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227721 (2006 DU208)
Classification: Main-belt Asteroid          SPK-ID: 2227721
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1148402161847278 4.9887e-08  
a 3.116940501095793 2.9766e-08 au
q 2.758990380115018 1.6805e-07 au
i 15.19060430018729 6.8441e-06 deg
node 195.038249382127 1.6518e-05 deg
peri 315.766794937328 3.3076e-05 deg
M 284.1631564871503 2.8338e-05 deg
tp 2459623.917635719697
(2022-Feb-13.41763572)		 0.00015905 TDB
period 2009.97749640336
5.50		 2.8792e-05
7.883e-08		 d
yr
n .1791064828557442 2.5656e-09 deg/d
Q 3.474890622076567 3.3184e-08 au
   Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      7647 days (20.94 yr)  
   first obs. used      2000-02-08  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 13:12:00  

Additional Information
 Earth MOID = 1.78818 au 
 Jupiter MOID = 1.58179 au 
 T_jup = 3.153 
[ 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 15.0   n/a MPO494249  
diameter diameter 5.383 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227721 (2006 DU208)          Discovered 2006-Feb-25 by Mt. Lemmon Survey at Mount Lemmon
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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