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413289 (2003 US155)
Classification: Main-belt Asteroid          SPK-ID: 2413289
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05543215652741937 6.22e-08  
a 2.391203460729342 1.8165e-08 au
q 2.258653896205286 1.4512e-07 au
i 4.538877809800622 4.8744e-06 deg
node 109.9238635532865 0.0001178 deg
peri 329.4341913823035 0.00015537 deg
M 126.4674041063481 0.00010008 deg
tp 2458526.040304049549
(2019-Feb-11.54030405)
0.00037517 TDB
period 1350.589045051719
3.70
1.539e-05
4.214e-08
d
yr
n .2665503628353615 3.0374e-09 deg/d
Q 2.523753025253398 1.9172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   data-arc span      6034 days (16.52 yr)  
   first obs. used      2003-10-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 02:07:34  

Additional Information
 Earth MOID = 1.27576 au 
 Jupiter MOID = 2.58778 au 
 T_jup = 3.526 
[ 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 17.9   n/a MPO460569  

413289 (2003 US155)          Discovered 2003-Oct-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-11-10

Alternate Designations
 2003 US155 = 2014 SO195 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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