Feb 11, 2000 · The Shuttle Radar Topography Mission (SRTM) payload flew aboard the Space Shuttle Endeavour during the STS-99 mission. SRTM collected topographic data over nearly …

Nov 21, 2025 · NASA's terrain elevation data measure current height and changes in land altitude and are useful for creating digital elevation models.

Jun 15, 2024 · Density altitude is a measure of air density relative to standard atmospheric conditions, and it is calculated by adjusting the pressure altitude for temperature and humidity.

Jan 5, 2025 · The International Space Station (ISS) orbits Earth at an average altitude of approximately 420 kilometers (260 miles) above the Earth's surface. This altitude allows the …

Nov 21, 2025 · NASA's data for digital elevation models (DEM) comes from airborne and space-based sources and are useful for analyzing a majority of Earth's terrain.

Feb 12, 2025 · To see the curvature of the Earth, you would need to be at an altitude of at least 35,000 feet, which is roughly the cruising altitude of commercial airplanes.

Nov 21, 2025 · Air mass/density is a fundamental property of atmosphere. Mixture of gases forming Earth's atmosphere, consisting of nitrogen (∼78%), oxygen (∼21%), water vapor, and …

Feb 10, 2025 · The curvature of the Earth can be observed at an altitude of around 35,000 feet or higher, such as when flying in a commercial airplane.

Nov 20, 2025 · What is Remote Sensing? Remote sensing is the acquiring of information from a distance. NASA observes Earth and other planetary bodies via remote instruments on space …

Sep 22, 2023 · 35,000ft (A380-800, initial cruise altitude). The service ceiling (maximum altitude) of this aircraft is 43,000 ft.