Calculateur de Vitesse de Satellite — Formule

Satellite Speed From Altitude

v = √(GM / r) where r = R_Earth + altitude

Using GM_Earth = 3.986e14 m³/s² and R_Earth = 6371 km.

The period follows: T = 2πr / v

Exemple Résolu

Find the speed of the ISS at 400 km altitude.

  1. r = 6371 + 400 = 6771 km = 6 771 000 m
  2. v = √(3.986e14 / 6 771 000) ≈ 7 673 m/s
  3. Period = 2π × 6 771 000 / 7 673 ≈ 5 542 s ≈ 92.4 min