Printed from https://fiscalreceipts.com/program/SDN000/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Space Digital Integrated Network (SDIN)
Budget figures
FY2026 award data is a partial year — USAspending reports awards on a rolling basis, and this corpus runs through 2026-09-04. why partial FY2026 data? →
Budget trajectory
| Fiscal year | Amount |
|---|---|
| FY24 | $0J-book detail · PB2026 |
| FY25 | $0J-book detail · PB2026 |
| FY26 | $4.98MP-1 TOA · PB2026 |
Decade view
P-1/R-1 workbook TOA basis, shown compact in $B/$M (the workbook records USD thousands); each figure cites its own President's Budget edition
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY26 |
|---|---|
| Request | $4.98M |
blank = series not published for this year; – = absent from that edition.
Program lineage
No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.
Description
Description — Space Digital Integrated Network (SDIN)
The Air Force created the Space Digital Integrated Network (SDIN) in the 1980's as the Air Force Space Command (AFSPC) Space Defense Interface Network. While it was built to support communication between Missile Warning/Missile Track (MW/MT) sensors and Command and Control (C2) nodes to support nuclear deterrence and missile defense of the homeland, it has grown to support every Space Force mission area with connections to almost all Space Force operating locations. This includes Space Domain Awareness (SDA) sensors, MILSTAR Family of Advanced Beyond Line-of-Sight Terminals (FAB-T) communications, Space Based Infrared System (SBIRS) ground segment communications, intra-base and inter-base communication between SOCs and other force elements, Defense Red Switch Network (DRSN) long local communications, Land Mobile Radios, and more.
Justification
Justification — Space Digital Integrated Network (SDIN)
This program is a new start. This program is an FY 2026 New Start. Space Digital Integrated Network (SDIN) - Modernization: The Air Force modernized some of legacy 1980's SDIN hardware in 2012 to mitigate obsolescence, but some of the equipment is once again nearing end of life. The Space Force needs to modernize the network technology to ensure continuity of operations. Starting in FY26, the Space Force will perform architectural analysis, hardware procurement, integration, and installation activities to modernize this critical network.
Budget line items(workbook-cited)
P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Procurement, Space Force | F | FY26 Disc. Request | $4.98M |
| Procurement, Space Force | F | FY26 Total | $4.98M |
Budget Details(R-2/P-40 facts)
J-book detail basis (R-2/P-40, USD millions) · PB2026 — a different accounting basis from the P-1/R-1 workbook TOA above; where the two disagree, the reconciliation strip under Budget figures shows both.
Wider than this screen — swipe the table sideways for the remaining fiscal-year columns.
| Project | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|
| Program Element | $0 | $0 | $4.98M | $4.98M |
Follow the dollar
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 312 of 1,938 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high or medium confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying mentions
10 mentions from the Senate LDA disclosure database.
Licensing, competition, trade, and government procurement. Health IT procurement; health reform and related IT issues.…
Licensing, competition, trade, and government procurement. Health IT procurement; health reform and related IT issues.…
Licensing, competition, trade, and government procurement. Health IT procurement; health reform and related IT issues.…
Licensing, competition, trade, and government procurement. Health IT procurement; health reform and related IT issues.…
Licensing, competition, trade, and government procurement. Health IT procurement; health reform and related IT issues.…
Licensing, competition, trade, and government procurement. Health IT procurement; health reform and related IT issues.…
Licensing, competition, trade, and government procurement. Health IT procurement; health reform and related IT issues.…
Digital Trade Policies in Trade Agreements. U.S.-China Trade Relations.
Digital Trade Policies in Trade Agreements. U.S.-China Trade Relations.
Licensing, competition, trade, and government procurement. Health IT procurement; health reform and related IT issues.…
Oversight
Department-level designation (not specific to this program)
GAO lists 5 high-risk areas for DOD as a whole. That designation covers the department, not Space Digital Integrated Network (SDIN). No program-specific GAO finding for this line is in the ingested data. See the DOD oversight record.
Program dossier
No research dossier for this program — dossiers cover 50 of 1,938 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →
Primary sources
Open any budget figure for its exact receipt. Verified line items lead with the highlighted government PDF; original spreadsheets download with their budget edition and exhibit in the filename.
Budget totals · TOA sources
FY2026 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · W1024
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_P-1_Procurement.xlsx.
Detailed budget justification
The related TOA spreadsheets above use a different accounting basis from R-2/P-40 detail. Their amounts are not assumed to match these detailed sources.
FY2026 Space Force Procurement · www.saffm.hq.af.mil
PDF page 137