Parker Solar Probe at perihelion, November 21, 2021
Data as of 2026-10-22
The instant
- Instant (UTC)
- November 21, 2021, 08:25:24 UTC
- Distance from the centre of the Sun
- 9,237,744 km
- Altitude above the nominal radius
- 8,542,044 km
- Speed relative to the Sun
- 163.02 km/s
Perihelion no. 10 of 33 in the series read for Parker Solar Probe
This is the instant at which the distance between Parker Solar Probe and the centre of the Sun is smallest on this stretch of its orbit. The Sun has no solid surface: the altitude is that distance minus the nominal radius of 695,700 km.
Before and after
- Previous perihelion
- August 9, 2021, 11,114,010 km from the centre (+1,876,266 km compared with this one)
- Next perihelion
- February 25, 2022, 9,237,702 km from the centre (-42 km compared with this one)
In Galaxy
Open Parker Solar Probe at this instant, at true scale
Pages of the spacecraft and of the Sun:
How it is measured
The position of the spacecraft relative to the centre of the Sun is read from Horizons every hour across the window of its published trajectory; a local minimum is the smallest distance within 20 days on either side. Around each one the position is read again every minute, then every second, and the smallest distance is kept. The rank counts these minima from the first one of the window, so it is not necessarily the numbering of the mission. A minimum at the edge of the window is not listed, since the trajectory does not show that it rises again.
Source
NASA/JPL Solar System Dynamics, Horizons System. Read on October 22, 2026.
Trajectory solution cited by Horizons: psp_merged