English: This chart offers insight into data the DART team used to determine the orbit of Dimorphos after impact – specifically, small reductions in brightness due to eclipses of Didymos and Dimorphos. The new observations show the Dimorphos eclipses occur at different times (green arrows) than if the period were unchanged (gray arrows). The top timeline shows observations the DART team used to determine Dimorphos’ new orbital period, with two sets of that data (from Sept. 29, 2022, and Oct. 4, 2022) shown in detail. The observed decreases in relative brightness for each night’s dataset correspond to Dimorphos eclipses from a new orbital period of 11 hours and 23 minutes – demonstrating that the eclipse timing differs from pre-impact period of 11 hours and 55 minutes.