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305811 (2009 DH105)
Classification: Main-belt Asteroid          SPK-ID: 2305811
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278996050188874 9.4424e-08  
a 2.743517680970771 2.4565e-08 au
q 2.392622853212275 2.5354e-07 au
i 2.860891778630818 9.3646e-06 deg
node 340.0316109436661 0.00012484 deg
peri 202.587857180966 0.00012743 deg
M 208.6096543198936 2.7144e-05 deg
tp 2459898.500529142429
(2022-Nov-15.00052914)
0.00012923 TDB
period 1659.816478801357
4.54
2.2292e-05
6.103e-08
d
yr
n .2168914483003418 2.913e-09 deg/d
Q 3.094412508729267 2.7707e-08 au
  Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      9412 days (25.77 yr)  
   first obs. used      1995-01-29  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:08:58  

Additional Information
 Earth MOID = 1.39498 au 
 Jupiter MOID = 1.86959 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457597.5 (2016-Jul-28.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1263240063420902 9.4888e-08  
q 2.39869043497254 2.5457e-07 au
tp 2458239.846929076219
(2018-May-01.34692908)
0.00012189 TDB
node 340.1710695878442 0.00012486 deg
peri 202.8490027012676 0.0001275 deg
i 2.859808869955637 9.3623e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      9412 days (25.77 yr)  
   first obs. used      1995-01-29  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:08:58  

Additional Information
 Jupiter MOID = 1.86959 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.003682093878304E-15 -2.407624417024954E-14 -1.844249445391791E-12 -4.338684122633528E-14 -1.976003442862116E-13 2.407348383981246E-15
q -2.407624417024954E-14 6.480380543348857E-14 5.826359614717739E-12 1.179207229955591E-13 6.748386392498767E-13 -5.583552856890991E-15
tp -1.844249445391791E-12 5.826359614717739E-12 1.485762464308589E-8 1.503378887818382E-11 3.157009697307158E-9 2.88761345183404E-12
node -4.338684122633528E-14 1.179207229955591E-13 1.503378887818382E-11 1.558905239017205E-8 -1.556608518537151E-8 1.481827880757181E-10
peri -1.976003442862116E-13 6.748386392498767E-13 3.157009697307158E-9 -1.556608518537151E-8 1.625499400572535E-8 -1.473467948660892E-10
i 2.407348383981246E-15 -5.583552856890991E-15 2.88761345183404E-12 1.481827880757181E-10 -1.473467948660892E-10 8.765254775498006E-11

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 16.8   n/a MPO397067  

305811 (2009 DH105)          Discovered 2009-Feb-26 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 DH105 = 2004 BU63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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