Radio Occultation Observations and Processing from Spire's CubeSat Constellation
Presenter:
Vladimir Irisov
Spire Global, Inc.
Spire Global, Inc.; A.M.Obukhov Institute of Atmospheric Physics, Russia; GPS Solutions, Inc.
Poster
Spire Global, Inc. is a leading player in the nanosatellite sector, and the first to provide commercial, low-cost GNSS radio occultation measurements to support critical weather data for numerical weather prediction. Spire has ambitious goals of collecting over 100,000 radio occultation profiles per day, providing robust coverage of atmospheric measurements over the entire planet.
This talk will focus on the current capabilities of Spire’s growing satellite constellation and radio occultation processing system. We will describe the collection of radio occultation observations from the GPS, GLONASS, Galileo, and QZSS GNSS constellations from our growing constellation of 3U CubeSats. We will also describe the processing system for precision orbit determination of our LEO satellites and inversion of radio occultation profiles. We will discuss the quality of the derived products, including new baseline statistics against the GFS numerical weather prediction model for radio occultation profiles and analyses by external users of Spire data. We will also discuss our neural network application to the problem of wet profile retrieval. Finally, we will outline the plans for our expanding GNSS-RO constellation in the future.
Poster in PDF:
