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Event Grade ○｜Definition｜1st｜20251021174323-00-⌔
Dictionary: Grade (Event Grade) - CIAO 4.17
Grade (Event Grade)
The grade is a number assigned to every event based on which pixels in its 3x3 island are above their threshold value. The initial grade is assigned by on-board processing, which first finds local maxima, then analyzes the values of the surrounding 3x3 neighboring pixels. Based on this pattern, the event is assigned a grade. For example, a single-pixel event has a grade of 0. See the Event Grade section of the Proposers’ Observatory Guide for more information.
Printed 2026-06-28.
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