Status of Venus Global Reference Atmospheric Model (Venus-GRAM) Upgrades

Venus-GRAM Overview
- Engineering-oriented atmospheric model that estimates mean values and statistical variations of Venus atmospheric properties
- Outputs include atmospheric density, temperature, pressure, chemical composition, and wind components along a user-defined path
- Widely used by the engineering community because of its ability to create realistic atmospheric dispersions
- Can be integrated into high fidelity flight dynamic simulations of launch, entry, descent and landing (EDL), aerobraking and aerocapture
- Has been used in multiple studies and proposals including NASA Engineering and Safety Center (NESC) Autonomous Aerobraking Study and various Discovery proposals
- Optional trajectory input file consisting of time, height, latitude, and longitude can be used to provide the Venus-GRAM trajectory path
- Optional auxiliary profile consisting of height, latitude, longitude, temperature, pressure, density, eastward wind, and northward wind may be used to replace model data in Venus-GRAM
- Not a forecast model
- GRAMs are also available for Earth, Mars, Titan, Neptune, Uranus, and Jupiter
- Available through the NASA Software Catalog https://software.nasa.gov/software/MFS-33888-1