{'fraction_non_alphanumeric': 0.017724413950829045, 'fraction_numerical': 0.003430531732418525, 'mean_word_length': 5.4338235294117645, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A New Routine to Simulate Plasma Density Measurements from Satellites: Application to the SPORT Project

In this work, we simulated plasma density measurements along prescribed satellite circular orbits, varying the inclination in relation to the geographic equator. The IRI (International Reference Ionosphere) code was used to simulate the ionosphere and the orbits were simulated using a MATLAB® code. We developed a routine to interpolate the densities along the trajectory and plot the density curves measured by the satellite over time. We show how this curve is influenced by the inclination of the orbits and also by the time when the satellite crosses the magnetic equator. It was concluded that, over the Brazilian sector, curves that pass through conjugated points along the magnetic equator during the day tend to present the two peaks corresponding to the Appleton anomaly in a pronounced way. Due to the typical declination of the magnetic field in the Brazilian sector, the inclination of the CubeSat orbit of the SPORT (Scintillation Prediction Observation Research Task) project, of 51.6°, meets this condition for descending orbits. Analyzing complete tra-jectories at inclination angles of 51.6°, it was verified that the magnetic equator crossing time significantly influences the observed peaks related to the anomaly. The simulations also showed significant differences between different orbits that pass through the equator at the same local time but in different geographic regions, showing morphological differences in the Earth's magnetic field. The methodology developed here will be used in the interpretation of the experimental results obtained from SPORT, allowing direct comparison between simulation and measurement.