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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2517786290462567 5.9917e-08  
a 2.756656198350098 1.3819e-08 au
q 2.062589079977644 1.6902e-07 au
i 2.642070458017817 4.8155e-06 deg
node 137.4904713332173 0.0001204 deg
peri 235.4965957301255 0.00012079 deg
M 54.46785093265581 8.1972e-06 deg
tp 2457347.564332833141
(2015-Nov-21.06433283)
3.7386e-05 JED
period 1671.753862524374
4.58
1.2571e-05
3.442e-08
d
yr
n .2153427056877825 1.6193e-09 deg/d
Q 3.450723316722551 1.7299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1177  
   data-arc span      13732 days (37.60 yr)  
   first obs. used      1978-07-07  
   last obs. used      2016-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5515  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 15:58:46  

Additional Information
 Earth MOID = 1.06318 au 
 Jupiter MOID = 2.0069 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 14.0 mag n/a MPO350867  

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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