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305785 (2009 DK56)
Classification: Main-belt Asteroid          SPK-ID: 2305785
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1122109771220805 7.4087e-08  
a 2.454775408271597 2.2956e-08 au
q 2.179322661094187 1.8708e-07 au
i 5.842897783624302 6.043e-06 deg
node 140.184632387739 7.914e-05 deg
peri 266.9867610185088 8.7698e-05 deg
M 131.3895257294472 3.542e-05 deg
tp 2458687.787014522599
(2019-Jul-23.28701452)
0.0001363 TDB
period 1404.805091936614
3.85
1.9705e-05
5.395e-08
d
yr
n .2562633080320892 3.5946e-09 deg/d
Q 2.730228155449007 2.5532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      5960 days (16.32 yr)  
   first obs. used      2003-08-25  
   last obs. used      2019-12-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .66799  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:56:29  

Additional Information
 Earth MOID = 1.19731 au 
 Jupiter MOID = 2.61149 au 
 T_jup = 3.478 
[ 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 17.3   n/a MPO455253  

305785 (2009 DK56)          Discovered 2009-Feb-22 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 DK56 = 2005 CU66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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