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JPL Small-Body Database Browser
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344300 (2001 US86)
Classification: Main-belt Asteroid          SPK-ID: 2344300
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1459530172963 7.6196e-08  
a 2.394698026057129 2.1689e-08 au
q 2.045184623640597 1.8711e-07 au
i 2.22704274739663 8.8522e-06 deg
node 12.1379902665941 0.00018329 deg
peri 73.3986533219236 0.00018789 deg
M 329.8401162076619 4.1246e-05 deg
tp 2459113.897041549369
(2020-Sep-21.39704155)
0.00015603 TDB
period 1353.55080406986
3.71
1.8389e-05
5.035e-08
d
yr
n .2659671132531939 3.6133e-09 deg/d
Q 2.744211428473661 2.4854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      6551 days (17.94 yr)  
   first obs. used      2001-10-18  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69642  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 10:23:58  

Additional Information
 Earth MOID = 1.06271 au 
 Jupiter MOID = 2.45536 au 
 T_jup = 3.514 
[ 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 18.1   n/a MPO494802  

344300 (2001 US86)          Discovered 2001-Oct-18 by Spacewatch at Kitt Peak
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2001 US86 = 2005 WD203 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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