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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08314240000692015 1.3436e-07  
a 2.569280964668268 3.5789e-08 au
q 2.355664778973654 3.5971e-07 au
i 8.266026570394686 7.4577e-06 deg
node 238.4346956044004 9.4795e-05 deg
peri 67.29124079556799 0.00017015 deg
M 81.63752006023356 0.00012555 deg
tp 2458659.383184606420
(2019-Jun-24.88318461)
0.00052877 TDB
period 1504.235472256917
4.12
3.143e-05
8.605e-08
d
yr
n .2393242325683659 5.0005e-09 deg/d
Q 2.782897150362883 3.8765e-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 = 1.35518 au 
 Jupiter MOID = 2.38227 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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