Europe's primary launch site and one of the world's best equatorial positions. At 5.2°N latitude, rockets need almost no plane change for GTO, giving Ariane payloads a ~15% mass advantage over sites at higher latitudes.
A launch site's latitude determines which orbits are achievable and at what fuel cost. Kourou at 5.2317°N sets the following constraints:
From 5.2317°N, Kourou can reach 5 Starlink inclination shells: 28.5° (equatorial belt), 43°, 53°, 70°, 97.6° SSO (polar).
Trains launched to higher inclinations are visible from more of the world. A 97° SSO train from Kourou would be visible at virtually every latitude; a 53° train is visible from latitudes up to ±25° (primarily) — mostly tropical and subtropical regions. In the hours after launch — before satellites raise their orbits — a tight train of 20–60 bright dots crosses the sky roughly every 90 minutes. Use OrbitalNodes' Starlink tracker for exact train pass times.
Guiana Space Centre is located at 5.2317°N, 52.7693°W in Kourou, French Guiana. It is owned and operated by CNES / ESA. The site has conducted approximately 400 orbital launches since its first in 1970.
Current vehicles operating from Guiana Space Centre include Ariane 6, Vega-C, Soyuz (retired). Primary customers are ArianeGroup, ESA, Arianespace, launching Commercial GEO, Earth observation, scientific missions.
At 5.2317°N, Kourou's minimum achievable inclination is 5.2° (due-east launch). The ISS at 51.6° is reachable with a dogleg manoeuvre. The near-equatorial location gives an excellent GTO mass advantage. The site can reach orbits between roughly 5° and 98° inclination.
Yes — Guiana Space Centre hosts a moderate cadence of approximately 10 orbital launches per year. Check the operator's website for public viewing arrangements and launch windows.
Satellites regularly launched from Kourou include Commercial GEO, Earth observation, scientific missions. The ISS was supplied or crew-launched from sites at similar latitudes. Use OrbitalNodes to track any visible satellite in real time.
Kourou's near-equatorial location at 5.2317°N is deliberate: equatorial sites maximise the Earth's rotational boost (~465 m/s eastward velocity) and minimise the inclination change needed for GEO and GTO missions. This translates directly into payload mass savings.
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