The dataset contains GNSS observations and broadcast ephemeris data recorded on November 27, 2025 (DOY: 331), using two high-precision GNSS receivers operating in a short-baseline configuration (kinematic rover and static reference). The receivers were configured to track multiple GNSS constellations, including GPS, Galileo, and BeiDou, at a 1 Hz sampling rate. The data are stored in RINEX 3.05 format (Receiver Independent Exchange Format): WUT000XXX_R_20253310800_50M_01S_MO - rover (kinematic) receiver JOZE00XXX_R_20253310800_50M_01S_MO - reference receiver: https://epncb.eu/_networkdata/siteinfo4onestation.php?station=JOZE00POL JOZE3310.25P - broadcast ephemeris Observations were recorded simultaneously in the following time window: Start: 2025-11-27 08:40:00.0 GPST End: 2025-11-27 09:29:59.0 GPST