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DOC URRIT RISUE
01126 - (A0891523]
Status of the IAVSTAR Global Positioning System. B-163058;
PS&D-77-23. Sarch 2, 1977. 31 pp.
Report to the Congress; b7 Robert F. Keller* Acting Comptroller
General.
Issue Area: Federal Procurement of Goods and Services: Notifying
the Congress of States of Important Procurement Programs
(1905); Science and Technology (2000).
Contact: Procurement and Systems Acquisitior, Div.
Budget Function- Nationai Defense (050); National Defense:
leapon Systems 10571.
Orqanz.,ation Concerned: Department oi the Air Force; De--m+nent
.f Defense.
Congressional Relevances Congress; House Comnittee on Armed
Services; Senate Committee on Armed Services.
The NAISTAR Global Positioning System (GPS) is a
space-based radio navigation system designed to ;rovide users
with worldwide three-dimensional pisition and velocity
information. The systes consists of three segments: space
satellites that transmit radio signals, ground-based monitoring
equipment, and user equipment for a variety of service
applications. Initial operational capability is planned for
1983. Findings/Conclusions: Performance requirements relating
to specific - needs have not been established. as with most
development programs, technical development problems have
developed; not all solutions to these problems have been tested.
Development problem with user equipmant and satellites caused a
schedule delay c almost a year, but by compressing the testing
from 22 to 14 months, officials expect to limit schedule
slippage to 2 or 3 months. This revised test schedule providas
no leeway for unforeseeable problems. Ectimated cost for the
initial phase of the program has inersased significantly because
of additions to support a Navy program. The total report cost is
over $1.3 billion; this amount does not include the cost for
user equipment or replenishment satellites. GIO believes that
the total program vill cost in excess of $3 billion.
Recommendations: The Secretary ui Defense should: reviev the GPS
program to determine operational b7stem performance required by
users; establish testing criteria for evaluating the adzquacy of
the GPS development progress; and asress the timc allotted for
the phase 1 test program. Be should explore alternatives to the
planned solicitation of contractor proposals before testing and
determine the total cost for the GPS development and related
activities. (ENS)](ViewImageLocal?handle=hein.gao/gaobaacaw0001&div=1&collection=&method=preview&ext=.png&size=3)