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) Space Defense Interface Network (SDIN)

Description (U):

(U) The Space Defense Interface Network (SDIN) provides the Space Surveillance C3 Interface via the Defense Satellite Communications System (DSCS) and non-DSCS leased data/voice communications that link Cheyenne Mountain's Space Defense Operations Center (SPADOC) to worldwide sensor sites and satellite owners/operators. SDIN provides real-time exchange of satellite orbital parameters and tasking data.

User Impact (U):

(U) Loss of this capability would have a significant impact on the Space Surveillance Network (SNN).

Programmatics (U):

(U) Operational.

• (U) USSPACECOM: Funding Source.

Images (U):

(U) None.

Related Initiatives (U): None.

Related Requirements (U): None.

Related Categories (U):

This Table Is Unclassified.

Name	Title
C2 and Data Handling	Command and Control (C2) and Data Handling

Road Map Placements (U):

This Table Is Unclassified.

Name	Title
SPACE CONTROL: S.S. NETWORK	SPACE CONTROL: SPACE SURVEILLANCE NETWORK

Requirements, Funding and Additional Hotlinks (U):

(U) None.

Lead Office (U):

Air Force.

Point of Contact (U):

(U) Chuck Forth, Open Phone: (719) 556-9349.

Date Of Information (U):

(U) 26 February 1998

(U) Road Map Production Date: 23 June 2001