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JPL Small-Body Database Browser
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266858 (2009 UK99)
Classification: Main-belt Asteroid          SPK-ID: 2266858
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07189856194614329 6.2421e-08  
a 3.166262819997594 4.1269e-08 au
q 2.938613076496226 2.103e-07 au
i 2.824913761144874 5.2007e-06 deg
node 83.1545645474085 0.0001366 deg
peri 270.7712469997673 0.00014189 deg
M 292.6938305127781 3.8204e-05 deg
tp 2458985.243456869494
(2020-May-15.74345687)
0.00021975 TDB
period 2057.874419659457
5.63
4.0233e-05
1.102e-07
d
yr
n .1749377885068292 3.4202e-09 deg/d
Q 3.393912563498961 4.4236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      6767 days (18.53 yr)  
   first obs. used      2001-03-20  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60164  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:06:53  

Additional Information
 Earth MOID = 1.93428 au 
 Jupiter MOID = 1.96155 au 
 T_jup = 3.198 
[ 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 15.7   n/a MPO450147  

266858 (2009 UK99)          Discovered 2009-Oct-23 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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