28 March 2019, 23:27 UTC
Two Thumbs Up (DARPA R3D2)

Electron's "Two Thumbs Up" mission launched DARPA's R3D2 experimental satellite, testing a tissue-thin Kapton membrane reflectarray antenna that deployed to 2.25 meters in diameter to demonstrate improved radio communications from small satellites.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 160 kg
- Flight
- 5th
- of 89 Electron flights
- Date and time
- 28 March 2019, 23:27 UTC
- Rocket
- Electron
- Builder
- Rocket Lab
- Launch site
- Rocket Lab Launch Complex 1A, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
- Payload
- Communications
- International designator
- 2019-016
- Launches in 2019
- 19th of 102
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
View satellites in Space Atlas