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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709378129115679 5.8838e-08  
a 2.221760215082206 1.4957e-08 AU
q 1.841977383102119 1.3382e-07 AU
i 4.678778574332061 7.0239e-06 deg
node 320.6658809824545 8.0078e-05 deg
peri 337.4523125707992 8.3539e-05 deg
M 263.0000597664348 2.8871e-05 deg
tp 2457126.421620657916
(2015-Apr-13.92162066)
9.8429e-05 JED
period 1209.606760110654
3.31
1.2215e-05
3.344e-08
d
yr
n .2976173843200641 3.0054e-09 deg/d
Q 2.601543047062293 1.7514e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      14147 days (38.73 yr)  
   first obs. used      1975-07-11  
   last obs. used      2014-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57712  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:52:26  

Additional Information
 Earth MOID = .826552 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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