田园一号卫星
The China National Space Administration has opened an international cooperation opportunity for the Xihe-2 solar observation mission.
The Xihe-2 mission will study the characteristics and evolution of magnetic fields in active solar regions.
The Xihe-2 mission is planned for the Sun-Earth L5 Lagrange point.
The Xihe-2 mission is intended to improve early warnings and forecasts for space weather.
The Xihe-2 mission will monitor how solar eruptions propagate and affect Earth.
The Xihe-2 mission offers about 15 kilograms of payload resources for international cooperation.
The Xihe-2 mission will investigate the three-dimensional structure and mechanisms of solar eruptions.
Xihe-2 is scheduled to launch in 2029.
Xihe-2 is expected to reach the Sun-Earth L5 Lagrange point 790 days after launch.
The Xihe-2 payload includes a High-Energy Radiation Spectrometer to detect hard X-rays and gamma rays and determine non-thermal electron and ion acceleration sites during flares.
A hypothetical Xihe-4 mission would perform close approaches to the Sun to regularly measure particles.
Xihe-2 has mission objectives that include improving space weather predictions and early warnings for solar ejections.
The Xihe-2 payload includes a Vector Magnetograph to measure three-dimensional magnetic field vectors and plasma velocities in the solar photosphere using polarized light spectroscopy.
CHASE (Xihe) operates in a sun-synchronous orbit around Earth and images the Sun with an H-alpha spectrometer to study photospheric and chromospheric activity.
Li Chuan is the Chief Designer of the original Xihe mission’s scientific and application system at Nanjing University’s School of Astronomy and Space Science.
The Xihe-2 payload includes an Extreme Ultraviolet Imager to observe the solar corona in two key wavelengths for capturing the evolution of pre-eruption magnetic flux ropes and current sheet structures during flares.
Ding Mingde is a Nanjing University professor who is the Chief Scientist of the first Xihe mission and a participant in Xihe-2.
Xihe-2 will take approximately 480 days to travel from Earth to the Sun-Earth L5 Lagrange point.
The Xihe-2 payload includes a Coronal and Heliospheric Imaging Package with a white-light coronagraph to image coronal mass ejection initiation and early acceleration near the Sun and a heliospheric imager to track their propagation through interplanetary space.
The Xihe-2 payload includes an In-Situ Detection Package to measure solar wind plasma parameters, energetic particles across multiple energy ranges, and interplanetary magnetic field vectors at the L5 point.