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JPL Small-Body Database Browser
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305820 (2009 DR124)
Classification: Main-belt Asteroid          SPK-ID: 2305820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2131553399374763 9.4208e-08  
a 2.401310872748844 3.1641e-08 au
q 1.889458637372506 2.4173e-07 au
i 4.700343857883484 9.4444e-06 deg
node 172.0441488526387 9.7079e-05 deg
peri 257.3397217714576 0.00010068 deg
M 342.1838610617112 3.6386e-05 deg
tp 2458667.763908292631
(2019-Jul-03.26390829)
0.00013847 TDB
period 1359.161323854885
3.72
2.6864e-05
7.355e-08
d
yr
n .2648692202180677 5.2351e-09 deg/d
Q 2.913163108125182 3.8386e-08 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      8922 days (24.43 yr)  
   first obs. used      1994-03-10  
   last obs. used      2018-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59813  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:06:33  

Additional Information
 Earth MOID = .909956 au 
 Jupiter MOID = 2.40338 au 
 T_jup = 3.490 
[ 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 17.8   n/a MPO455253  

305820 (2009 DR124)          Discovered 2009-Feb-19 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 DR124 = 2005 EW207 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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