The SWARM mission consists of a constellation of 3 identical satellites dedicated to the study of the Earth's magnetic field.

To optimize the use of the 3 satellites and to obtain the required results, the SWARM constellation will be positioned as such:

2 satellites flying side by side (separation in longitude at the equator of about 150 km) in low polar orbit at an altitude of 490 km at the beginning of life, following an inclination of 87.35°.
1 satellite in high polar orbit at an altitude of 530 km at the beginning of life, with a 87.95° inclination.
2 orbital planes with two quasi-polar inclinations allowing a drift in local time.
Quasi-global cover.

SWARM A SWARM B SWARM C Orbit Not Sunsynchronous, nearly polars, nearly circulars Altitude (BOL) 490 km 490 km 530 km Altitude (EOL) ~ 300 km ~ 300 km ~ 480 km Excentricity ~ 0 ~ 0 ~ 0 Inclination (BOL) 87,35° 87,35° 87,95° RAAN X X + 1,4° Y