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210425 Imogene (2008 AM31)
Classification: Main-belt Asteroid          SPK-ID: 2210425
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09333331733171764 1.013e-07  
a 3.07152833458449 6.9382e-08 AU
q 2.784852405839353 3.0951e-07 AU
i 8.512880708186492 1.1375e-05 deg
node 138.0919760994626 6.4522e-05 deg
peri 310.0045553678797 0.00010566 deg
M 122.4522042081534 7.5961e-05 deg
tp 2456331.702990996084
(2013-Feb-08.20299100)
0.00041519 JED
period 1966.211427538995
5.38
6.6622e-05
1.824e-07
d
yr
n .1830932294247691 6.2038e-09 deg/d
Q 3.358204263329626 7.5858e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      4126 days (11.30 yr)  
   first obs. used      2002-12-07  
   last obs. used      2014-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .67582  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 20:17:15  

Additional Information
 Earth MOID = 1.81045 AU 
 T_jup = 3.207 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8 mag n/a MPO260352  

210425 Imogene           Discovered 2008 Jan. 10 by the Prairie School at Calvin-Rehoboth Observatory.
Located in Racine, Wisconsin, the Prairie School, where the discoverers C. Leipold, T. Pastika and K. Simpson are students, was cofounded in 1965 by Imogene Powers Johnson (b. 1930), an avid naturalist and amateur astronomer dedicated to introducing young minds to the wonders of the universe.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2008 AM31 = 2003 ER19 = 2005 NT26 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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