Observing in "Fast" Mode

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Revision as of 14:01, 12 May 2023 by Dgary (talk | contribs) (Created page with "=Fast Mode Observing Setup= ==Purpose== The normal operating mode of EOVSA is to tune across the entire 1-18 GHz band (50 tunings) each second, which means taking data in a given frequency band for 20 ms (actually 19 ms after 1 ms of settling time) per second. Some solar phenomena, especially coherent emission, varies on a much shorter timescale, making it of interest to have a mode where we dwell on one or more bands for a larger fraction of a second and recording data...")
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Fast Mode Observing Setup

Purpose

The normal operating mode of EOVSA is to tune across the entire 1-18 GHz band (50 tunings) each second, which means taking data in a given frequency band for 20 ms (actually 19 ms after 1 ms of settling time) per second. Some solar phenomena, especially coherent emission, varies on a much shorter timescale, making it of interest to have a mode where we dwell on one or more bands for a larger fraction of a second and recording data at a 20 ms rate during that dwell time. This is subject to the system requirement of a 1-s repetition rate, but is otherwise quite unrestricted. For example, it is possible to sit on one band for 0.8 s and then tune to 10 other bands at a 0.02 s rate to finish out the 1-s cycle, with this cycle repeating every second. Many other combinations are possible.

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