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305777 (2009 DO47)
Classification: Main-belt Asteroid          SPK-ID: 2305777
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129080654362928 4.8955e-08  
a 2.354513952278565 1.7954e-08 au
q 1.853218941656176 1.1491e-07 au
i 9.447862731512378 6.8767e-06 deg
node 343.6172003520285 3.115e-05 deg
peri 96.82948403198868 3.4683e-05 deg
M 205.8815102742396 1.7599e-05 deg
tp 2459961.440321935818
(2023-Jan-16.94032194)
6.8393e-05 TDB
period 1319.624376405374
3.61
1.5094e-05
4.133e-08
d
yr
n .2728049029987091 3.1204e-09 deg/d
Q 2.855808962900954 2.1777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      8536 days (23.37 yr)  
   first obs. used      1998-01-24  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60361  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:07:22  

Additional Information
 Earth MOID = .896611 au 
 Jupiter MOID = 2.4475 au 
 T_jup = 3.507 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457767.5 (2017-Jan-14.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2127616800958287 4.9131e-08  
q 1.853928403268855 1.155e-07 au
tp 2457323.353011325392
(2015-Oct-27.85301133)
5.5027e-05 TDB
node 343.6520512471557 3.1146e-05 deg
peri 97.03017563751884 3.4673e-05 deg
i 9.44811376065525 6.8759e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      8536 days (23.37 yr)  
   first obs. used      1998-01-24  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60361  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:07:22  

Additional Information
 Jupiter MOID = 2.4475 au 
 T_jup = 3.507 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.413869022417652E-15 -5.63201769335765E-15 1.249805168786513E-12 8.034674144561701E-15 3.147383153510281E-13 -8.846049044249088E-15
q -5.63201769335765E-15 1.334068107605137E-14 -2.784644327708197E-12 -1.832850344383499E-14 -6.846521194830609E-13 2.094518057330885E-14
tp 1.249805168786513E-12 -2.784644327708197E-12 3.028016178208766E-9 2.126817274059048E-11 8.582132601864926E-10 -1.247203574627831E-11
node 8.034674144561701E-15 -1.832850344383499E-14 2.126817274059048E-11 9.701013948506049E-10 -9.500400732174212E-10 -8.136411327596634E-11
peri 3.147383153510281E-13 -6.846521194830609E-13 8.582132601864926E-10 -9.500400732174212E-10 1.202216958789797E-9 7.679762623254161E-11
i -8.846049044249088E-15 2.094518057330885E-14 -1.247203574627831E-11 -8.136411327596634E-11 7.679762623254161E-11 4.727778770884794E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.36   n/a E2021B25  

305777 (2009 DO47)          Discovered 2009-Jan-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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