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JPL Small-Body Database Browser
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266844 (2009 UL33)
Classification: Main-belt Asteroid          SPK-ID: 2266844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .133458265055643 1.05e-07  
a 3.090205917165083 4.0778e-08 au
q 2.677792396795549 3.2099e-07 au
i 8.230600073984387 1.0701e-05 deg
node 225.4924401017725 4.9779e-05 deg
peri 322.6173709327848 5.452e-05 deg
M 142.9477923462241 2.4225e-05 deg
tp 2457812.630100929703
(2017-Feb-28.13010093)
0.00012959 TDB
period 1984.173095715521
5.43
3.9274e-05
1.075e-07
d
yr
n .1814357833887365 3.5913e-09 deg/d
Q 3.502619437534617 4.622e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      7657 days (20.96 yr)  
   first obs. used      1998-11-14  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 19:34:56  

Additional Information
 Earth MOID = 1.68387 au 
 Jupiter MOID = 1.50769 au 
 T_jup = 3.196 
[ 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 15.5   n/a MPO454983  
diameter diameter 5.206 km 1.676 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266844 (2009 UL33)          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 UL33 = 2003 TQ40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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