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69231 Alettajacobs (1972 FE)
Classification: Main-belt Asteroid          SPK-ID: 2069231
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2621219506803433 1.4925e-07  
a 2.645376553372779 3.9821e-08 AU
q 1.951965290918663 3.7294e-07 AU
i 31.64482325763825 1.5986e-05 deg
node 170.3789658955854 2.4749e-05 deg
peri 54.94075373662783 6.2756e-05 deg
M 311.2763062584955 3.4562e-05 deg
tp 2457213.199946554177
(2015-Jul-09.69994655)
0.00014996 JED
period 1571.555333340363
4.30
3.5485e-05
9.715e-08
d
yr
n .2290724305804841 5.1724e-09 deg/d
Q 3.338787815826895 5.0259e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      14815 days (40.56 yr)  
   first obs. used      1972-03-17  
   last obs. used      2012-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57726  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 12:35:15  

Additional Information
 Earth MOID = 1.05718 AU 
 T_jup = 3.139 
[ 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 15.3 mag n/a MPO240716  

69231 Alettajacobs           Discovered 1972 Mar. 16 by T. Gehrels at Palomar.
Aletta Jacobs (1854-1929) was the first Dutch woman to graduate from a university and the first Dutch female physician. She helped initiate The Hague Congress of 1915 that led to the formation of the Women's International League for Peace and Freedom. The name was suggested by L. E. Timmerman.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100130/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1972 FE = 2002 EV9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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