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JPL Small-Body Database Browser
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447248 (2005 UM221)
Classification: Main-belt Asteroid          SPK-ID: 2447248
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1352011779653028 6.9293e-08  
a 2.229079443598137 1.8717e-08 au
q 1.927705277045427 1.6266e-07 au
i 2.806292622538203 5.7917e-06 deg
node 335.4876248424654 0.00013926 deg
peri 70.16480773212531 0.0001496 deg
M 14.89534669807102 4.3465e-05 deg
tp 2458550.203836106885
(2019-Mar-07.70383611)
0.0001467 TDB
period 1215.588959998238
3.33
1.531e-05
4.192e-08
d
yr
n .2961527389986512 3.7301e-09 deg/d
Q 2.530453610150847 2.1248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      5727 days (15.68 yr)  
   first obs. used      2003-01-10  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51308  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 13:16:53  

Additional Information
 Earth MOID = .938524 au 
 Jupiter MOID = 2.82833 au 
 T_jup = 3.630 
[ 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 18.4   n/a MPO456118  

447248 (2005 UM221)          Discovered 2005-Oct-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

Alternate Designations
 2005 UM221 = 2013 BU8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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