TRACERS
| Names | TRACERS |
|---|---|
| Mission type | Heliophysics |
| Operator | NASA |
| Website | tracers |
| Spacecraft properties | |
| Spacecraft | TRACERS |
| Spacecraft type | Orbiters (2) |
| Manufacturer | Millennium Space Systems |
| Start of mission | |
| Launch date | July 23, 2025 18:13 UTC (11:13 am PDT) |
| Rocket | Falcon 9 Block 5 |
| Launch site | Vandenberg Space Launch Complex 4 |
| Contractor | SpaceX |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit Polar |
| Altitude | 600 km (370 mi) |
TRACERS logo Small Explorer program (SMEX) | |
Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) is a orbiter mission tasked to study the origins of the solar wind and how it affects Earth. TRACERS was proposed by Craig A. Kletzing at the University of Iowa who served as Principal Investigator until his death in 2023. David M. Miles at the University of Iowa was named as Principal Investigator in his stead. The TRACERS mission received US$115 million in funding from NASA.