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Effelsberg, FEDERAL REPUBLIC OF GERMANY 



RADIOSTERNWARTE EFFELSBERG (EFFELSBERG TELESCOPE) 

 Max Planck Institute fur Radioastronomle 

 Max Planck Gesellschaft 



"Big Science" Descriptor : Radio astronomy 



Description of Facility/Instrument : This is a 100-meter, fully steer- 

 able, parabolic reflector. It Is usable to a minimum wavelength 

 of seven millimeters. It is used primarily in the wavelength 

 range of 21 centimeters to 7 millimeters. It is the largest 

 single antenna, fully steerable radio telescope in the world. 



Date of Construction : 1973 



Construction Cost ; 1984 $$ : About $23 million 



Present International Cooperation 



Nationality(s) of Ownership : Federal Republic of Germany 

 Nationality(s) of Operational Funding : Federal Republic of Germany 

 Natlonality(s) of Management Staff : Federal Republic of Germany 

 Nationality(s) of Researchers : Federal Republic of Germany 



Pote ntial for Future International Cooperation ; Observing time is 



awarded on the basis of scientific merit and appropriateness for 

 this instrument. Proposals for time from scientists outside the 

 Institute are evaluated and time allocated on a case-by-case 

 basis . 



Other Information : In principle, this facility is for the sole use of 

 Institute staff scientists. In practice, between 25 and 50 per- 

 cent of the telescope time has gone to scientists outside of the 

 Institute. 



