Welcome to the STEREO website! » STEREO 10 Anniversary. STEREO currently consists of a space-based observatory, STEREO-A, orbiting the Sun just inside of 1 AU - slowly catching up with Earth as it orbits about the Sun.

2018年12月5日 · Archive for STEREO telemetry, mission support data, and higher level instrument data and analysis software. Processing center for STEREO space weather beacon data. Focal point for science coordination.

STEREO (Solar TErrestrial RElations Observatory) is a solar observation mission. [2] Two nearly identical spacecraft ( STEREO-A , STEREO-B ) were launched in 2006 into orbits around the Sun that cause them to respectively pull farther ahead of and fall gradually behind the Earth.

This figure plots the current positions of the STEREO Ahead (red) and Behind (blue) spacecraft relative to the Sun (yellow) and Earth (green). The dotted lines show the angular displacement from the Sun. Units are in A.U.

On Aug. 12, 2023, NASA’s STEREO-A spacecraft will pass between the Sun and Earth, marking the first Earth flyby of the nearly 17-year-old mission. The visit home brings a special chance for the spacecraft to collaborate with NASA missions …

2019年10月26日 · STEREO-A passed between the sun and the Earth for the first time since its launch in 2006, NASA announced. The flyby marked a milestone for the spacecraft and the team that has monitored its progress - and a chance for STEREO-A …

STEREO provides a unique and revolutionary views of the Sun-Earth system. The satellites trace the flow of energy and matter from the Sun to Earth as well as reveal the 3-D structure of coronal mass ejections and help us understand why they happen.

Positions of STEREO A and B for 21-Jan-2025 06:00 UT This figure plots the current positions of the STEREO Ahead (red) and Behind (blue) spacecraft relative to the Sun (yellow) and Earth (green). The dotted lines show the angular displacement from the Sun. Units are in A.U.

Information about STEREO-A close approach to Earth, August 2023 . Positions of STEREO A and B for 24-Jan-2025 17:00 UT. This figure plots the current positions of the STEREO Ahead (red) and Behind (blue) spacecraft relative to the Sun (yellow) and Earth (green). The dotted lines show the angular displacement from the Sun. Units are in A.U.

Information about STEREO-A close approach to Earth, August 2023 . Positions of STEREO A and B for 11-Dec-2024 12:00 UT. This figure plots the current positions of the STEREO Ahead (red) and Behind (blue) spacecraft relative to the Sun (yellow) and Earth (green). The dotted lines show the angular displacement from the Sun. Units are in A.U.