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JPL Small-Body Database Browser
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305800 (2009 DW89)
Classification: Main-belt Asteroid          SPK-ID: 2305800
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08887001568849492 8.1697e-08  
a 2.566309091829168 2.6608e-08 au
q 2.338241162576782 2.1127e-07 au
i 12.67430431144667 8.438e-06 deg
node 313.0506125499279 2.9165e-05 deg
peri 356.9519237861346 5.3623e-05 deg
M 94.03139990230852 4.2757e-05 deg
tp 2458608.277709364150
(2019-May-04.77770936)
0.00018088 TDB
period 1501.626316056147
4.11
2.3353e-05
6.394e-08
d
yr
n .2397400712485512 3.7285e-09 deg/d
Q 2.794377021081553 2.8972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6797 days (18.61 yr)  
   first obs. used      2001-02-20  
   last obs. used      2019-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62573  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:01  

Additional Information
 Earth MOID = 1.32396 au 
 Jupiter MOID = 2.4649 au 
 T_jup = 3.392 
[ 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 16.6   n/a MPO494623  

305800 (2009 DW89)          Discovered 2009-Feb-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 DW89 = 2005 EA289 = 2009 BZ169 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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