Program archive

Twin gravity-mapping satellites

Twin gravity-mapping satellites is explored here through 2 archived missions, from GRACE through GRACE Follow-On, with the program’s spacecraft, people, milestones, and source-backed history connected along the way.

Missions: 2
People: 0
Vehicles: 2

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Twin gravity-mapping satellites spacecraft

2 mission-specific spacecraft and test articles, plus 0 launch systems and shared hardware records.

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Twin Earth-gravity mapping satellitesMarch 17, 2002

GRACE-1 and GRACE-2 twin spacecraft

GRACE-1 and GRACE-2 twin spacecraft launched at about 1,069 pounds (485 kilograms) each per satellite and operated under NASA Jet Propulsion Laboratory, German Aerospace Center, and GFZ German Research Centre for Geosciences.

Twin Earth-gravity mapping satellitesMay 22, 2018

GRACE-FO twin spacecraft

GRACE-FO twin spacecraft launched at about 1,323 pounds (600 kilograms) each per satellite and operated under NASA Jet Propulsion Laboratory and GFZ German Research Centre for Geosciences.