The effects of any budget/program decisions made since the information was collected during 1997-98 are NOT reflected in the National Security Space Road Map (NSSRM).

---

(U) National Missile Defense X-Band Radar

Description (U):

(U) The NMD XBR is the primary fire control sensor, providing surveillance, acquisition, tracking, discrimination, fire control support and kill assessment for the National Missile Defense (NMD) system. Prior to commitment of interceptors, the radar performs surveillance as directed by the NMD BMC3 from a cue by SBIRS Low or other sensors, and will acquire, track, classify/identify and estimate trajectory parameters for targets. In post-commit, the radar will discriminate and track the target(s), and provide via the In-Flight Interceptor Communications System (IFICS) an In-Flight Target Update (IFTU) and a Target Object Map (TOM) to the interceptor(s). The NMD XBR leverages off the Theater High Altitude Area Defense (THAAD) Ground-based Radar whose development and technical maturity has helped reduce the GBR/XBR development time.

User Impact (U):

(U) To be supplied.

Programmatics (U):

(U) Programmable.

• (U) IOC: 09/2003 (4QFY2003).

Images (U):

This Table Is Unclassified.

Name	Title
GBR	Ground Based Radar (GBR)

Related Initiatives (U):

This Table Is Unclassified.

Name	Title
Ground-Based Radar Prototype	Ground-Based Radar Prototype

Related Requirements (U): None.

Related Categories (U):

This Table Is Unclassified.

Name	Title
Surveillance	Surveillance

Road Map Placements (U):

This Table Is Unclassified.

Name	Title
SPACE CONTROL: NMD/ COUNTERSPACE	SPACE CONTROL: NMD/ COUNTERSPACE

Requirements, Funding and Additional Hotlinks (U):

(U) None.

Lead Office (U):

Army.

Point of Contact (U):

(U) LTCOL Johnnie Bone, Open Phone: (256) 722-1586.

Date Of Information (U):

(U) 29 June 1998

(U) Road Map Production Date: 23 June 2001