Eight TESS sectors exclude stable repeats of the four-hour TOI-2423.01 dip from 1 to 19.829 days under the stated recovery rule

We test a constant period for the single deep dip of TOI-2423.01 (TIC 197807043). We compare TESS sectors 2, 4, 29, 30 and 31 with the same data plus sectors 69, 96 and 97. We require a stable event like the original dip, which is about 1.1 percent deep and four hours long. The reference time is BTJD 2097.062 with a fixed envelope of plus or minus 0.020 day. We map complete, quiet time windows to continuous period intervals from 1 to 1000 days. The first surviving interval starts at 19.8290015 days, compared with 14.9642083 days for the early data. Later visits remove 146.724 days from the total length of surviving intervals. Only 30.1574476 to 30.1605706 days survives within the 24 to 32 day range. These lengths are not probabilities. An initial recovery test found five failures in one raw-flux region. We retain that test and apply a general quality cut. All 1040 final tests recover added dips of 0.5 or 1 percent with durations of 3, 4.2 or 6 hours, including 80 periodic tests. The map is conditional on the stated shape, time and recovery rules. It does not confirm a planet or measure an orbital period. The package contains raw data, source records, code, figures, interval witnesses and checks for a separate full run.

TESS · TOI-2423.01 · TIC 197807043 · single transit · period intervals · injection recovery · public data