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TRACERS-B
NASA heliophysics spacecraft investigating solar particles interacting with Earth's magnetosphere. TRACERS-B was launched on July 23, 2025 aboard a Falcon 9 from Vandenberg. Latest status in GCAT: in orbit.
COSPAR 2025-154BNORAD 64870United States
Identity
- Name in GCAT
- TRACERS 1
- Common name
- TRACERS-B
- International designator
- 2025-154B
- NORAD catalog number
- 64870
- GCAT identifier
- S64870
Mission
- Mission type
- Space science
- Use
- Civil government
- Program
- SMEX
- Owner
- NASA
- Country
- United States
- Builder
- Boeing Millenium Space Systems/El Segundo factory
- Platform (bus)
- TRACERS
Launch
- Date
- July 23, 2025 · 18:13 UTC
- Launch record
- 2025-154Success
- Rocket
- Falcon 9
- Spaceport
- Vandenberg · pad SLC4E
Orbit and fate
- Orbit class (GCAT)
- LLEO/S
- Perigee
- 590 km
- Apogee
- 596 km
- Inclination
- 97.72°
- Status
- In orbit
- Last known active
- Jul 23, 2025
Size
- Mass
- 200 kg
- Dry mass
- 200 kg
- Length
- 1.0 m
- Diameter
- 1.30 m
- Span
- 13.7 m
Launched together
Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q135476447 (CC0).