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305844 (2009 EQ1)
Classification: Main-belt Asteroid          SPK-ID: 2305844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588478384909368 5.9869e-08  
a 2.463842041002491 1.9004e-08 au
q 2.072466058406147 1.4558e-07 au
i 9.691044300797349 8.2015e-06 deg
node 143.0628586475796 4.1734e-05 deg
peri 257.1969235586732 5.0499e-05 deg
M 92.97488230550086 3.0316e-05 deg
tp 2458635.678138103538
(2019-Jun-01.17813810)
0.00011749 TDB
period 1412.595176524958
3.87
1.6343e-05
4.474e-08
d
yr
n .2548500844280205 2.9485e-09 deg/d
Q 2.855218023598835 2.2022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      8957 days (24.52 yr)  
   first obs. used      1995-07-27  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61262  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:58:05  

Additional Information
 Earth MOID = 1.10488 au 
 Jupiter MOID = 2.61119 au 
 T_jup = 3.451 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO455253  

305844 (2009 EQ1)          Discovered 2009-Mar-02 by Calvin College at Calvin-Rehoboth
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 EQ1 = 2003 UA148 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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