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312355 (2008 DD23)
Classification: Main-belt Asteroid          SPK-ID: 2312355
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2011822248463447 5.8831e-08  
a 2.646802863874449 2.5694e-08 au
q 2.114313174990511 1.6037e-07 au
i 12.36430293582363 4.9263e-06 deg
node 305.4905655157016 3.0962e-05 deg
peri 210.8615378658944 3.6017e-05 deg
M 313.7592795007515 2.2792e-05 deg
tp 2459202.523975169876
(2020-Dec-19.02397517)
0.00010175 TDB
period 1572.826510398713
4.31
2.2903e-05
6.27e-08
d
yr
n .228887291522534 3.3329e-09 deg/d
Q 3.179292552758388 3.0863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      6253 days (17.12 yr)  
   first obs. used      2002-12-12  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56882  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:45:41  

Additional Information
 Earth MOID = 1.13481 au 
 Jupiter MOID = 1.88954 au 
 T_jup = 3.331 
[ 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 16.3   n/a MPO413277  

312355 (2008 DD23)          Discovered 2008-Feb-29 by Tozzi, F. at Grove Creek
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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