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80284 (1999 XH39)
Classification: Main-belt Asteroid          SPK-ID: 2080284
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1460368179642518 3.1146e-08  
a 2.352509231670049 7.7973e-09 au
q 2.008956269245428 7.5048e-08 au
i 5.979939992119125 3.7681e-06 deg
node 133.6017999809437 3.2185e-05 deg
peri 258.8275215039475 3.4824e-05 deg
M 275.5155518943799 1.3082e-05 deg
tp 2459309.792722947757
(2021-Apr-05.29272295)
4.8355e-05 TDB
period 1317.93936940905
3.61
6.5524e-06
1.794e-08
d
yr
n .2731536885201482 1.358e-09 deg/d
Q 2.69606219409467 8.936e-09 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      9184 days (25.14 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53926  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:20:09  

Additional Information
 Earth MOID = 1.02474 au 
 Jupiter MOID = 2.74466 au 
 T_jup = 3.535 
[ 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 16.1   n/a MPO436341  

80284 (1999 XH39)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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