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8070 DeMeo (1981 EM30)
Classification: Main-belt Asteroid          SPK-ID: 2008070
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2521310038597199 8.1644e-08  
a 2.756828664299483 2.9545e-08 AU
q 2.061746685700403 2.1866e-07 AU
i 2.64190288493826 6.4014e-06 deg
node 137.4947544439229 0.00015476 deg
peri 235.5756760911419 0.00015533 deg
M 242.1732629385004 1.5062e-05 deg
tp 2457347.710523479699
(2015-Nov-21.21052348)
7.6668e-05 JED
period 1671.910751036668
4.58
2.6876e-05
7.358e-08
d
yr
n .2153224983910069 3.4614e-09 deg/d
Q 3.451910642898563 3.6994e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      12774 days (34.97 yr)  
   first obs. used      1978-07-07  
   last obs. used      2013-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60626  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 15:52:13  

Additional Information
 Earth MOID = 1.06222 AU 
 T_jup = 3.295 
[ 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 13.8 mag n/a MPO266001  

8070 DeMeo           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Named in honor of Francesca E. DeMeo (b. 1984), a postdoctoral researcher at MIT who completed her 2010 Ph.D. thesis at the Paris Observatory. An expert in spectral studies of small bodies, she extended to near-infrared wavelengths a taxonomic classification system for minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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