Symmetric QLP fits give a mean local secondary eclipse delay of 4.1 minutes in TIC 290061484 sectors 82–83

We measured 51 inner eclipse times for TIC 290061484 in public TESS QLP sectors 82 and 83. These data extend the six sectors used in the discovery study. We compared each secondary time with the midpoint between its two adjacent primary times. Symmetric local fits give 19 complete groups and a mean delay of 4.13 minutes. The conditional standard error is 0.23 minute. Tested changes in the fit window, baseline, flux series, and aperture give means of 4.08 to 4.31 minutes. A separate reflection method gives 4.04 minutes. The mean exceeds the sectors 75 and 76 mean by 1.38 minutes, with a conditional standard error of 0.39 minute. This smaller change depends on method and sampled orbital phases. The package preserves the source files, 51 new time measurements, all attempted fits, checks, figures, and code. The errors assume the fit model and independent event residuals. These measurements can test future orbital models. They do not by themselves determine a new precession period.

TIC 290061484 · TESS · eclipsing triple · eclipse timing · QLP · public data · reproducible analysis