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86356 (1999 XR122)
Classification: Main-belt Asteroid          SPK-ID: 2086356
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1677741860965023 5.5679e-08  
a 3.112808009313969 2.2966e-08 au
q 2.590559179076644 1.8522e-07 au
i 7.049257340135777 4.6165e-06 deg
node 276.4985875317854 3.9394e-05 deg
peri 88.57238622237985 4.1925e-05 deg
M 304.565140166417 1.4798e-05 deg
tp 2459309.392513581186
(2021-Apr-04.89251358)
8.4188e-05 TDB
period 2005.981529006414
5.49
2.22e-05
6.078e-08
d
yr
n .179463267629544 1.9861e-09 deg/d
Q 3.635056839551294 2.6819e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      8077 days (22.11 yr)  
   first obs. used      1998-06-26  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:00:40  

Additional Information
 Earth MOID = 1.60097 au 
 Jupiter MOID = 1.93131 au 
 T_jup = 3.185 
[ 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 14.3   n/a MPO474750  

86356 (1999 XR122)          Discovered 1999-Dec-07 by CSS at Catalina
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 XR122 = 1998 ME42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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