OSIRIS-REx flyby of Earth, September 22, 2017
Data as of 2026-10-12
Closest approach
- Instant (UTC)
- September 22, 2017, 16:51:46 UTC
- Distance from the centre of Earth
- 23,592 km
- Speed relative to Earth
- 8.52 km/s
The distance is counted from the centre of the body, not from its surface.
In Galaxy
Open OSIRIS-REx at this instant, at true scale
Pages of the spacecraft and of the body:
How it is measured
The position of the spacecraft relative to the body is read from Horizons every minute for six hours around the approach, then every second for three minutes around the nearest minute. The closest of those positions is the one published here.
Source
NASA/JPL Solar System Dynamics, Horizons System. Read on October 12, 2026.
Trajectory solution cited by Horizons: ORX_merged