2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Launches
  3. 1999
  4. 1999-026
// orbital launch

TERRIERS

Pegasus XL/HAPS launch from Vandenberg (United States) on May 18, 1999, carrying 2 payloads. GCAT records the launch as a success.

May 18, 1999 · 05:09 UTCLaunch 1999-026Launch no. 4,315 in the log
SpaceportVandenbergpad RW30/12
OutcomeSuccess
Launch agencyOSC-FairfaxUnited States

Flight

Date and time (UTC)
May 18, 1999, 05:09
Launch designation
1999-026
Mission
TERRIERS
Flight name
TERRIERS/MUBLCOM
Vehicle flight ID
F27

Orbit and payload

Initial apogee
778 km
Payload mass to orbit
0.192 t
Payloads
2
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
TERRIERS1999-026ANORAD 25735NASA Goddard Space Flight CenterSpace science125 kgReentered (orbital decay) · Oct 21, 2023
MUBLCOM1999-026BNORAD 25736US Army Communications-Electronics Materiel Readiness CommandCommunications48 kgCollided · Apr 16, 2005

Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.