PlanetiQ

PlanetiQ is a Boulder, Colorado-based commercial weather intelligence company that operates a constellation of small satellites carrying the Pyxis GNSS Radio Occultation (GNSS-RO) receiver — a fourth-generation, radiation-hardened instrument with NASA mission heritage. The constellation measures atmospheric profiles by tracking GPS, GLONASS, Galileo, and BeiDou signals as they bend through Earth's atmosphere during satellite occultation events, retrieving temperature, pressure, humidity, and ionospheric electron density at 100-metre vertical resolution globally.

PlanetiQ's Pyxis receiver achieves signal-to-noise ratios of 1,500 V/V (60 dB-Hz) — approximately 7.5× higher than competing GNSS-RO instruments — enabling deep tropospheric penetration at low elevation angles and producing more accurate profiles through clouds and moisture-rich environments. The company has launched five satellites, with three operational in orbit, and holds contracts with NOAA (signed 2023) for operational weather data and USAF (STRATFI, $15M), as well as a $24.3M RODB-2 contract awarded by NOAA in September 2025.

GNSS-RO data from PlanetiQ's constellation feeds into numerical weather prediction (NWP) assimilation pipelines at major meteorological agencies, improving forecast accuracy with self-calibrating, bias-free measurements that require no ground-truth correction.