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215113 (1998 DD2)
Classification: Main-belt Asteroid          SPK-ID: 2215113
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3199252014837206 7.777e-08  
a 3.05298337280302 2.8394e-08 au
q 2.076257052132565 2.3935e-07 au
i 8.351578010076629 1.0947e-05 deg
node 347.4314035423749 5.5663e-05 deg
peri 109.1879581477837 5.8742e-05 deg
M 87.795449701865 1.5993e-05 deg
tp 2458525.323896041370
(2019-Feb-10.82389604)
8.3296e-05 TDB
period 1948.431245651139
5.33
2.7182e-05
7.442e-08
d
yr
n .1847640253170406 2.5776e-09 deg/d
Q 4.029709693473476 3.7478e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      8632 days (23.63 yr)  
   first obs. used      1996-09-08  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:15:11  

Additional Information
 Earth MOID = 1.11048 au 
 Jupiter MOID = 1.29842 au 
 T_jup = 3.140 
[ 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 16.7   n/a MPO470310  

215113 (1998 DD2)          Discovered 1998-Feb-21 by Galad, A., Pravda, A. at Modra
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1998 DD2 = 1996 RU19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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