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JPL Small-Body Database Browser
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266850 (2009 UL61)
Classification: Main-belt Asteroid          SPK-ID: 2266850
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02267403949647132 8.4151e-08  
a 2.712987028096032 3.9178e-08 au
q 2.651472653067568 2.2804e-07 au
i 5.154011160868757 9.0364e-06 deg
node 145.4550165390941 8.4271e-05 deg
peri 4.641522723962256 0.00020554 deg
M 278.774839836288 0.00018545 deg
tp 2458968.762992851606
(2020-Apr-29.26299285)
0.00084098 TDB
period 1632.187331602297
4.47
3.5356e-05
9.68e-08
d
yr
n .2205629176441362 4.7777e-09 deg/d
Q 2.774501403124495 4.0066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      4729 days (12.95 yr)  
   first obs. used      2005-11-06  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55913  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:21:38  

Additional Information
 Earth MOID = 1.66229 au 
 Jupiter MOID = 2.19829 au 
 T_jup = 3.356 
[ 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 16.8   n/a MPO454983  

266850 (2009 UL61)          Discovered 2005-Nov-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 UL61 = 2007 EC63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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