Orbital Sciences Corporation announced today that it received about $725 million in new orders
for its space and ground infrastructure systems during the first six months of
As a result, Orbital expects its firm contract backlog at June 30, 2000
to be approximately $2.1 billion and its total contract backlog including
options to reach $5.0 billion.

“All of Orbital’s infrastructure systems groups reported strong new order
bookings during the past six months,” stated Mr. David W. Thompson, Chairman
and Chief Executive Officer. “With continued robust contract wins in the
second half of the year, 2000 has the potential to be Orbital’s fifth straight
year of $1 billion-plus annual new order bookings,” he added.

Orbital’s space and ground infrastructure systems consist of satellites
and other space systems, launch vehicles, electronics and sensors, and ground
Its largest infrastructure product sector, satellites and related
space systems, received approximately $220 million of new orders so far this
In addition, launch vehicle new orders exceeded $265 million, while
electronics, sensors and ground systems bookings totaled about $240 million in
the first half of 2000.

Orbital is one of the largest space technology and satellite services
companies in the world, with 1999 total enterprise revenues (including
revenues from unconsolidated affiliates) of approximately $915 million.
company, headquartered in Dulles, Virginia, employs about 5,500 people at
major facilities in the United States, Canada and several overseas locations.

Orbital is the world’s leading manufacturer of low-cost space systems,
including satellites and space robotics, launch vehicles, electronics and
sensors, satellite ground systems and related digital infrastructure.
Magellan subsidiary is a pioneer in satellite-based navigation and
communications products for consumer and industrial markets.
Through its
ORBCOMM and ORBIMAGE affiliates and ORBNAV subsidiary, Orbital is also a major
operator of satellite-based networks that provide data communications, high-
resolution imagery and automotive information services to customers around the

To learn more about Orbital, as well as to access its recent press
releases, please visit its web site at http://www.orbital.com.