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266846 (2009 UA46)
Classification: Main-belt Asteroid          SPK-ID: 2266846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .06217412711998915 4.514e-08  
a 2.940574406745593 3.0057e-08 au
q 2.757746759774806 1.4362e-07 au
i 2.571871103045086 6.1358e-06 deg
node 45.64219586694874 0.00010649 deg
peri 55.1478244137338 0.0001206 deg
M 343.272664382363 5.4668e-05 deg
tp 2459086.079738743671
(2020-Aug-24.57973874)
0.0002798 TDB
period 1841.817887317169
5.04
2.8239e-05
7.731e-08
d
yr
n .1954590638298033 2.9969e-09 deg/d
Q 3.123402053716381 3.1926e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      8658 days (23.70 yr)  
   first obs. used      1996-03-12  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5455  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:34:56  

Additional Information
 Earth MOID = 1.77566 au 
 Jupiter MOID = 1.96432 au 
 T_jup = 3.269 
[ 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 16.2   n/a MPO454983  

266846 (2009 UA46)          Discovered 2009-Oct-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 UA46 = 2004 TN335 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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