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178535 (1999 UA)
Classification: Main-belt Asteroid          SPK-ID: 2178535
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2395941737586816 5.0152e-08  
a 2.3204919158834 6.0006e-09 au
q 1.764515572583617 1.1903e-07 au
i 4.443838759745796 2.9997e-06 deg
node 245.1786341257817 5.8882e-05 deg
peri 125.475677699289 5.9379e-05 deg
M 314.0787284719465 7.1799e-06 deg
tp 2459165.194812685864
(2020-Nov-11.69481269)
2.6034e-05 TDB
period 1291.12567213411
3.53
5.0081e-06
1.371e-08
d
yr
n .2788264595536651 1.0815e-09 deg/d
Q 2.876468259183183 7.4383e-09 au
  Orbit Determination Parameters
   # obs. used (total)      764  
   data-arc span      10193 days (27.91 yr)  
   first obs. used      1992-11-24  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47952  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:26:42  

Additional Information
 Earth MOID = .769171 au 
 Jupiter MOID = 2.60854 au 
 T_jup = 3.535 
[ 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 16.3   n/a MPO469920  

178535 (1999 UA)          Discovered 1999-Oct-16 by Pravec, P., Kusnirak, P. at Ondrejov
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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