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442186 (2011 EP45)
Classification: Main-belt Asteroid          SPK-ID: 2442186
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298724629153517 7.5892e-08  
a 2.20297514162946 1.2743e-08 au
q 1.916869334244746 1.6368e-07 au
i 8.007811868647737 6.2135e-06 deg
node 161.1030171502223 5.0308e-05 deg
peri 68.33648127170443 6.2018e-05 deg
M 14.27381318017711 2.893e-05 deg
tp 2459349.146691344436
(2021-May-14.64669134)
9.6159e-05 TDB
period 1194.298321045525
3.27
1.0362e-05
2.837e-08
d
yr
n .3014322248103347 2.6154e-09 deg/d
Q 2.489080949014173 1.4398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      4787 days (13.11 yr)  
   first obs. used      2008-04-30  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:09:51  

Additional Information
 Earth MOID = .925229 au 
 Jupiter MOID = 2.51081 au 
 T_jup = 3.640 
[ 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 18.1   n/a MPO535249  

442186 (2011 EP45)          Discovered 2008-Apr-30 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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