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- The Venus Radar Mapper (VRM) mission is sponsored by NASA to put a single spacecraft in orbit around Venus to map the surface of Venus using a synthetic aperture mapping radar. The spacecraft is scheduled to be launched in April 1988 using a Shuttle-Centaur G combination.
ntrs.nasa.gov/search.jsp?R=19840038505The Venus Radar Mapper (VRM) mission - NASA Technical Reports ...
The mapping of Venus refers to the process and results of human description of the geological features of the planet Venus. It involves surface radar images of Venus, construction of geological maps, and the identification of stratigraphic units, volumes of rock with a similar age.
Magellan was designed to use a Synthetic Aperture Radar (SAR) to map 70% of the Venusian surface down to a resolution of 390 to 985 feet (120 to 300 meters).
- United States of America (USA)
- Magellan
- Venus Orbit
- 7,595 pounds (3,445 kilograms)
May 6, 2019 · Magellan’s high-resolution radar global map of Venus, comparable in resolution to visible light imagery-based maps of other bodies in the solar system, provided scientists with a deeper understanding of Venusian geology and the role of meteorite impacts, volcanic activity, and tectonics in the formation of surface features.
The VISAR instrument takes advantage of radar hardware and interferometry advances since Magellan to enable improved mapping of the surface of Venus. VISAR is an X-band (3.8-cm wavelength), single pass interferometer that will acquire both imagery and topography, globally, for the Venusian surface.
The Magellan mission mapped the surface of Venus with radar in the 1990s. The images gave the first global view of what was below Venus’ thick clouds. This radar image aligns with the surface features seen on WISPR images captured by Parker Solar Probe during its third flyby of the planet in July 2020. Credits: Magellan Team/JPL/USGS.
May 6, 2019 · Magellan’s high-resolution radar global map of Venus, comparable in resolution to visible light imagery-based maps of other bodies in the solar system, provided scientists with a deeper understanding of Venusian geology and the role of meteorite impacts, volcanic activity, and tectonics in the formation of surface features.
VISAR (Venus Interferometric Synthetic Aperture Radar) is designed to generate global data sets for topography (250 m horizontal by 5 m vertical accuracy) and SAR imaging at 30 m resolution with targeted resolution at 15 m (compare to Magellan which had 50 km spatial and 100 m vertical resolution).
