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7377 Pizzarello (1981 EW9)
Classification: Main-belt Asteroid          SPK-ID: 2007377
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1711510982348168 4.9494e-08  
a 2.221677216911238 9.0051e-09 au
q 1.841434721313608 1.0983e-07 au
i 4.67862773104161 5.7552e-06 deg
node 320.6585004209669 6.828e-05 deg
peri 337.3488725937962 7.1126e-05 deg
M 141.1761399537662 2.2645e-05 deg
tp 2457126.172099139903
(2015-Apr-13.67209914)
7.5476e-05 JED
period 1209.53897992647
3.31
7.3539e-06
2.013e-08
d
yr
n .2976340622126002 1.8096e-09 deg/d
Q 2.601919712508868 1.0546e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      14818 days (40.57 yr)  
   first obs. used      1975-07-11  
   last obs. used      2016-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54657  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:24:07  

Additional Information
 Earth MOID = .826442 au 
 Jupiter MOID = 2.59778 au 
 T_jup = 3.625 
[ 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 15.5 mag n/a MPO347584  

7377 Pizzarello           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Sandra Pizzarello (b. 1933) is a professor of chemistry at Arizona State University. Along with colleagues, she has pioneered the study of organic material in meteorites.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

[ show close-approach data ]
Alternate Designations
 1981 EW9 = 1975 ND1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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