Orbital Sentry Develops Geostationary Wildfire Monitoring
The Washington startup is building an infrared satellite system designed to watch the same landmass continuously for active fires.
Updated on Nov. 2, 2026 in Geography
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Orbital Sentry, an Earth observation startup based in Washington, is commercializing fixed geostationary orbit platforms for wildfire detection. Its Fire Sentry payload places mid-wave and long-wave infrared sensors at 35,786 kilometers altitude.
Why it matters
Continuous observation from geostationary orbit could allow fire detection and tracking of active perimeters without the revisit gaps of lower-orbit satellites. The venture recently closed a pre-seed round led by Ridgeline.
The Fire Sentry payload carries mid-wave and long-wave infrared sensors at 35,786 kilometers altitude, with onboard algorithms filtering transient false alarms. Independent validation of detection performance has not been reported.
The players
Orbital Sentry
Orbital Sentry is an Earth observation startup based in Washington that is commercializing geostationary satellite platforms for wildfire detection.
Ridgeline
Ridgeline is the investment firm that led the venture's pre-seed financing round.
The details
Orbital Sentry is building fixed geostationary platforms whose payload matches Earth's rotational velocity to observe the same landmass continuously. The company plans an initial spacecraft deployment establishing a monitoring cone over the North American continent, with additional nodes to follow.
Timeline
November 2, 2026: Article published on the company's geostationary wildfire monitoring development
Big Picture
Geostationary weather satellites such as the GOES series have long used fixed orbits to monitor the same hemisphere continuously. Orbital Sentry applies that same orbital logic to dedicated wildfire infrared detection over the western United States.
If the system performs as described, residents in fire-prone areas of the western United States could receive faster detection of active fires. Commercial timelines and availability for public agencies have not been announced.
The takeaway
Persistent geostationary monitoring could change how quickly fires are spotted in remote terrain. Readers tracking wildfire technology should watch for independent performance data as the first spacecraft launches.
Further reading
Explore more Geography coverage for context on how satellite monitoring shapes understanding of the western landscape.
Source note: This article includes information reported by Satnews.
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