# Zhuhai-1 OHS
*missions*

## Specifications
- **operator**: zhuhai-orbita
- **actual launch**: 2018-04-26
- **current status**: operational
- **orbit type**: Sun-synchronous orbit, about 500 km altitude, 97 degree inclination for OHS-01/02 launch batch
- **swath km**: 150
- **tasking supported**: true
- **archive depth years**: 8
- **current geographic priority**: Agriculture, forestry, water, ecology, marine and fishery applications.
- **launch vehicle**: casc-long-march-11
- **entity type**: mission
- **last verified date**: 2026-06-14
- **verified by**: operator
- **claim status**: unclaimed
- **provider**: zhuhai-orbita
- **attributes**: {"operator":"zhuhai-orbita","actual_launch":"2018-04-26","current_status":"operational","orbit_type":"Sun-synchronous orbit, about 500 km altitude, 97 degree inclination for OHS-01/02 launch batch","swath_km":150,"tasking_supported":true,"archive_depth_years":8,"current_geographic_priority":"Agriculture, forestry, water, ecology, marine and fishery applications.","launch_vehicle":"casc-long-march-11"}
- **relevance**: in-scope

## Editorial
Zhuhai-1 OHS is the hyperspectral imaging component of the Zhuhai No.1 constellation, operated by Zhuhai Orbita. The first OHS pair (OHS-01/OHS-02) was launched on 2018-04-26 into a sun-synchronous orbit at approximately 500 km altitude and 97 degree inclination.[^gunter-zhuhai-ohs][^satcat-ohs02] The operator markets OHS as one component of the wider Zhuhai No.1 multi-sensor constellation; the OHS mission designation covers the hyperspectral part of that programme.[^obt-zhuhai1] OHS satellites carry a pushbroom hyperspectral imager with a 150 km swath and 10 m ground sampling distance, supporting hyperspectral classification, spectral library matching, spectral unmixing, and vegetation index mapping workflows.[^obt-zhuhai1] Full spectral range and individual band count for the OHS imager are not published in operator marketing materials as of 2026-06-14. Primary application areas include agriculture (crop type and crop stress), forestry and biodiversity, inland water, coastal water quality, and marine primary production.[^obt-zhuhai1] The operator page lists 12 satellites in orbit as of 2026-06-14.[^obt-zhuhai1]

## Compositional position
- Zhuhai-1 OHS --[mission_payloads]--> zhuhai-1-ohs-imager (products)
- Zhuhai-1 OHS --[related-topic]--> land-cover-change (topics)
- Zhuhai-1 OHS --[related-topic]--> crop-type (topics)
- Zhuhai-1 OHS --[related-topic]--> crop-stress (topics)
- Zhuhai-1 OHS --[related-topic]--> forest-structure (topics)
- Zhuhai-1 OHS --[related-topic]--> biodiversity (topics)
- Zhuhai-1 OHS --[related-topic]--> inland-water (topics)
- Zhuhai-1 OHS --[related-topic]--> coastal-water-quality (topics)
- Zhuhai-1 OHS --[related-topic]--> marine-primary-production (topics)

## Sources
- [obt-zhuhai1] | Zhuhai No.1 Constellation | https://www.obtdata.com/en/zhuhai1.html | tier=operator-marketing | accessed=2026-06-14
- [gunter-zhuhai-ohs] | Zhuhai-1 OHS satellite summary | https://space.skyrocket.de/doc_sdat/zhuhai-1_ohs-2.htm | tier=community | accessed=2026-06-14
- [satcat-ohs02] | Satcat record: ZHUHAI-1 OHS-02 | https://www.satcat.com/sats/43441 | tier=community | accessed=2026-06-14

---
Source: https://eo-atlas.org/missions/zhuhai-1-ohs
Maintainer: SpectraWorks B.V. (CC-BY 4.0)