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

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1448196270161163 3.5635e-08  
a 2.452108142474887 8.7257e-09 au
q 2.096994755878492 8.5956e-08 au
i 4.026134466399999 3.9268e-06 deg
node 75.605927578208 5.046e-05 deg
peri 206.3017798290394 5.1898e-05 deg
M 91.62040296725289 1.2826e-05 deg
tp 2458243.558082090896
(2018-May-05.05808209)
4.9612e-05 TDB
period 1402.516102152548
3.84
7.4861e-06
2.05e-08
d
yr
n .2566815450086317 1.3701e-09 deg/d
Q 2.807221529071282 9.9893e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2902  
   data-arc span      16304 days (44.64 yr)  
   first obs. used      1975-04-15  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42489  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:17:14  

Additional Information
 Earth MOID = 1.08088 au 
 Jupiter MOID = 2.3199 au 
 T_jup = 3.477 
[ 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 13.8   n/a MPO412267  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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