Air-launched from an L-1011 over Point Arguello, carrying NASA's TERRIERS ionospheric-research satellite and the Army/DARPA MUBLCOM communications-relay experiment as co-payloads.
- Outcome
- Success
- Payload to orbit
- 192 kg
- Flight
- 4th
- of 5 Pegasus XL HAPS flights
- Date and time
- 18 May 1999, 05:09 UTC
- Rocket
- Pegasus XL HAPS
- Builder
- OSC
- Launch site
- Vandenberg Space Force Base, Air launch to orbit
- Payload
- Unknown
- International designator
- 1999-026
- Launches in 1999
- 27th of 78
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
View satellites in Space Atlas