# SpaceX SB-AMTI Award On **May 29, 2026** — two weeks before the IPO — [[Space Systems Command]] awarded [[SpaceX]] **$4.16 billion** to build the initial satellite constellation for **SB-AMTI**, the Space-Based Airborne Moving Target Indicator program. It is the largest single SpaceX award of 2026 and, by value, the largest publicly disclosed contract in the [[SpaceX Contracts]] ledger. The mission is to move a job that currently requires manned aircraft into orbit: detecting and tracking **aircraft and other airborne moving targets** anywhere on Earth, including over contested airspace where crewed platforms like AWACS cannot safely operate. The Space Force describes SB-AMTI as an interconnected **system-of-systems** — space-based sensors, secure communications links, and ground processing — with an initial constellation targeted to be **fielded by 2028**. ## Terms | Item | Detail | |---|---| | Announced | May 29, 2026 | | Awarding office | [[Space Systems Command]] | | Value | **$4.16B** | | Instrument | **Other Transaction Authority (OTA)**, competitively awarded | | Scope | Initial SB-AMTI satellite constellation | | Fielding target | 2028 | | Program family | [[Golden Dome]]-adjacent sensing architecture | ## This one is not the sole-source story — and that matters The vault's standing thesis on [[SpaceX Contracts]] is dependency: SpaceX wins because no one else can do the job. **SB-AMTI does not fit that pattern, and the record should say so plainly.** The award was made through a **competitive OTA** against a vendor pool, and the Space Force said at the time that it would issue further awards to other vendors. It did. On **August 4, 2026** — nine weeks later — the Space Force awarded a **second SB-AMTI task order worth $615M to three firms**, explicitly to "diversify the supplier base and test different technical approaches." [[Rocket Lab]] took **$397M** of it to build, launch and operate multiple "Flatellites," a flat-panel satellite design aimed at large constellations; **Systems and Technology Research (STR)** and an unnamed third company split the balance. So the honest reading is a **contested program in which SpaceX won the anchor tranche**, not a program with one possible supplier. The ratio is still lopsided — **$4.16B to SpaceX versus $615M across three competitors, roughly 6.8:1** — but lopsided is a different claim than captive, and the distinction is worth preserving precisely because the vault makes the stronger claim elsewhere. Where the sole-source argument genuinely holds is launch ([[SpaceX NSSL Phase 3 Lane 1 Awards]], [[SpaceX NSSL Phase 3 Lane 2 Awards]]) and the data-transport backbone ([[SpaceX SDN Backbone Award]]). It does not hold here. ## Significance - **Golden Dome money, arriving as sensing rather than interception.** SB-AMTI is part of the architecture underneath [[Golden Dome]], whose cost estimate has grown to roughly **$185B**. Most public argument about Golden Dome concerns interceptors; the contracts actually being signed are for **sensors and data transport**. SB-AMTI plus the SDN backbone is the sensing-and-plumbing layer, and SpaceX now holds the anchor position in both. - **Timing against the listing.** The award landed **May 29**, fourteen days before the **June 12** IPO — inside the window when SpaceX was marketing itself to public investors. A $4.16B government award is a material fact for a prospectus; it also means the first outside shareholders bought into a revenue base that had just been enlarged by a Pentagon decision. See [[SpaceX IPO Filing]], [[Defense Tech Conflicts of Interest]]. - **Surveillance scope.** A constellation that can track airborne movement anywhere on Earth is a persistent global surveillance asset operated by a publicly traded company whose controlling shareholder holds strong political commitments. The oversight question here is not procurement fairness — the competition was real — but **who operates the sensor and under what accountability**, the same question raised by [[SpaceX Starshield]]. - **The OTA instrument.** Both major 2026 Space Force awards to SpaceX used **Other Transaction Authority**, a mechanism designed to speed prototyping by sidestepping standard federal acquisition regulation. OTAs carry lighter competition requirements, thinner protest rights, and less public disclosure than conventional contracts. That is a pattern worth tracking across the ledger, independent of any individual award's merits. ## Connects to - [[SpaceX SDN Backbone Award]] — the other May 2026 mega-award; together they are sensing plus transport - [[SpaceX NSSL Phase 3 Lane 1 Awards]] — the launch-side companion; "Sensing and Targeting" payloads there are the SB-AMTI family's ride to orbit - [[Golden Dome]] — the architecture this feeds - [[SpaceX Contracts]] — consolidated ledger - [[Defense Tech Conflicts of Interest]] — the oversight frame - [[SpaceX Watch Log]] — running feed ## See Also - [[SpaceX]] — company page - [[SpaceX Dossier]] — dossier front door - [[SpaceX Events]] — index of SpaceX events/deals - [[U.S. Space Force]] · [[Space Systems Command]] - [[Rocket Lab]] - [[Deals Hub]]