Open atmospheric data from Casey, Illinois

Aerostratospheric is an Illinois nonprofit and the home of Midwest Stratospheric Data Systems. We build lightweight high altitude balloon platforms, run a ground station in Casey, Illinois, and publish what we collect through UOGW (Unified Open Global Weather).

Use the data

1. xDataHub, our public open atmospheric data dashboard: the Casey station (KILCASEY47), NASA GLOBE air temperatures from the same site, a radiation index, NOAA KILX soundings beside our own flights, and UOGW boards.
2. UOGW API docs and the developer overview. The public tier needs no key. Attribution required; curated indexes CC BY 4.0.
3. Our Hugging Face datasets and models.
4. STEM program and xPlorer, our signed in learning dashboard with free 1 hour and 5 hour STEM certificates.
5. Prototypes such as xAirship, a 6 m (20 ft) PVC aerostat on our xPrototypes bench.

Flown archive

Sep 12, 2026: x1Albatross envelope check, burst at 59,000 ft. Sep 19, 2026: X2Griffon maiden flight, burst at 90,356 ft. Records: midwestsds.com/flights.html. Launches are private science missions; the archive and data are public.

Work with us

We are looking for collaborators: data sharing, joint research, classroom projects, and tooling. Email space@aerostratospheric.com or book a 15 minute intro.