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80321 (1999 XJ85)
Classification: Main-belt Asteroid          SPK-ID: 2080321
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1638933065332214 4.3e-08  
a 2.331986699483003 7.4924e-09 au
q 1.94978968851324 1.0154e-07 au
i 2.963469267757135 3.3148e-06 deg
node 284.1905712759341 9.0206e-05 deg
peri 96.48271687188677 9.0927e-05 deg
M 327.5215750198574 1.0105e-05 deg
tp 2459117.849161291678
(2020-Sep-25.34916129)		 3.642e-05 TDB
period 1300.731118914576
3.56		 6.2687e-06
1.716e-08		 d
yr
n .2767674231553789 1.3338e-09 deg/d
Q 2.714183710452766 8.7204e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      7694 days (21.07 yr)  
   first obs. used      1999-10-22  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:08:42  

Additional Information
 Earth MOID = .955107 au 
 Jupiter MOID = 2.75598 au 
 T_jup = 3.550 
[ 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 15.6   n/a MPO337862  

80321 (1999 XJ85)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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Alternate Designations
 1999 XJ85 = 2001 HB62 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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