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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .252023282182544 6.2997e-08  
a 2.757203623346854 2.5359e-08 AU
q 2.062324116545377 1.7347e-07 AU
i 2.64197876727546 5.0773e-06 deg
node 137.4912402350848 0.00014381 deg
peri 235.5499997931876 0.00014425 deg
M 285.2562615692503 1.4982e-05 deg
tp 2457347.695432269100
(2015-Nov-21.19543227)
7.3448e-05 JED
period 1672.251860036145
4.58
2.307e-05
6.316e-08
d
yr
n .2152785765131209 2.9699e-09 deg/d
Q 3.452083130148331 3.175e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      13140 days (35.98 yr)  
   first obs. used      1978-07-07  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57185  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:11:58  

Additional Information
 Earth MOID = 1.06413 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 13.9 mag n/a MPO302115  

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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