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227905 (2007 EN171)
Classification: Main-belt Asteroid          SPK-ID: 2227905
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04886013975393935 4.4148e-08  
a 2.678506298003224 2.2372e-08 au
q 2.54763410595098 1.1509e-07 au
i 11.72333037138997 6.6763e-06 deg
node 25.29676287337521 2.2308e-05 deg
peri 58.89911633045973 8.3044e-05 deg
M 165.8853648366492 8.1534e-05 deg
tp 2458462.692600983030
(2018-Dec-10.19260098)
0.00035812 TDB
period 1601.169964014979
4.38
2.0061e-05
5.492e-08
d
yr
n .2248355940285626 2.8169e-09 deg/d
Q 2.809378490055468 2.3466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      8068 days (22.09 yr)  
   first obs. used      1998-04-24  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57263  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:36  

Additional Information
 Earth MOID = 1.58074 au 
 Jupiter MOID = 2.31159 au 
 T_jup = 3.346 
[ 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 15.99   n/a E2021B55  

227905 (2007 EN171)          Discovered 2007-Mar-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2007 EN171 = 2002 CZ65 = 2006 AG5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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