Test and Evaluation

Major System/ Platform Variant

Original Planned

Current Planned

Achieved/ Forecast

Variance (Months)

US Government Acceptance

WGS 6

Nov 13

Nov 13

Test Readiness Review

IAS - East TRR

Jul 09

Mar 10

8

IAS - West TRR

Jul 09

Mar 10

8

Acceptance

IAS - East Acceptance

Sep 09

Aug 10

11

IAS - West Acceptance

Sep 09

Sep 10

12

Variance Explanations

Test Readiness Review (TRR) and Acceptance milestones for the Interim Anchoring System (IAS) have slipped primarily due to the more extensive and demanding level of engineering process and breadth of WGS certification testing required to approve the system to be used on the WGS constellation.