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447243 (2005 UM208)
Classification: Main-belt Asteroid          SPK-ID: 2447243
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1687553994682322 2.0933e-07  
a 2.950432945210761 3.5066e-08 au
q 2.452531454937486 6.1259e-07 au
i 2.411574366441569 1.1961e-05 deg
node 176.3076372330288 0.00016173 deg
peri 247.0166527086235 0.00029872 deg
M 295.2283001022391 0.00019721 deg
tp 2459333.550311645031
(2021-Apr-29.05031165)
0.0010135 TDB
period 1851.087934722491
5.07
3.3e-05
9.035e-08
d
yr
n .1944802260590445 3.4671e-09 deg/d
Q 3.448334435484036 4.0984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      4161 days (11.39 yr)  
   first obs. used      2005-10-01  
   last obs. used      2017-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .694  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 11:41:26  

Additional Information
 Earth MOID = 1.46698 au 
 Jupiter MOID = 1.87872 au 
 T_jup = 3.247 
[ 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 17.7   n/a MPO361037  

447243 (2005 UM208)          Discovered 2005-Oct-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

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