EnMAP Hyperspectral Imager (HSI)
OHB System AG
Pushbroom hyperspectral imaging instrument covering 420–2450 nm in 228 spectral bands at 30 m GSD, built for ESA/DLR's EnMAP global environmental monitoring satellite.
Key figurescomparable across the catalogue
- Mass
- 553 kg
- TRL
- 9
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Spectral range
- 420–2450 nm (VNIR + SWIR combined)
- Spectral bands
- 228 bands (VNIR ~5 nm sampling; SWIR ~10 nm sampling)
- Ground sample distance
- 30 m
- Swath width
- 30 km
- Orbit altitude
- ~650 km sun-synchronous
- Repeat cycle
- 27 days (exact repeat)
- Daily coverage
- up to 5,000 km strip per day
- Satellite mass
- 553 kg (complete spacecraft)
- Launch
- April 1, 2022 (SpaceX Falcon 9, Vandenberg)
- Flight heritage
- EnMAP operational since 2022; data freely available via DLR Geoservice
- TRL
- 9 (operational since 2022)
About
The EnMAP Hyperspectral Imager (HSI) is the science instrument at the core of the Environmental Mapping and Analysis Programme (EnMAP) Earth-observation satellite, developed and built by OHB System AG for DLR. EnMAP, launched April 2022, monitors and characterises Earth’s environments — terrestrial ecosystems, soils, coastal zones and inland waters — by measuring biochemical, biophysical and geochemical variables using precise hyperspectral reflectance data. The HSI uses a double-spectrometer pushbroom concept with a shared telescope: a VNIR channel covering 420–1000 nm with approximately 5 nm sampling, and a SWIR channel covering 900–2450 nm with approximately 10 nm sampling, together spanning 228 spectral bands. The field splitter unit directs radiation from a single telescope aperture into the two independent spectrometers. The 30 m ground sample distance across a 30 km swath provides fine spatial resolution with high radiometric fidelity. The complete spacecraft — HSI plus SmartLEO-derived 553 kg bus — operates in a sun-synchronous orbit at roughly 650 km with a 27-day exact-repeat cycle, delivering up to 5,000 km of hyperspectral strip imagery per day. EnMAP data are freely available through DLR’s Geoservice portal.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.