Parabolic Dish

Call for Proposals


The Istituto Nazionale di Astrofisica (INAF) invites scientists to participate in the call for proposals of observing time at the three national radio telescopes:

- the 32-m Medicina antenna
- the 32-m Noto antenna 
- the 64-m Sardinia Radio Telescope

Two observing semesters are scheduled every year: 1st January to 30th June, 1st July to 31st December.
Deadlines fall in early October and early April, respectively.
Notice: due to organizational reasons, the semester 2019B will exceptionally cover the period from 1st June to 31st December.

Below we report the time INAF plans to award for the next semester 2019B:

These amounts might be subject to modification, due to maintenance needs and to the variability of the commitments resulting from international agreements.

Time Allocation Committee

Proposals will be reviewed and ranked on the basis of their scientific merit by a Time Allocation Committee (TAC) of experts.

How to apply

Here is a list of useful indications and resources for those wanting to apply for observing time:

For inquiries and updates please contact us by writing to radioproposal at

General guidelines

The three antennas shall be seen as a single coordinated facility so that users can submit a single proposal to request time at one or more than one telescope.
Please consult the following general guidelines:
  1. Observing with our telescopes
  2. Which antenna to use?
  3. Italian VLBI
  4. Recovery of lost observing time
  5. MoU and LoIs policy
  6. Proprietary time

Offered programs

The offered observing programs types are:
  1. Guest projects
  2. Large projects
  3. Long (multi-term) projects
  4. NAPA proposals
  5. ToO projects
All of these programs are TAC-evaluated and must be submitted using the official proposal form. Except for ToOs, which can be submitted at any time, all other proposals must be submitted at the regular deadlines. ToO evaluation and observations will be carried out quickly if the requested telescope is available.

Users can exceptionally apply for DDT (Director Discretionary Time) outside the regular calls. This is time at the disposal of the Directors of the institute(s) hosting the telescope(s).

INAF may also promote Legacy programs. These are very large projects that address broad scientific goals that are of interest to the scientific community at large.

Observational Status Summary

We strongly recommend the observers read the detailed information about the observational status of the three radio telescopes provided via the following page, which also links to useful tools (Exposure Time Calculator, source visibilty tool, etc.):
Here is a summary of the available receivers and back-ends: