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JPL Small-Body Database Browser
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442489 (2011 UA397)
Classification: Main-belt Asteroid          SPK-ID: 2442489
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08345257940876098 1.3406e-07  
a 2.569855577571202 3.6173e-08 au
q 2.355394500914894 3.5914e-07 au
i 8.26629254450269 7.4582e-06 deg
node 238.4370230956795 9.478e-05 deg
peri 67.19411284252978 0.00016979 deg
M 345.989063366575 0.0001263 deg
tp 2458659.063384949662
(2019-Jun-24.56338495)
0.00052718 TDB
period 1504.740127907117
4.12
3.1771e-05
8.698e-08
d
yr
n .2392439686583687 5.0513e-09 deg/d
Q 2.784316654227511 3.9191e-08 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      5801 days (15.88 yr)  
   first obs. used      2003-10-18  
   last obs. used      2019-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70555  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:17  

Additional Information
 Earth MOID = 1.35414 au 
 Jupiter MOID = 2.38053 au 
 T_jup = 3.411 
[ 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 17.3   n/a MPO343066  

442489 (2011 UA397)          Discovered 2003-Oct-18 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 UA397 = 2003 UQ305 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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