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

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

Some details of the Effelsberg radio observatory (operated by the Max-Planck Institut für Radioastronomie in Bonn):

geographic longitude:	06o 53'00"
geographic latitude:	50o 31'32"
altitude above sea level:	369 meter
diameter telescope:	100 meter
	minimum elevation: 7o

Available observing mode: single dish, Very Long Baseline Interferometry (VLBI).

Frequencies used currently:

Frequency band	Observing mode
406.1 - 410.0 MHz	single dish
608.0 - 614.0 MHz	single dish, VLBI
1330.0 - 1400.0 MHz	single dish, VLBI
1400.0 - 1427.0 MHz	single dish, VLBI
1610.6 - 1613.8 MHz	single dish
1660.0 - 1670.0 MHz	single dish, VLBI
1718.8 - 1722.2 MHz	single dish
2655.0 - 2690.0 MHz	single dish
2690.0 - 2700.0 MHz	single dish
3260.0 - 3267.0 MHz	single dish
3332.0 - 3339.0 MHz	single dish
3345.8 - 3352.5 MHz	single dish
4800.0 - 4990.0 MHz	single dish, VLBI
4990.0 - 5000.0 MHz	single dish, VLBI
6650.0 - 6675.2 MHz	single dish
8270.99 - 8326.99 MHz	single dish, VLBI
10.6 - 10.7 GHz	single dish
14.47 - 14.50 GHz	single dish, VLBI
15.35 - 15.40 GHz	single dish, VLBI
22.01 - 22.21 GHz	single dish
22.21 - 22.50 GHz	single dish, VLBI
22.81 - 22.86 GHz	single dish
23.07 - 23.12 GHz	single dish
23.60 - 24.00 GHz	single dish
31.2 - 31.8 GHz	single dish
36.43 - 36.5 GHz	single dish
42.5 - 43.5 GHz	single dish, VLBI
47.2 - 50.2 GHz	single dish
76.0 - 77.5 GHz	single dish
77.5 - 78 GHz	single dish
78 - 79 GHz	single dish
79 - 81 GHz	single dish
81 - 84 GHz	single dish
84 - 86 GHz	single dish
86 - 92 GHz	single dish
92.0 - 94.0 GHz	single dish
94.0 - 94.1 GHz	single dish
94.1 - 95.0 GHz	single dish
95.0 - 100.0 GHz	single dish

Research programs: galactic and extra-galactic radio astronomy, pulsar research, Very Long Baseline Interferometry, interstellar molecules.