Tomorrow.io Hardens Global Forecasting via DeepSky Constellation

Terminal Entry: Atmospheric Intelligence Update

Tomorrow.io is moving to resolve the persistent data gap in global meteorological modeling. According to Payload, the company has finalized the instrument suite for DeepSky, its next-generation constellation designed for real-time, global atmospheric monitoring.

While existing models often rely on interpolation to fill blanks in data-sparse regions, DeepSky aims to provide direct measurements. The constellation will consist of roughly 12 satellites, each weighing 800kg, built on York Space Systems' M-CLASS platform under a $187M contract. The objective is continuous monitoring of every terrestrial and oceanic coordinate, addressing the critical lack of real-time data in the Global South and open seas.

The DeepSky Sensor Suite

The mission utilizes five specialized instruments to map the vertical structure of the atmosphere:

• ▸Precipitation Radar: Active scanning to locate rain within the atmospheric column and track storm updrafts.
• ▸Hyperspectral Microwave Sounders: Penetrating cloud cover to map temperature and moisture baselines.
• ▸Infrared and Visible Imagers: Capturing thermal signatures for surface monitoring and wildfire detection.
• ▸GNSS Radio Occultation: Utilizing atomic clocks to resolve high-precision vertical profiles for fleet calibration.
• ▸GNSS Reflectometry: Measuring surface winds within the high-moisture cores of hurricanes where other sensors fail.

Cofounder Rei Goffer noted that forecasts are limited by their inputs; DeepSky is designed to replace statistical assumptions with hard physical observations. The company expects to deploy the constellation within "low single-digit years," maintaining its Gen-1 fleet until the new hardware reaches operational status. The move is also positioned as a strategic effort to ensure Western space-sensing capabilities remain competitive with rapid Chinese expansion in the sector.