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11520 Fromm (1991 GE8)
Classification: Main-belt Asteroid          SPK-ID: 2011520
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09616070352499397 3.5021e-08  
a 2.285015654464499 8.8408e-09 au
q 2.065286941565568 7.9786e-08 au
i 5.581046992193302 4.9868e-06 deg
node 15.46943687214773 3.9385e-05 deg
peri 96.93437876556372 4.7449e-05 deg
M 237.7686578113286 2.6079e-05 deg
tp 2459428.863320475113
(2021-Aug-02.36332047)
9.1704e-05 TDB
period 1261.630549168045
3.45
7.322e-06
2.005e-08
d
yr
n .2853450245298787 1.656e-09 deg/d
Q 2.50474436736343 9.691e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1584  
   data-arc span      10884 days (29.80 yr)  
   first obs. used      1989-11-03  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48996  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:29:42  

Additional Information
 Earth MOID = 1.09052 au 
 Jupiter MOID = 2.56915 au 
 T_jup = 3.590 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO337356  

11520 Fromm           Discovered 1991 Apr. 8 by E. W. Elst at the European Southern Observatory.
Erich Fromm (1900-1980) was a German psychoanalyst who believed that mankind could develop a psychologically balanced, sane society. He is widely known for Escape from Freedom (1941), but already in 1930 he had written Das Christus Dogma, which stresses the neglect of social factors in human psychology.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1991 GE8 = 1989 VE5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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