Relay SA-07 realigned at Dione
Relay SA-07 completed two scheduled maneuvers during the September window. The current transfer timetable remains in effect.
Rotating showcase of four featured sites: Io, Jovian window; Dione, Saturnian backbone; Sea of Tranquility, surface network; optical terminal, precision pointing.
Network layer
Every route begins locally
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Local fiber
Surface fiber connects settlements on each body. The first span stays on the ground, where it can be serviced without waiting for an orbital window.
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Directed optical links
Laser terminals operate at 1550 nm across vacuum paths with clear line of sight. Aperture, pointing accuracy, and range are set for each route.
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Orbital relays
Relay stations carry traffic across gaps in local coverage. A route is available while both terminals remain in view.
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Scheduled transport
Data is forwarded in bundles against published visibility windows. Local caches hold traffic until the next path opens.
Link control
Designed around orbital geometry
Pointing and acquisition
Before traffic moves, each optical terminal acquires its counterpart and maintains alignment with sub-microradian correction.
Visibility planning
Transfer windows are calculated from orbital ephemerides and released one cycle ahead.
Cache and replication
Nodes keep local copies of active bundles and replicate critical data to adjacent routes.
Autonomous maintenance
AI agents monitor alignment, thermal state, and link integrity, then schedule maintenance within the next viable window.
Backbone capacity
Capacity across the backbone
The 100 Gb/s figure is the sum of the backbone’s trunk segments. Individual routes are provisioned against their own visibility windows and traffic profiles.
- Dione 28 Gb/s
- Calypso 16 Gb/s
- Io 34 Gb/s
- Sea of Tranquility 22 Gb/s
One-way light-time to Earth
| Site | Host body | One-way light-time to Earth | Network model |
|---|---|---|---|
| Sea of Tranquility | Moon | about 1.3 s | Local fiber and lunar relays |
| Io | Jupiter | about 35–52 min | Orbital relay and Jovian windows |
| Dione | Saturn | about 71–88 min | Saturnian backbone and cache |
| Calypso | Saturn | about 71–88 min | Transit node and scheduled replication |
Node operations
Support at the node
Each node hosts a local AI agent that diagnoses faults against its own operational record. Work that depends on another moon is queued for the next available transmission window.
Current support status
Local diagnostics:
Available
Cache replication:
Scheduled
Remote escalation:
Next available window
Partner roster
Operating partners
FastCable shares relay capacity, cache routes, and terminal operations with a small group of specialist operators.
- Amanegi Relay K.K. Relay host Dione relay capacity and station-keeping
- Kurosora Link K.K. Interconnect operator Io–Calypso interconnect capacity
- Mizuhara Lattice K.K. Cache peer Cache replication for the Sea of Tranquility
- Hoshinami Works K.K. Maintenance operator Optical terminal service and alignment
Operations log
Network bulletins
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Second lunar cache replica enters service
A second replica is now serving the Sea of Tranquility network. Verification continues through the next synchronization window.
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Io transfer windows revised
The next Jovian window plan updates the departure sequence for Io–Calypso transit. Existing bundles will be resequenced at their origin nodes.
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Second transit span connected at Calypso
The new span has been brought into the Calypso node. Final activation follows completion of pointing checks.