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  1. Shuttle Radar Topography Mission (SRTM) | NASA Earthdata

    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 80% of Earth's …

  2. Terrain Elevation - NASA Earthdata

    Jan 29, 2026 · NASA's terrain elevation data measure current height and changes in land altitude and are useful for creating digital elevation models.

  3. Digital Elevation/Terrain Model (DEM) | NASA Earthdata

    6 days ago · Digital Elevation Models, or DEMs, are three-dimensional models of the “bare earth” surface, showing elevation and topography without trees, buildings, or other objects. DEMs are …

  4. What is the altitude of the International Space Station?

    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 ISS to remain in a …

  5. Redirecting to https://www.earthdata.nasa.gov/learn/earth-observation ...

    Redirecting to https://www.earthdata.nasa.gov/learn/earth-observation-data-basics.

  6. Air Mass/Density | NASA Earthdata

    6 days ago · 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 other trace gases …

  7. Orbits - NASA Earthdata

    Space-based platforms can be placed in several types of orbits around Earth. The three common classes of orbits are low-Earth orbit (approximately 160 to 2,000 km above Earth), medium-Earth …

  8. How high up is a satellite in space and what factors ... - Answers

    Mar 12, 2025 · Satellites in space are typically located around 100 to 1,200 miles above the Earth's surface. The altitude of a satellite is determined by its intended purpose, such as communication or …

  9. Why do the boiling point of water decrease on climbing up the higher ...

    Jun 1, 2024 · Water usually boils at 212F or 100C at sea level. As you go higher up in the atmosphere (higher altitude), the amount of atmosphere pushing down on you decreases, hence the pressure …

  10. Why does temperature in the stratosphere increase with altitude?

    Jun 18, 2024 · In contrast to the troposphere, where temperature generally decreases with altitude, the stratosphere exhibits this temperature inversion due to the presence of ozone.