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JPL Small-Body Database Browser
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226542 (2003 UM222)
Classification: Outer Main-belt Asteroid          SPK-ID: 2226542
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1875369957079726 4.6839e-08  
a 3.207227924254243 3.2907e-08 au
q 2.605754034788885 1.514e-07 au
i 4.421450399077389 6.794e-06 deg
node 312.3833231992774 8.5574e-05 deg
peri 116.5122926806869 8.8715e-05 deg
M 231.9501842197336 2.2111e-05 deg
tp 2459346.724701393251
(2021-May-12.22470139)
0.00013408 TDB
period 2097.940484057849
5.74
3.2288e-05
8.84e-08
d
yr
n .171596860223454 2.6409e-09 deg/d
Q 3.808701813719601 3.9078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7088 days (19.41 yr)  
   first obs. used      1997-11-23  
   last obs. used      2017-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58438  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:46:15  

Additional Information
 Earth MOID = 1.6236 au 
 Jupiter MOID = 1.51999 au 
 T_jup = 3.160 
[ 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 15.4   n/a MPO454626  
diameter diameter 3.166 km 0.612 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.147   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226542 (2003 UM222)          Discovered 2003-Oct-22 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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