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312596 (2009 KD9)
Classification: Main-belt Asteroid          SPK-ID: 2312596
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1199967924350351 6.3217e-08  
a 2.66108208750193 4.1152e-08 au
q 2.341760772595371 1.7704e-07 au
i 12.50999223006813 6.8171e-06 deg
node 238.1114685650667 3.0532e-05 deg
peri 357.7038389937521 4.7637e-05 deg
M 197.0985696599946 4.5181e-05 deg
tp 2459717.977409031283
(2022-May-18.47740903)
0.00020976 TDB
period 1585.571512246141
4.34
3.678e-05
1.007e-07
d
yr
n .2270474697732298 5.2667e-09 deg/d
Q 2.980403402408489 4.609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      6561 days (17.96 yr)  
   first obs. used      2001-11-18  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58663  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:49  

Additional Information
 Earth MOID = 1.33013 au 
 Jupiter MOID = 2.03134 au 
 T_jup = 3.342 
[ 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 16.1   n/a MPO503319  

312596 (2009 KD9)          Discovered 2009-May-24 by CSS at Catalina
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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