Landsat 1 (LS-1), formerly named ERTS-A and ERTS-1, was the first satellite of the United States' Landsat program. It was a modified version of the Nimbus 4 meteorological satellite and was launched on July 23, 1972, by a Delta 900 rocket from Vandenberg Air …

Explore the first Landsat images from space. Aboard a Delta 900 rocket, NASA’s Earth Resources Technology Satellite (ERTS) launched July 23, 1972, from Vandenburg Air Force Base in California. Later renamed, Landsat 1 became the first earth-observing satellite explicitly designed to study planet Earth.

Landsat 1 was launched on July 23, 1972; at that time the satellite was known as the Earth Resources Technology Satellite (ERTS). It was the first Earth-observing satellite to be launched with the express intent to study and monitor our planet’s landmasses.

2022年3月14日 · Learn more about Landsat 1. See first light images, significant events, and unique science. A long string of Earth-observing orbiters began with NASA's Earth Resources Technology Satellite (ERTS). Launched in July 1972, it was the first satellite explicitly designed to study our planet. Three years later, the satellite was renamed Landsat 1.

The Landsat program is the longest-running enterprise for acquisition of satellite imagery of Earth. It is a joint NASA / USGS program. On 23 July 1972, the Earth Resources Technology Satellite was launched. This was eventually renamed to Landsat 1 in 1975. [1] The most recent, Landsat 9, was launched on 27 September 2021.

Remarkably, within only two years, Landsat 1 was launched, heralding a new age of remote sensing of land from space. From the Beginning “The Landsat program was created in the United States in the heady scientific and exploratory times associated with taming the atom and going to the Moon,” explains Dr. John Barker.

2021年9月27日 · On July 23, 1972, the first Earth Resources Technology Satellite (ERTS-1), later renamed Landsat 1, was launched. After more than five decades of observations and eight operational missions, the Landsat program continues to deliver scientifically valuable and visually stunning images of the Earth.

2024年2月20日 · Landsat-1 gave us images of Earth like never before. Fifty years ago, humanity gained a powerful new tool to study our home planet.

Images from Landsat 1 demonstrated the usefulness of remote sensing data for land surveys, land management, water resource planning, agricultural forecasting, forest management, sea ice movement, and cartography.

2012年5月31日 · The NASA LS-1 (Landsat-1) spacecraft was a modified version of Nimbus-4 bus (built by General Electric), a three-axis stabilized Earth-oriented platform. An advanced attitude control system, consisting of horizon scanners, sun sensors, and a command antenna combined with a Freon gas propulsion system permitted the spacecraft's orientation to be ...