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SPACE DATA CENTERS
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SPACE COMPUTINGEvidence. Agreements. Progress.
PROJECT COMPARISON

Space Data Centers Database

Search and compare space data center projects and related orbital computing demonstrations, including developers, technical specifications, suppliers, agreements and milestones. Follow each commitment to its original announcement.

Catalog: 96 projects. 13 proposal / study · 33 development · 13 launched · 20 demonstrated · 4 operating · 10 historical · 3 uncertain. These are project classifications, not spacecraft counts or verified commercial capacity.

37 projects classified as launched, demonstrated or operating: 29 reviewed, 8 with review limits or awaiting review. Each project appears in one classification.

Which space data center projects have launched?

PROJECTS & RELATIONSHIPS

Compare the work behind each project.

FinancingSuppliers
1 projects matching1 with supplier records0 no supplier record
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Linked view: ROQuET quantum photonic processor.

1–8 of 8 relationship records. Each row is one underlying record, including records linked to several projects. Roles and agreement evidence are separate.

Projects, organizations, roles, scope, commitment and supporting evidence.
Project / associated organizationOrganizationRoleComponent / service scopeCommitment / supporting evidence
ROQuET quantum photonic processorUniversity of ViennaLASER COMPONENTSSupplierPhotonic computing components · Sensors & monitoring

The detector board uses LASER COMPONENTS SAP500 silicon single-photon avalanche diodes. Six detector positions were installed; only three channels yielded usable flight measurements.

Details & project milestones

The detector board uses LASER COMPONENTS SAP500 silicon single-photon avalanche diodes. Six detector positions were installed; only three channels yielded usable flight measurements.

This records an explicitly identified, implemented role in the flown research payload; it is not evidence of a separately announced paid contract. The direct legal buyer, contract execution/selection date, price and procurement terms are not disclosed. September 21, 2026 is the paper submission date, not the procurement date. The paper disagrees on whether the two additional unusable channels failed before or during launch; no failure date or supplier liability is inferred.

Disclosed buyer: Not disclosed.

Associated organization: University of Vienna.

ROQuET quantum photonic processor: In-orbit operation demonstrated

Next project milestone: No next mission milestone disclosed in the September 2026 paper.

This is a project target, not a supplier delivery commitment.

Evidence checked 27 Sept 2026.

Role confirmedSource ↗
ROQuET quantum photonic processorUniversity of ViennaQontrolSupplierPhotonic computing components

ROQuET’s programmable 28-channel current-source board is identified as Qontrol; it controls the circuit’s 27 thermal phase shifters with 16-bit precision.

Details & project milestones

ROQuET’s programmable 28-channel current-source board is identified as Qontrol; it controls the circuit’s 27 thermal phase shifters with 16-bit precision.

This records an explicitly identified, implemented role in the flown research payload; it is not evidence of a separately announced paid contract. The direct legal buyer, contract execution/selection date, price and procurement terms are not disclosed. September 21, 2026 is the paper submission date, not the procurement date.

Disclosed buyer: Not disclosed.

Associated organization: University of Vienna.

ROQuET quantum photonic processor: In-orbit operation demonstrated

Next project milestone: No next mission milestone disclosed in the September 2026 paper.

This is a project target, not a supplier delivery commitment.

Evidence checked 27 Sept 2026.

Role confirmedSource ↗
ROQuET quantum photonic processorUniversity of ViennaSpaceXSupplierLaunch capacity

SpaceX Falcon 9 launched the ION SCV Passionate Paula host and its ROQuET payload on Transporter-14 on June 23, 2025.

Details & project milestones

SpaceX Falcon 9 launched the ION SCV Passionate Paula host and its ROQuET payload on Transporter-14 on June 23, 2025.

This records an explicitly identified, implemented role in the flown research payload; it is not evidence of a separately announced paid contract. The direct legal buyer, contract execution/selection date, price and procurement terms are not disclosed. September 21, 2026 is the paper submission date, not the procurement date.

Disclosed buyer: Not disclosed.

Associated organization: University of Vienna.

ROQuET quantum photonic processor: In-orbit operation demonstrated

Next project milestone: No next mission milestone disclosed in the September 2026 paper.

This is a project target, not a supplier delivery commitment.

Evidence checked 27 Sept 2026.

Role confirmedSource ↗
ROQuET quantum photonic processorUniversity of ViennaXiphos TechnologiesSupplierProcessors / accelerators · Avionics / integrated electronics

The flown payload is controlled by a Xiphos Q7S single-board computer using a Xilinx Zynq-7000 SoC with ARM Cortex-A9 and FPGA logic, running a custom Linux/Yocto and Python environment.

Details & project milestones

The flown payload is controlled by a Xiphos Q7S single-board computer using a Xilinx Zynq-7000 SoC with ARM Cortex-A9 and FPGA logic, running a custom Linux/Yocto and Python environment.

This records an explicitly identified, implemented role in the flown research payload; it is not evidence of a separately announced paid contract. The direct legal buyer, contract execution/selection date, price and procurement terms are not disclosed. September 21, 2026 is the paper submission date, not the procurement date.

Disclosed buyer: Not disclosed.

Associated organization: University of Vienna.

ROQuET quantum photonic processor: In-orbit operation demonstrated

Next project milestone: No next mission milestone disclosed in the September 2026 paper.

This is a project target, not a supplier delivery commitment.

Evidence checked 27 Sept 2026.

Role confirmedSource ↗
ROQuET quantum photonic processorUniversity of ViennaIntegrated OpticsSupplierPhotonic computing components

ROQuET’s photon-pair source uses a commercial 405 nm fibre-coupled continuous-wave pump-laser module explicitly identified as Integrated Optics hardware.

Details & project milestones

ROQuET’s photon-pair source uses a commercial 405 nm fibre-coupled continuous-wave pump-laser module explicitly identified as Integrated Optics hardware.

This records an explicitly identified, implemented role in the flown research payload; it is not evidence of a separately announced paid contract. The direct legal buyer, contract execution/selection date, price and procurement terms are not disclosed. September 21, 2026 is the paper submission date, not the procurement date. Additional evidence for this same role: https://integratedoptics.com/blog/news/io-laser-enters-the-era-of-quantum-space-research. The July 14, 2025 supplier release describes the same University of Vienna 405 nm MATCHBOX laser launched June 23, 2025. The research paper explicitly names Integrated Optics and the Matchbox module. July 14 is the earliest retained supplier disclosure, not a procurement date.

Disclosed buyer: Not disclosed.

Associated organization: University of Vienna.

ROQuET quantum photonic processor: In-orbit operation demonstrated

Next project milestone: No next mission milestone disclosed in the September 2026 paper.

This is a project target, not a supplier delivery commitment.

Evidence checked 27 Oct 2026.

Role confirmedSource ↗
ROQuET quantum photonic processorUniversity of ViennaD-OrbitHostPayload integration · Mission operations

D-Orbit hosted ROQuET on ION SCV Passionate Paula for Skytrail, providing payload power, command execution, timing and data/file exchange through the host flight payload computer.

Details & project milestones

D-Orbit hosted ROQuET on ION SCV Passionate Paula for Skytrail, providing payload power, command execution, timing and data/file exchange through the host flight payload computer.

This records an explicitly identified, implemented role in the flown research payload; it is not evidence of a separately announced paid contract. The direct legal buyer, contract execution/selection date, price and procurement terms are not disclosed. September 21, 2026 is the paper submission date, not the procurement date. Additional evidence for this same role: https://cdn.sanity.io/files/r5mwia0y/production/c1f3581bb047d1b7e876b0f6bf29889fc747dc29.pdf. The June 24, 2025 carrier release and September 21, 2026 research paper describe the same ROQuET payload on Skytrail. June 24 is the earliest retained hosting disclosure, not a contract date.

Disclosed buyer: Not disclosed.

Associated organization: University of Vienna.

ROQuET quantum photonic processor: In-orbit operation demonstrated

Next project milestone: No next mission milestone disclosed in the September 2026 paper.

This is a project target, not a supplier delivery commitment.

Evidence checked 27 Oct 2026.

Role confirmedSource ↗
ROQuET quantum photonic processorUniversity of ViennaCNR Institute for Photonics and Nanotechnologies (CNR-IFN)Research participantProcessors / accelerators

CNR Milano / CNR-IFN developed the programmable photonic chip for the ROQuET quantum-computing experiment in collaboration with the University of Vienna.

Details & project milestones

CNR Milano / CNR-IFN developed the programmable photonic chip for the ROQuET quantum-computing experiment in collaboration with the University of Vienna.

The official D-Orbit mission booklet, printed pages 5–6, explicitly describes this joint research role. No paid procurement, legal buyer, agreement signature date or value is disclosed.

Disclosed buyer: Not disclosed.

Associated organization: University of Vienna.

ROQuET quantum photonic processor: In-orbit operation demonstrated

Next project milestone: No next mission milestone disclosed in the September 2026 paper.

This is a project target, not a supplier delivery commitment.

Evidence checked 27 Sept 2026.

PartnershipDisclosure date not suppliedSource ↗
ROQuET quantum photonic processorUniversity of ViennaGerman Aerospace Center (DLR)Research participantPayload integration · Sensors & monitoring

DLR supplied the onboard camera and contributed space-mission expertise, vacuum-testing facilities and cleanrooms for ROQuET assembly and qualification.

Details & project milestones

DLR supplied the onboard camera and contributed space-mission expertise, vacuum-testing facilities and cleanrooms for ROQuET assembly and qualification.

The official D-Orbit mission booklet, printed pages 5–6, explicitly describes this joint research role. No paid procurement, legal buyer, agreement signature date or value is disclosed.

Disclosed buyer: Not disclosed.

Associated organization: University of Vienna.

ROQuET quantum photonic processor: In-orbit operation demonstrated

Next project milestone: No next mission milestone disclosed in the September 2026 paper.

This is a project target, not a supplier delivery commitment.

Evidence checked 27 Sept 2026.

PartnershipDisclosure date not suppliedSource ↗
Supplier work coverage by category

Distinct projects with a disclosed supplier or host in each work category. Investors, research participants and other partnership roles are excluded from supplier coverage. Click a count to see the matching projects. Columns overlap; do not add them together.

Component / serviceContract awardedSupplier selectedDevelopment agreementLaunch capacity reservedPreliminary agreementPartnershipAny supplierNo supplier
Power
↳ Electrical power system
↳ Batteries
↳ Solar arrays
Spacecraft & integration
↳ Satellite bus
↳ Payload integration
Compute & storage
↳ Storage payload
↳ Processors / accelerators
↳ Photonic computing components
Thermal control
↳ Radiators / cooling
Communications
↳ Optical links
Launch
↳ Launch capacity
↳ Launch integration
Operations
↳ Mission operations
↳ Ground stations & ground segment
↳ Deployable structures
↳ Payload industrial design
↳ Flight / payload software
↳ Data services
↳ Electric propulsion
↳ Avionics / integrated electronics
↳ In-space manufacturing
↳ Spacecraft protection systems
↳ Attitude control components
Sensors & monitoring
↳ Radiation sensors
↳ Lunar payload delivery
Commercial services
↳ Cloud capacity & advisory
↳ Technical training & capability transfer
Research & feasibility studies

Technical specifications retain the source’s original units and evidence status. Hardware counts, compute rates and power are not equivalent; launched hardware does not establish demonstrated performance. Supplier counts include suppliers and hosts only, reflect current filters and cover this directory, not the entire market. “No record” means no disclosure captured; it does not mean the work is unawarded. Latest developments use source dates, not routine review or collection dates.