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305815 (2009 DT109)
Classification: Main-belt Asteroid          SPK-ID: 2305815
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1778985954321316 6.8477e-08  
a 2.432236077814173 2.1706e-08 au
q 1.999544695811675 1.5992e-07 au
i 2.958871541575356 6.6623e-06 deg
node 253.0877264019587 9.4631e-05 deg
peri 322.0930221102008 9.5695e-05 deg
M 359.4594282408542 1.4109e-05 deg
tp 2459202.580452806692
(2020-Dec-19.08045281)		 5.4309e-05 TDB
period 1385.501550418657
3.79		 1.8547e-05
5.078e-08		 d
yr
n .2598337041854762 3.4783e-09 deg/d
Q 2.864927459816671 2.5568e-08 au
   Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      9911 days (27.13 yr)  
   first obs. used      1992-11-25  
   last obs. used      2020-01-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58749  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:56:35  

Additional Information
 Earth MOID = .992671 au 
 Jupiter MOID = 2.11206 au 
 T_jup = 3.483 
[ 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 16.9   n/a MPO418595  

305815 (2009 DT109)          Discovered 2009-Feb-19 by CSS at Catalina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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