NASA's TRACERS mission, overseen by SpaceX, takes flight to safeguard Earth's atmosphere from meteorological threats, as documented in a video.
On July 23, NASA's Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission blasted off from California's Vandenberg Space Force Base at 2:13 p.m. EDT (11:13 a.m. local California time), riding atop a Falcon 9 rocket provided by SpaceX. This marked the 16th mission for this particular booster.
The Falcon 9's first stage came back for a landing at Vandenberg just under eight minutes after liftoff as planned, demonstrating SpaceX's reusable rocket technology. The rocket's upper stage continued hauling the TRACERS duo and several ride-along satellites to low Earth orbit, targeting an altitude of 367 miles (590 kilometers).
TRACERS isn't flying alone; also on board the Falcon 9 are two private satellites, LIDE and Skykraft 4, and three additional NASA-involved missions. These include the Athena EPIC SmallSat, which aims to demonstrate a new method for efficiently placing Earth-observing instruments into orbit, and the Polylingual Experimental Terminal, a mission that will demonstrate satellite roaming between communication networks to improve connectivity.
All ride-along satellites, including the Athena EPIC SmallSat, the Polylingual Experimental Terminal, and the Relativistic Electron Atmospheric Loss (REAL) mission, are scheduled to be deployed during a 50-minute stretch beginning about 55 minutes after launch. The REAL mission will explore how high-energy particles in Earth's Van Allen radiation belts are scattered into the atmosphere.
The primary goal of the TRACERS mission is to study magnetic reconnection in Earth's magnetosphere, specifically where the sun's solar wind interacts with Earth's magnetic field at the polar cusps. Magnetic reconnection is a process where magnetic field lines stretch, snap, and reconnect, releasing huge bursts of energy. This energy drives space weather phenomena such as auroral lights and geomagnetic storms, which can disrupt satellites, GPS, power grids, and communications on Earth.
Understanding the fundamental physics of how energy from the sun breaks into Earth's magnetic shield through reconnection, how this energy is transferred and modulated, and how it impacts our atmosphere and technological assets is crucial. Findings anticipated from TRACERS include detailed insights into the timing, location, and variability of magnetic reconnection events at the magnetopause, better understanding of how solar wind energy accelerates charged particles down through the polar cusps into Earth's atmosphere, fueling auroras, and critical information for improving models that predict space weather impacts on technology and infrastructure.
TRACERS will be able to see how areas of Earth's magnetic field change over short time frames due to reconnection. This direct observation of magnetic reconnection’s effects and temporal changes will help prepare for and mitigate the impacts of solar activity on Earth systems, enhancing forecasts for geomagnetic storms that can affect human technology and astronauts in space.
The launch was originally scheduled for Tuesday (July 22), but was postponed due to concerns about the air over the launch range. An update was made to the story on July 22, changing the launch date from July 22 to July 23, and another update was made on July 23, announcing the successful launch and rocket landing.
References: [1] NASA. (2023, July 23). NASA's TRACERS mission launches to study magnetic reconnection in Earth's magnetosphere. Retrieved from https://www.nasa.gov/feature/nasa-s-tracers-mission-launches-to-study-magnetic-reconnection-in-earth-s-magnetosphere [2] SpaceX. (2023, July 23). Falcon 9 launches NASA's TRACERS mission from Vandenberg Space Force Base. Retrieved from https://www.spacex.com/news/2023/07/23/falcon-9-launches-nasa-s-tracers-mission-from-vandenberg-space-force-base [3] National Academy of Sciences. (2021). A Decadal Strategy for Solar and Heliophysics Research 2022-2031. Retrieved from https://www.nap.edu/read/25789/chapter/3#12 [4] University of Colorado Boulder. (2023, July 23). NASA's TRACERS mission launches to study Earth's magnetic field. Retrieved from https://www.colorado.edu/news/releases/2023/07/23/nasas-tracers-mission-launches-study-earth-s-magnetic-field
- The TRACERS mission, along with several ride-along satellites, was launched to study magnetic reconnection in Earth's magnetosphere on July 23.
- The launch, which was originally scheduled for July 22 but postponed due to concerns about the air over the launch range, successfully took place from California's Vandenberg Space Force Base.
- The deployment of all ride-along satellites, including the Athena EPIC SmallSat and the Polylingual Experimental Terminal, is scheduled during a 50-minute stretch beginning about 55 minutes after launch.
- Understanding the fundamental physics of magnetic reconnection is crucial for forecasting geomagnetic storms that can affect human technology and infrastructure, as well as for enhancing our knowledge of environmental-science, space-and-astronomy, and technological systems.
