Hyperspectral payload
A custom imaging spectrometer capturing 100+ contiguous bands per pixel.
Esper Satellite Imagery — Melbourne, Australia
See what's underground — from orbit.
Esper is a builder and operator of remote sensing satellites capable of high-resolution hyperspectral imagery. We map the mineral fingerprint of the Earth's surface — so you can survey the ground before you ever break it.
100+ Bands · 400–2000 nm · ~30 m GSD · Daily revisit (2026 roadmap)
What we do
Hyperspectral imaging, built low-cost and launched often.
Most satellites see in a handful of broad colors. Esper's microsatellites resolve 100+ contiguous spectral bands from 400 to 2000 nanometers — across the visible, near-infrared and shortwave-infrared. That continuous signal is a chemical fingerprint: every mineral, crop and material reflects light its own way.
We design, build and operate the whole stack — payload to orbit to analytics — so explorers and operators can survey minerals from a computer, long before a single drill turns.
- VNIR–SWIR
- ~30 m ground resolution
- Built & operated in-house
The numbers
Resolution you can act on.
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Bands
Contiguous spectral channels
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nm (from 400)
VNIR–SWIR range
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GSD
Ground sample distance
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Satellites
Target constellation, daily revisit
The technology
One continuous spectrum. A hundred ways to read the ground.
Where a multispectral sensor samples a few wide bands, Esper captures a dense, continuous curve. Subtle absorption features — invisible to the eye and to legacy satellites — reveal alteration zones, clays, iron oxides and pathfinder minerals that point toward what lies beneath.
VNIR + SWIR sensing
400–2000 nm coverage to resolve mineral and chemical signatures.
On-orbit calibration
Continuous radiometric calibration keeps every spectrum analysis-ready.
Missions / Flight heritage
From a rainbow in orbit to a four-leaf constellation.
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Over The Rainbow 1. First Esper hyperspectral demonstrator on orbit.
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Over The Rainbow 2. Expanded spectral payload, validated VNIR–SWIR capture.
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Flagship constellation. Four dedicated SWIR payloads; first launches 2026.
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Scaling to 18 satellites for daily global revisit.
Who it's for
Built for the people who read the ground.
Critical minerals & mining
Map alteration and pathfinder minerals to focus exploration and de-risk drill targets.
Learn moreDefense & intelligence
Persistent, wide-area material detection and change monitoring from orbit.
Learn moreEnergy
Survey terrain, monitor sites and infrastructure across remote operations.
Learn moreAgriculture
Track crop health, soil and stress through the full spectral signature.
Learn more
Four Leaf Clover
Four payloads. One mission: daily sight of the whole planet.
Our flagship constellation puts four SWIR payloads in orbit, the first stage of a path to eighteen satellites and daily global revisit — turning hyperspectral survey from a campaign into a subscription.
See the roadmapThe team
Forbes 30 Under 30Engineers, geologists and operators.
A Melbourne team building satellites end-to-end — recognized on the Forbes 30 Under 30 list.
Backed by
Investors who see what's coming.
Techstars — 2023
- Stellar Ventures
- Day One Ventures
- Paspalis
- Hejaz
- 776 Foundation
Get started
Know your ground before you break it.
Survey minerals from your computer before going on-ground. Request access to Esper hyperspectral data.