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71202 (1999 XJ241)
Classification: Main-belt Asteroid          SPK-ID: 2071202
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1790191541653446 5.4126e-08  
a 2.670823692242908 1.8474e-08 au
q 2.19269509393282 1.4306e-07 au
i 16.20430021015209 4.876e-06 deg
node 15.82236612644769 1.8432e-05 deg
peri 36.830396444737 2.3815e-05 deg
M 292.3418766775144 1.5847e-05 deg
tp 2459300.128902528959
(2021-Mar-26.62890253)
7.1708e-05 TDB
period 1594.286090323417
4.36
1.6542e-05
4.529e-08
d
yr
n .2258063983528643 2.3429e-09 deg/d
Q 3.148952290552996 2.1781e-08 au
  Orbit Determination Parameters
   # obs. used (total)      754  
   data-arc span      15686 days (42.95 yr)  
   first obs. used      1975-05-11  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58537  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:41:06  

Additional Information
 Earth MOID = 1.22065 au 
 Jupiter MOID = 2.36582 au 
 T_jup = 3.302 
[ 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 14.8   n/a MPO263888  

71202 (1999 XJ241)          Discovered 1999-Dec-12 by CSS at Catalina
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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