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441790 (2009 EQ12)
Classification: Main-belt Asteroid          SPK-ID: 2441790
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2466588373559459 8.9844e-08  
a 2.555377861474465 3.8212e-08 au
q 1.92507132915805 2.3963e-07 au
i 7.818946129447414 8.2498e-06 deg
node 67.81142212443955 6.0961e-05 deg
peri 3.919025025460573 6.3172e-05 deg
M 323.8947693840531 1.9021e-05 deg
tp 2459150.140358975621
(2020-Oct-27.64035898)
7.9798e-05 TDB
period 1492.042241863704
4.08
3.3467e-05
9.163e-08
d
yr
n .2412800320923391 5.412e-09 deg/d
Q 3.18568439379088 4.7638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      5285 days (14.47 yr)  
   first obs. used      2005-03-09  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55904  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:26  

Additional Information
 Earth MOID = .939761 au 
 Jupiter MOID = 2.12169 au 
 T_jup = 3.382 
[ 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 16.6   n/a MPO450444  

441790 (2009 EQ12)          Discovered 2008-Nov-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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