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JPL Small-Body Database Browser
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80285 (1999 XH40)
Classification: Main-belt Asteroid          SPK-ID: 2080285
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1729257938313459 4.1396e-08  
a 2.318458658707893 8.9298e-09 au
q 1.917537354685673 9.5161e-08 au
i 3.079646398377546 4.9118e-06 deg
node 30.97277929027027 8.7485e-05 deg
peri 88.08841180711052 8.8859e-05 deg
M 131.964687506236 1.4603e-05 deg
tp 2458127.835816939612
(2018-Jan-09.33581694)
5.1708e-05 TDB
period 1289.429082258835
3.53
7.4496e-06
2.04e-08
d
yr
n .2791933305625062 1.613e-09 deg/d
Q 2.719379962730113 1.0474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      9296 days (25.45 yr)  
   first obs. used      1992-11-25  
   last obs. used      2018-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55921  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:15:30  

Additional Information
 Earth MOID = .936851 au 
 Jupiter MOID = 2.3671 au 
 T_jup = 3.557 
[ 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 16.4   n/a MPO436341  

80285 (1999 XH40)          Discovered 1999-Dec-07 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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