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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1710135416976237 5.4571e-08  
a 2.22191045573063 1.5513e-08 AU
q 1.841933679361154 1.2487e-07 AU
i 4.678734221038515 6.2707e-06 deg
node 320.6646792823796 7.3945e-05 deg
peri 337.4399526309029 7.6998e-05 deg
M 322.5413199015771 2.7258e-05 deg
tp 2457126.374635361930
(2015-Apr-13.87463536)
9.2304e-05 JED
period 1209.729456863659
3.31
1.2669e-05
3.469e-08
d
yr
n .2975871984909213 3.1166e-09 deg/d
Q 2.601887232100107 1.8166e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      622  
   data-arc span      14177 days (38.81 yr)  
   first obs. used      1975-07-11  
   last obs. used      2014-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56254  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:09:44  

Additional Information
 Earth MOID = .828439 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 15.4 mag n/a MPO253415  

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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