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Published on: May 1, 2018
Magallanes: rendimiento del radar y productos de datos
Resumen
El orbitador de Magallanes alrededor de Venus.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Radar Astronomía y Astronomía por el Radar
- Exploración de Venus La exploración de Venus.
Sus antecedentes:
- La misión Magallanes utilizó un sofisticado sistema de radar a bordo del orbitador de Venus.
- Este instrumento fue clave para mapear la superficie venusiana y comprender su topografía y propiedades térmicas.
Objetivo del estudio:
- Para detallar las capacidades y el rendimiento del sistema de radar del orbitador Magellan Venus.
- Para presentar los hallazgos iniciales sobre la topografía de la superficie de Venus y la emisividad.
Principales métodos:
- Empleando un sistema de radar de longitud de onda de 12,6 centímetros con tres modos distintos de toma de datos: synthetic-aperture, altimetric y radiometría de emisión térmica.
- Lograr resoluciones de imágenes de superficie entre 120 y 300 metros con radar de apertura sintética.
- Medición de la altura relativa con precisiones cercanas a los 5 metros en modo altimétrico, con incertidumbres absolutas alrededor de los 50 metros.
Principales resultados:
- El radar de apertura sintética proporcionó imágenes detalladas de la superficie.
- Los datos altimétricos revelaron variaciones topográficas, con el punto más alto identificado en Maxwell Mons en un radio planetario de 6062 kilómetros.
- Las emisividades superficiales se determinaron con una precisión absoluta de aproximadamente 0.02.
Conclusiones:
- El sistema de radar de Magallanes cartografió efectivamente la superficie de Venus, proporcionando datos topográficos y térmicos de alta resolución.
- La misión identificó con éxito características geológicas clave, incluidas las elevaciones más altas del planeta.
- Los productos de datos de archivo están disponibles para futuras investigaciones.
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