Space Lasers to Speed Earth Data Back to Ground

LatConnect 60 (LC60) has entered into a commercial agreement with Transcelestial for an optical communications terminal and access to its ground station network. This contract, effective August 20, 2026, will facilitate high-capacity data transport for LC60's SWIRSAT-1 mission.

The agreement includes a terminal designed for up to 10Gbps rates and access to Transcelestial's expanding ground network. This service is intended to swiftly move mission imagery from spacecraft to LC60's processing and customer-delivery environment following commissioning.

Dr. Mohammad Danesh of Transcelestial highlighted that this solution provides a high-capacity optical path and ground network as a service, eliminating spectrum licensing and ground segment development for satellite operators. Venkat Pillay of LatConnect 60 emphasized that this integration treats the sensor and data path as inseparable, crucial for delivering SWIR imagery within useful timeframes.

This partnership marks the second Australian mission to utilize Transcelestial's optical downlink, following its integration with Gilmour Space. A Transcelestial terminal is already operational on the 6U StarLab mission, with ground stations in Singapore and Spain, and plans for five to six more by the end of 2026.

LC60 is developing a high-resolution SWIR Earth Observation constellation, with two SWIRSATs scheduled for launch in Q1 2027 and an 18-satellite constellation planned by 2029. The SWIRSAT initiative is supported by the Australian Space Agency and the Government of Western Australia.

Optical links offer significant advantages over traditional RF downlinks, which are spectrum-constrained and costly per gigabyte. For instance, a 10Gbps optical service can move approximately 500GB in a typical seven-minute satellite pass, compared to about 5GB for a 100 Mbps X-band link. Additionally, optical links are more secure and resistant to jamming, with Transcelestial implementing post-quantum cryptography.

Transcelestial's network design supports high availability through multiple ground station locations, allowing for rerouting in case of weather disruptions. Adaptive data rates and forward error correction further enhance throughput. As LC60 expands its constellation to 18 satellites, the same ground network can accommodate additional missions without requiring new infrastructure.