United States · Hosted edge computing demonstrations
Sidus LizzieSat computing program
This project focuses on testing edge computing aboard host spacecraft.
Sidus’s LizzieSat computing program includes a Maris-Tech payload on LizzieSat-4 and Fortis VPX–Maxima architecture on LizzieSat-5. Sidus reported environmental testing and integration in 2026, then moved LizzieSat-5 to a joint launch with LizzieSat-4 to expand Fortis qualification. These planned computing demonstrations remain distinct from Lonestar’s hosted storage service.
Sidus Space · Expanded qualification; joint launch planned
Scope: Mission-specific processing · Processing primarily serves the mission’s own sensing, navigation or data workload.
Figures retain their disclosed units and scope. Launched hardware does not establish demonstrated performance; targets may change. Not disclosed means no figure in the reviewed sources.
Environmental testing of LizzieSat-5, including vibration testing at Element U.S. Space & Defense in Orlando; the September 28 release identifies the previously unnamed next spacecraft.
Completed qualification-service role disclosed by Sidus. Direct procurement terms and price are unknown; vibration testing does not establish in-orbit qualification.
Announced 16 Jun 2026 · Evidence checked 30 Sept 2026
SpaceX Bandwagon-6 named for the joint LizzieSat-4 and LizzieSat-5 launch, targeted no earlier than April 2027; supersedes the Transporter-18 plan for LizzieSat-5.
Named future launch-provider role, subject to qualification, integration and rideshare readiness. The source does not establish the direct legal buyer, price or completed launch. The original June role announcement predates the September 28 schedule revision.
Announced 16 Jun 2026 · Evidence checked 30 Sept 2026
Integration of Maris-Tech’s AI-based edge-computing payload for the planned LizzieSat-4 mission.
Sidus disclosed an integration milestone but did not identify a buyer, contract value, procurement terms or the payload’s commercial form. LizzieSat-4 remained a planned launch.
Announced 14 May 2026 · Evidence checked 25 Sept 2026
LizzieSat-4 and LizzieSat-5 are targeted to launch together on SpaceX Bandwagon-6 no earlier than April 2027, subject to qualification, integration and rideshare readiness.
Manual review 29 Oct 2026. Sidus's September 28 release confirms distinct LizzieSat-4 Maris-Tech and LizzieSat-5 Fortis configurations, a joint Bandwagon-6 target no earlier than April 2027 and planned mid-inclination orbit. Primary body last observed 22 Oct, 21:34 UTC. Source monitoring: ongoing. Source collection and substantive profile review are separate checks. Plans and dates may change.
Launch day, remaining qualification, integration readiness and measured in-orbit compute performance are not confirmed.
Fortis GPU model/count, throughput, dedicated IT power, paid capacity and financial terms remain undisclosed.
LizzieSat-4 hosts a separate Maris-Tech computing payload; this does not establish Maris-Tech as supplier of the Fortis architecture.
LizzieSat-5 is the spacecraft moved from Transporter-18 for expanded Fortis qualification. Sidus buses also host Lonestar storage payloads; hosting and program counts require asset-level deduplication.
Project updates
Verified announcements and milestones linked to this project, newest first.
Sidus aligned LizzieSat-4 and LizzieSat-5 with SpaceX Bandwagon-6. LizzieSat-5 moves from Transporter-18 to allow expanded Fortis qualification; launch remains subject to qualification, integration and rideshare readiness.
In its July 21, 2026 shareholder letter, Sidus said initial commercial availability of Fortis VPX was anticipated in early 2027, subject to final integration and customer qualification. The company described a shift toward mission computing, edge AI, satellite manufacturing and recurring software and support, while Fortis and Orlaith evaluations and LizzieSat production continued.
