327312 1.7832e-07 au
i 13.80936420437379 5.7627e-06 deg
node 279.0413711270527 3.1881e-05 deg
peri 34.20783516050869 3.8047e-05 deg
M 239.3970587250027 2.0945e-05 deg
tp 2459137.537178188851
(2020-Oct-15.03717819)
9.4228e-05 TDB
period 1603.056957849395
4.39
1.8136e-05
4.965e-08
d
yr
n .2245709350733011 2.5407e-09 deg/d
Q 3.0868858961725 2.3282e-08 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      9930 days (27.19 yr)  
   first obs. used      1992-01-30  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57685  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:15:58  

Additional Information
 Earth MOID = 1.27149 au 
 Jupiter MOID = 2.17774 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 14.8   n/a MPO337799  

71201 (1999 XL239)          Discovered 1999-Dec-07 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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