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400231 (2007 EZ172)
Classification: Main-belt Asteroid          SPK-ID: 2400231
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 .1019827862712666 5.1452e-08  
a 2.248772505372298 1.5877e-08 au
q 2.019436419584215 1.1843e-07 au
i 1.298099994122499 6.1671e-06 deg
node 220.2790119957854 0.00025043 deg
peri 43.07244827421949 0.00025279 deg
M 264.509366693712 3.5047e-05 deg
tp 2459327.219445882857
(2021-Apr-22.71944588)
0.00012168 TDB
period 1231.733379969985
3.37
1.3045e-05
3.572e-08
d
yr
n .2922710432746189 3.0954e-09 deg/d
Q 2.478108591160382 1.7497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      7767 days (21.26 yr)  
   first obs. used      1998-10-28  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 05:41:21  

Additional Information
 Earth MOID = 1.004 au 
 Jupiter MOID = 2.56759 au 
 T_jup = 3.621 
[ 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 18.0   n/a MPO455832  

400231 (2007 EZ172)          Discovered 2005-Nov-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-07-14

Alternate Designations
 2007 EZ172 = 2005 WD50 = 2014 KZ79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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