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JPL Small-Body Database Browser
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305794 (2009 DW81)
Classification: Main-belt Asteroid          SPK-ID: 2305794
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09586545766620121 5.8403e-08  
a 3.002649467030793 5.3363e-08 au
q 2.71479910166271 1.9188e-07 au
i 3.026866580407799 6.3837e-06 deg
node 91.87672533019172 0.00032085 deg
peri 178.748062939786 0.00035135 deg
M 261.692719506845 0.00014503 deg
tp 2459119.465587674924
(2020-Sep-26.96558768)
0.00077259 TDB
period 1900.445324351956
5.20
5.0662e-05
1.387e-07
d
yr
n .1894292855400923 5.0498e-09 deg/d
Q 3.290499832398875 5.8479e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      5445 days (14.91 yr)  
   first obs. used      2004-04-12  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60373  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:02:15  

Additional Information
 Earth MOID = 1.69815 au 
 Jupiter MOID = 1.78611 au 
 T_jup = 3.243 
[ 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 16.3   n/a MPO297582  

305794 (2009 DW81)          Discovered 2009-Feb-24 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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