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(2015 DD54)
Classification: Apollo [NEO]          SPK-ID: 3711171
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4928461948629689 2.9883e-05  
a 1.958201550575455 0.00011544 au
q .9931093675995762 3.8706e-08 au
i .9501653739060751 4.1641e-05 deg
node 349.3237020269872 0.00019641 deg
peri 178.9483035601055 5.934e-05 deg
M 328.0625219233038 0.060922 deg
tp 2459089.293797605354
(2020-Aug-27.79379761)
0.17723 TDB
period 1000.885763777694
2.74
0.08851
0.0002423
d
yr
n .3596814072379586 3.1807e-05 deg/d
Q 2.923293733551334 0.00017234 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      69 days  
   first obs. used      2015-01-20  
   last obs. used      2015-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .42865  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-10 06:25:29  

Additional Information
 Earth MOID = 9.58802E-5 au 
 Jupiter MOID = 2.05188 au 
 T_jup = 3.725 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.4   n/a MPO335365  

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