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11577 Einasto (1994 CO17)
Classification: Main-belt Asteroid          SPK-ID: 2011577
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1456650660885168 5.0718e-08  
a 2.451346464542853 1.4657e-08 au
q 2.094270919779366 1.234e-07 au
i 4.025529476029761 6.1235e-06 deg
node 75.63122731405808 5.9825e-05 deg
peri 206.4162859348147 6.3008e-05 deg
M 194.8149244543079 2.2071e-05 deg
tp 2458243.741088565921
(2018-May-05.24108857)
8.8913e-05 JED
period 1401.862675055518
3.84
1.2573e-05
3.442e-08
d
yr
n .2568011877381234 2.3032e-09 deg/d
Q 2.808422009306339 1.6792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1381  
   data-arc span      14963 days (40.97 yr)  
   first obs. used      1975-04-15  
   last obs. used      2016-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53481  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:12:12  

Additional Information
 Earth MOID = 1.07851 au 
 Jupiter MOID = 2.31414 au 
 T_jup = 3.477 
[ 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 13.8 mag n/a MPO358743  

11577 Einasto           Discovered 1994 Feb. 8 by E. W. Elst at the European Southern Observatory.
Estonian astronomer Jaan Einasto (b. 1929) discovered the presence of dark matter in the universe in 1974, and he noted the regular cell-like structure in the large scale-distribution of superclusters of galaxies in 1977. Still a very active scientist, he has written more than 250 scientific papers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 1994 CO17 = 1975 GE = 1979 HD4 = 1995 QU2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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