The Medicina 32-m and the Sardinia Radio Telescope 64-m radio-telescopes are facilities open to the scientific community. Early radio observations related to the SunDish project relied on observing time granted through INAF Guest Observer programs, Discrectionary Director Time (DDT) and testing activities (depending on the specific task/operation). At present status, the development and improvemet of our solar observing techniques imply major hardware and software updates requiring further testing/commissioning activities .

Features on the solar disk can evolve on very short timescales, thus a daily monitoring is the optimal and typical choice for dedicated radio solar facilities (as for example NoRH and MRO). However, since bright radio active regions typically persist from a few days to 10-15 days, an almost-weekly monitoring campaign, the actual periodicity being flexible (accounting for pre-existing radio telescope schedule constraints as VLBI sessions), could be a good compromise for typical solar sessions when exploiting a non-dedicated solar instrument as the Medicina 32-m and the SRT 64-m radio-telescopes. Hence, we typically propose 52 'ordinary' observing sessions per year, covering the initial rise of the solar activity from the present solar mimimum for at least two years (3.5 hours x 104 sessions = 364 hours). After this "solar imaging commissioning" period, in addition to the required yearly updates, we will provide a major revision of our observing requirements accounting for the radio telescope development/upgrade plan and our long-term results. In case of significant events prodromal of major flares or requiring their follow-ups (needing monitoring in consecutive days), we will propose to consider the opportunity to let us carry out two or more sessions in consecutive days, if the antenna availability allows for such arrangements. This would grant the maximisation of the scientific output without affecting the telescope schedules, on a best-effort basis. The availability of local co-Is/observers during normal working hours ensures the feasibility of these sessions by part of our team.

For exceptional events - e.g. hazardous Space Weather events - possibly deserving high-priority, we would follow standard INAF ToO-proposal procedure to ask for possible hourly/daily monitoring.