Medicina Radio Astronomical Station manage by the Italian National Institute for Astrophysics currently hosts two radio telescopes (with plans underway for the installation of a LOFAR 2.0 station):
- The 32-m dish, built in 1983, is employed for both interferometric and single-dish observations. In the former case, it works with other antennas, located in different European or worldwide countries taking part in the EVN (European Very Long Baseline Interferometry Network) consortium.
- The Northern Cross, completed in 1967 is conceived in order to receive radio waves with a central frequency of 408 MHz (73.5 cm in wavelength) with a 2.5-MHz bandwidth.
geographic longitude: | 11° 38′ 49″ |
geographic latitude: | 44° 31′ 15″ |
altitude above sea level: | 28 m |
diameter telescope: | 32 m |
minimum elevation: | 5° |
diameter telescope (Northern Cross): | 564 (EW) x 35 (NS) meter |
minimum elevation: | 15° |
Note: | The Northern Cross is a transit instrument and only has an azimuth range of +/-3° |
Available observing mode: single dish, local interferometry, Very Long Baseline Interferometry (VLBI).
Frequencies currently used:
Frequency band | Observing mode |
10-90 MHz | planned (LOFAR 2.0) |
110-240 MHz | planned (LOFAR 2.0) |
400 – 416 MHz | single dish |
1350 – 1450 MHz | single dish, VLBI |
1595 – 1715 MHz | single dish, VLBI |
2200 – 2360 MHz | single dish |
4300 – 5800 MHz | single dish, VLBI |
5900 – 7100 MHz | single dish, VLBI |
8180 – 8980 MHz | single dish, VLBI |
13.5 – 18 GHz | planned |
18 – 26.5 GHz | single dish, VLBI |
18 – 26 GHz | single dish, VLBI |
34 – 50 GHz | single dish, VLBI |
80 – 116 GHz | single dish, VLBI |
Research programs:
VLBI: astronomy and geodesy, pulsar research and pulsar searches, at 22 GHz observations of H2O masers, molecular spectroscopy, receiver development.
Single-dish: spectrometry of water and methanol maser sources, sky surveys, flux variability of compact extragalactic sources, polarimetric observations of Galactic regions, planetary studies.