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(2015 DD198)
Classification: Amor [NEO]          SPK-ID: 3712468
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4090267046729601 8.1322e-08  
a 1.726856312345626 1.2243e-07 au
q 1.020525965463195 8.3904e-08 au
i 10.37815992826953 6.6006e-06 deg
node 348.4550157480937 1.9907e-05 deg
peri 223.8951213026838 3.3355e-05 deg
M 87.29403826777632 9.7783e-05 deg
tp 2458799.514459352368
(2019-Nov-12.01445935)
0.00020381 TDB
period 828.8629563819416
2.27
8.8145e-05
2.413e-07
d
yr
n .4343299422758994 4.6188e-08 deg/d
Q 2.433186659228058 1.725e-07 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      670 days (1.83 yr)  
   first obs. used      2015-02-22  
   last obs. used      2016-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .41745  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:35:26  

Additional Information
 Earth MOID = .0777204 au 
 Jupiter MOID = 2.57756 au 
 T_jup = 4.047 
[ 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 21.1   n/a MPO349336  

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