Committee on Radio Astronomy Frequencies
The Committee on Radio Astronomy Frequencies (CRAF) is an Expert Committee of the European Science Foundation (ESF).
Some details of the Plateau de Bure radio observatory (operated by the Institut de Radioastronomie Millimétrique, IRAM):
| geographic longitude: | 05o 54' 28.5" |
| geographic latitude: | 44o 38' 02" |
| altitude above sea level: | 2550 meter |
| diameter telescope: | array with 6 elements of 15 meter diameter each |
| minimum elevation: 0o |
Available observing mode: single dish, local interferometry, Very Long Baseline Interferometry (VLBI).
Frequencies used currently:
| Frequency band | Observing mode |
| 22.81 - 22.86 GHz | single dish |
| 23.07 - 23.12 GHz | single dish |
| 23.60 - 24.00 GHz | single dish |
| 42.5 - 43.5 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 |
| 86.0 - 92.0 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 |
| 100.0 - 102.0 GHz | single dish |
| 102.0 - 105.0 GHz | single dish |
| 105.0 - 109.5 GHz | single dish |
| 109.5 - 111.8 GHz | single dish |
| 111.8 - 114.25 GHz | single dish |
| 114.25 - 116 GHz | single dish |
| 136 - 141 GHz | single dish |
| 141 - 148.5 GHz | single dish |
| 148.5 - 151.5 GHz | single dish |
| 164 - 167 GHz | single dish |
| 168 - 170 GHz | single dish |
| 170 - 174.5 GHz | single dish |
| 217 - 226 GHz | single dish |
| 226 - 231.5 GHz | single dish |
| 265 - 275 GHz | single dish |
| 275 - 1000 GHz | single dish |
Research programs: galactic research (circumstellar envelopes, interstellar medium: molecules and dust), near extra-galactic research (molecules and dust, star formation), solar system (comets), aeronomy and terrestrial atmosphere (H2O, O3, ClO), Very Long Baseline Interferometry at mm wavelengths.