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312514 (2009 DB9)
Classification: Main-belt Asteroid          SPK-ID: 2312514
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379684145529144 6.6505e-08  
a 2.28801950071037 2.3791e-08 au
q 1.972345077731209 1.5649e-07 au
i 3.971150375207118 7.2908e-06 deg
node 311.0914935111491 0.00011164 deg
peri 308.1219198399028 0.00011704 deg
M 14.57045845133662 3.7676e-05 deg
tp 2458949.336679157922
(2020-Apr-09.83667916)
0.00013202 TDB
period 1264.119146605058
3.46
1.9717e-05
5.398e-08
d
yr
n .2847832824673391 4.4418e-09 deg/d
Q 2.603693923689531 2.7073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      6167 days (16.88 yr)  
   first obs. used      2002-03-09  
   last obs. used      2019-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60661  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:19:20  

Additional Information
 Earth MOID = .959992 au 
 Jupiter MOID = 2.46326 au 
 T_jup = 3.585 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO434004  

312514 (2009 DB9)          Discovered 2009-Feb-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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