Takeoffs and landings of Koliber 150 aircraft with annotations (touchdown and takeoff moments)

Description

The dataset contains multivariate time series of interial measurement unit indications (accelerations in x, y, z axes and Euler angles - pitch, roll, yaw) with correlated GPS indications (longitude, latitude and velocity). The data was collected at airports in Świdnik and Radawiec in Poland with a Koliber 150 aircraft. Every measuring flight had similar characteristics and followed a standard four-turn pattern. The data was collected using the onboard AIMUMETER device. The device is based on an IMU whose sampling rate is 50Hz, while the GPS system's sampling rate is 1Hz. The data from the IMU and GPS module indications were referenced to each other. Note that in the dataset in question, the elements in the time series for which actual GPS indications were obtained were referenced to IMU data with a tolerance of 10 samples. Data structure: In the attached archive, there are two folders: landings and takeoffs. Files inside the folders contain information regarding IMU indications: acceleration in 3 axes (ax, ay, az), Euler angles (pitch, roll, yaw), longitude and latitude (lat, flight), velocity (vel), and takeoff and touchdown moments (column l, value 1 denotes the occurrence of a touchdown or takeoff moment). The data in the two folders were denoted by the letters A, B, C, where: A - measurements taken in Świdnik in May. Temperature: 18 °C, wind velocity/direction: 17 knots / 110°, QFE: 1020, cloudiness: ◔; B - measurements taken in Świdnik in May. Temperature: 24 °C, wind velocity/direction: 29 knots / 135°, QFE: 1020, cloudiness: ◑; C - measurements taken in Radawiec in June. Temperature: 21 °C, wind velocity/direction: 5 knots / 300°, QFE: 1020, cloudiness: ◑.

Steps to reproduce

The designed reference approach relies on communication between the AIMUMETER device inside the Koliber 150 aircraft and the user-operated ground station. A wireless Internet connection is used to allow communication between the two units. By using the same real-time server, the timings on the two units are synced. The distinctive spot where the airplane lands or takes off is where the ground unit is placed. Both the user inside the cockpit and the user-operated ground station determine the moment of touchdown or takeoff. This information is transmitted to a device inside the aircraft.

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