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JPL Small-Body Database Browser
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392174 (2009 KM9)
Classification: Main-belt Asteroid          SPK-ID: 2392174
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05245104189408709 5.4899e-08  
a 2.973584817396102 5.4463e-08 au
q 2.817617195563238 1.7827e-07 au
i 8.777610895950222 8.7162e-06 deg
node 211.9946412495959 3.614e-05 deg
peri 99.89451054284778 9.717e-05 deg
M 266.189887190697 9.0661e-05 deg
tp 2459088.551981447762
(2020-Aug-27.05198145)
0.00047737 TDB
period 1872.918687118033
5.13
5.1456e-05
1.409e-07
d
yr
n .1922133632795092 5.2808e-09 deg/d
Q 3.129552439228966 5.732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      3713 days (10.17 yr)  
   first obs. used      2009-04-30  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:08:36  

Additional Information
 Earth MOID = 1.82058 au 
 Jupiter MOID = 2.01587 au 
 T_jup = 3.242 
[ 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 16.2   n/a MPO437605  

392174 (2009 KM9)          Discovered 2009-Apr-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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