Launch Success
Liftoff Time (GMT)
14:39:00
Monday August 25, 1997
Watch Replay
Official Livestream
Advanced Composition Explorer (ACE) is a NASA Explorers program Solar and space exploration mission to study matter comprising energetic particles from the solar wind, the interplanetary medium, and other sources.
Heliocentric Orbit
1 Payload
562 kilograms
Manufacturer
ULARocket
Height: 38.1m
Payload to Orbit
LEO: 5,000 kg
Liftoff Thrust
3,511 Kilonewtons
Fairing
Diameter: 2.4m
Height: 8.49m
Stages
2
Strap-ons
9
61st
Mission
7th
Mission of 1997
47th
Orbital launch attempt