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227894 (2007 EX91)
Classification: Main-belt Asteroid          SPK-ID: 2227894
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433052044754611 5.5022e-08  
a 2.331898865668859 1.4971e-08 au
q 1.997725621908087 1.256e-07 au
i 5.760848359045801 6.3624e-06 deg
node 318.299945002111 6.3407e-05 deg
peri 83.69355424671775 6.7707e-05 deg
M 52.46409768355242 2.2727e-05 deg
tp 2459010.950474847466
(2020-Jun-10.45047485)
8.1788e-05 TDB
period 1300.657631939124
3.56
1.2525e-05
3.429e-08
d
yr
n .2767830604763248 2.6654e-09 deg/d
Q 2.66607210942963 1.7116e-08 au
  Orbit Determination Parameters
   # obs. used (total)      296  
   data-arc span      7563 days (20.71 yr)  
   first obs. used      2000-05-05  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53655  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 13:12:26  

Additional Information
 Earth MOID = 1.01475 au 
 Jupiter MOID = 2.73492 au 
 T_jup = 3.550 
[ 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 16.9   n/a MPO338632  

227894 (2007 EX91)          Discovered 2007-Mar-10 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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