OPS 5111 (Navstar 1 / GPS I-1 / SVN-1), the first GPS navigation satellite, launched on an Atlas F/SGS-1 from Vandenberg SLC-3E into medium Earth orbit as the lead Block I demonstration spacecraft for the Global Positioning System.
- Outcome
- Success
- Orbit
- MEO
- Medium Earth orbit
- Payload to orbit
- 1.1 T
- Flight
- 2nd
- of 7 Atlas F/SVS flights
- Date and time
- 22 February 1978, 23:44 UTC
- Rocket
- Atlas F/SVS
- Builder
- Convair
- Launch site
- Space Launch Complex 3E, Vandenberg SFB, CA, USA
- Payload
- Navigation
- International designator
- 1978-020
- Launches in 1978
- 20th of 128
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
Object pages on Space Atlas: Navstar 1 (GPS I-1)
View satellites in Space Atlas