The Committee on Radio Astronomy Frequencies (CRAF) is a committee of the European Science Foundation (ESF).

Some details of the Ondrejov radio observatory:

geographic longitude:	14o47'01"
geographic latitude:	49o54'38"
altitude above sea level:	533 meter
diameter telescopes 1 and 2:	3 meter
	minimum elevation: 0o
diameter telescope 3:	7.5 meter
	minimum elevation: 0o
diameter telescope 4:	10 meter
	minimum elevation: 0o

Available observing mode: single dish

Frequencies used currently: many frequencies between 0.8 and 4.5 GHz.

Research programs: solar research.