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JPL Small-Body Database Browser
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172845 (2005 EK11)
Classification: Main-belt Asteroid          SPK-ID: 2172845
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08963875993442517 3.9318e-08  
a 2.316398358067628 1.4952e-08 au
q 2.108759281736307 9.1403e-08 au
i 5.729672173396318 4.5547e-06 deg
node 109.3192132387785 5.3414e-05 deg
peri 358.0775042692237 6.415e-05 deg
M 159.5762498455382 3.5736e-05 deg
tp 2458429.699883129655
(2018-Nov-07.19988313)
0.00012571 TDB
period 1287.710685469963
3.53
1.2468e-05
3.414e-08
d
yr
n .2795659025448052 2.7068e-09 deg/d
Q 2.524037434398949 1.6292e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      6725 days (18.41 yr)  
   first obs. used      2000-11-27  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59145  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:55:05  

Additional Information
 Earth MOID = 1.12555 au 
 Jupiter MOID = 2.55947 au 
 T_jup = 3.569 
[ 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 16.7   n/a MPO469852  

172845 (2005 EK11)          Discovered 2005-Mar-02 by CSS at Catalina
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2005 EK11 = 2001 BZ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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