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.
Linked view: ROQuET quantum photonic processor.
Columns & coverage · 2 empty columns hidden
1 of 1 projects have values for the selected fields. 1–1 of 1 configuration rows shown. Projects without values are hidden.
— No verified value recorded · N/A Not applicable · TBD Not yet defined · Conflict Unresolved. Configurations remain separate. Hardware ratings and plans do not establish measured performance. Open Details & sources for evidence and coverage notes.
| Project / configuration | Compute hardware |
|---|---|
| ROQuET quantum photonic processorROQuET hosted payload on ION Passionate PaulaUniversity of Vienna / CNR-IFN / DLRProject status: In-orbit operation demonstrated | 6 optical modesUniversal programmable photonic integrated circuit in the hosted payloadReported specificationReported demonstration Xiphos Q7S with Xilinx Zynq-7000, ARM Cortex-A9 and FPGA logicROQuET payload controllerReported specificationprimary paper flown hardware description |
Compute hardware: 6 optical modes Universal programmable photonic integrated circuit in the hosted payload. Six optical modes describe the hardware architecture. Only three detector channels provided usable flight measurements; output analysis used routed 3x3 sub-unitaries. Supplement S2.3 and S9.16 disagree on the timing of the other detector failures. Reported demonstration. Included with these qualifications. Source observation: 2026-09-21. Supporting source ↗Compute hardware: Xiphos Q7S with Xilinx Zynq-7000, ARM Cortex-A9 and FPGA logic ROQuET payload controller. The flown controller described in supplement S3. This is the classical control computer for the photonic experiment, not a conventional GPU or a quantum throughput rating. primary paper flown hardware description. Included with these qualifications. Source observation: 2026-10-28. Supporting source ↗ | |
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.