Public ZTF data show two faint measurements of ZTF J1944+4557 in August 2025

We test public ZTF data from August to October 2025 for faint measurements of ZTF J1944+4557. This white dwarf has known debris transits. We use g and r source detections, a 2024 brightness reference, and controls measured in the same exposures. The later sample has 59 detections on 32 UTC dates through October 21, 2025. We flag deficits of at least 0.30 mag and at least three times the combined error. Two measurements pass these tests. The corrected deficits are 0.381 +/- 0.075 mag in g on August 1 and 0.601 +/- 0.109 mag in r on August 8. They imply measured flux losses of 29.6 +/- 4.9% and 42.5 +/- 5.8%. A separate extraction from six image cutouts supports both deficits. The checks do not remove all effects from seeing or nearby light. No adverse mask bits occur within 3 pixels of either event position. No comparison source passes the same flag in 607 eligible later measurements. The evidence is consistent with continued dimming after the end of the published survey light curve. Isolated points do not establish a transit duration, a new period, or a new planet. Source detection and image depth can remove deep dips, so the measured fraction is not the fraction of time in transit. The package preserves raw tables, image and mask cutouts, exact requests and hashes, result tables, figures, source code, and reproduction instructions.

white dwarfs · planetary debris · ZTF J1944+4557 · ZTF · photometry · transits · public data · image validation