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22474 Frobenius (1997 ED8)
Classification: Main-belt Asteroid          SPK-ID: 2022474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613631589367112 3.8817e-08  
a 2.588742141937828 1.18e-08 au
q 2.171014532242152 1.01e-07 au
i 3.573290267592429 4.8319e-06 deg
node 5.856160026958556 5.6623e-05 deg
peri 157.7625677819406 5.8475e-05 deg
M 259.1479150025346 1.6999e-05 deg
tp 2459626.700542016732
(2022-Feb-16.20054202)
7.3477e-05 TDB
period 1521.358682171813
4.17
1.0402e-05
2.848e-08
d
yr
n .2366305883147047 1.6179e-09 deg/d
Q 3.006469751633503 1.3704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      669  
   data-arc span      10131 days (27.74 yr)  
   first obs. used      1993-04-16  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55921  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:06:47  

Additional Information
 Earth MOID = 1.17889 au 
 Jupiter MOID = 1.96823 au 
 T_jup = 3.399 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.65   n/a E2021B10  

22474 Frobenius           Discovered 1997 Mar. 8 by P. G. Comba at Prescott.
Georg Ferdinand Frobenius (1849-1917), a professor at the University of Berlin, made major contributions to the theory of abstract groups. The abstract group unifies the concepts of permutation, transformation and composition.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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