Austin, TX - May 31, 2006 - Symtx, Inc., the leading independent supplier of advanced automated functional testing solutions, announced a contract award by Orbital Sciences Corporation to provide a standard functional test platform for satellite bus electronic modules. The system includes analog, digital, power and control testing and stimulus.

“Symtx has a 20 year track record of serving the satellite industry and we are very pleased to have been selected to support Orbital Sciences Corporation in the development of this functional test system,” noted Len Gilmore, President & CEO, Symtx, Inc.

About Symtx Inc.

Symtx Inc., founded in 1983, is the largest independent manufacturer of functional test systems for electronics manufacturers. As an AS9100: Rev B and ISO9001:2000 certified company headquartered in Austin, Texas, Symtx offers a variety of ATE products and services within the defense/aerospace, avionics, telecommunications, medical, RF/microwave, optical, automotive, semiconductor, and consumer/industrial electronics industries (www.symtx.com).

About Orbital Sciences Corporation

Orbital Sciences Corporation was founded in 1982 with the goal of making space technology more affordable, accessible and useful to millions of people on Earth. Since then, Orbital has grown to become the world's leading developer and manufacturer of smaller, more affordable space and rocket systems.