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On orbit performance of the solar flare trigger for the Hinode EUV Imaging Spectrometer View all abstracts by submitter

David Brooks   Submitted: 2023-03-24 22:43

We assess the on-orbit performance of the flare event trigger for the Hinode EUV Imaging Spectrometer. Our goal is to understand the time-delay between the occurrence of a flare, as defined by a prompt rise in soft X-ray emission, and the initiation of the response observing study. Wide (266 ′′) slit patrol images in the He II 256.32A spectral line are used for flare hunting, and a reponse is triggered when a pre-defined intensity threshold is reached. We use a sample of 13 > M-class flares that succesfully triggered a response, and compare the timings with soft X-ray data from GOES, and hard X-ray data from RHESSI and Fermi. Excluding complex events that are difficult to interpret, the mean on orbit response time for our sample is 2 min 10 s, with an uncertainty of 84 s. These results may be useful for planning autonomous operations for future missions, and give some guidance as to how improvements could be made to capture the important impulsive phase of flares.

Authors: David H. Brooks, Jeffrey W. Reep, Ignacio Ugarte-Urra, Harry P. Warren
Projects: Hinode/EIS

Publication Status: To be published in Frontiers in Astronomy and Space Science
Last Modified: 2023-03-25 12:07
Go to main E-Print page  Statistical study of Type III bursts and associated HXR emissions  Plasma Composition Measurements in an Active Region from Solar Orbiter/SPICE and Hinode/EIS  Edit Entry  Download Preprint  Delete Entry 

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