# ANSER (Advanced Nanosatellites System for Earth Observation Research)
*missions*

## Specifications
- **country**: Spain
- **operator**: inta
- **website**: https://www.eoportal.org/satellite-missions/anser
- **platform**: anser-3u-bus
- **launch vehicle**: arianespace-vega
- **actual launch**: 2023-10-09
- **current status**: operational
- **orbit type**: Sun-synchronous orbit
- **swath km**: 50
- **revisit days**: 30
- **tasking supported**: false
- **current geographic priority**: Iberian Peninsula inland waters and reservoir monitoring
- **entity type**: mission
- **last verified date**: 2026-06-21
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: inta
- **attributes**: {"country":"Spain","operator":"inta","website":"https://www.eoportal.org/satellite-missions/anser","platform":"anser-3u-bus","launch_vehicle":"arianespace-vega","actual_launch":"2023-10-09","current_status":"operational","orbit_type":"Sun-synchronous orbit","swath_km":50,"revisit_days":30,"tasking_supported":false,"current_geographic_priority":"Iberian Peninsula inland waters and reservoir monitoring"}

## Editorial
ANSER is a distributed nanosatellite Earth-observation mission from INTA for inland-water and reservoir monitoring.[^inta-anser][^anser-eoportal] It launched on 2023-10-09 UTC on Arianespace Vega flight VV23.[^arianespace-vv23] The mission uses a 3U CubeSat-class ANSER nanosatellite bus and the CINCLUS red and near-infrared photometer payload.[^inta-anser][^anser-eoportal] CINCLUS is described with five narrow red/NIR bands, a 50 km swath, 50 m ground sampling, and a coverage goal of less than 30 days over the Iberian Peninsula.[^inta-anser][^anser-eoportal] The mission focus is targeted water-resource observation from formation-flying nanosatellites.[^inta-anser]

## Compositional position
- ANSER (Advanced Nanosatellites System for Earth Observation Research) --[mission_payloads]--> cinclus (products)
- ANSER (Advanced Nanosatellites System for Earth Observation Research) --[mission_buses]--> anser-3u-bus (products)
- ANSER (Advanced Nanosatellites System for Earth Observation Research) --[related-topic]--> inland-water (topics)
- ANSER (Advanced Nanosatellites System for Earth Observation Research) --[related-topic]--> coastal-water-quality (topics)

## Sources
- [arianespace-vv23] | Flight VV23: success to the benefit of Thailand, Taiwan and Cubesats | https://newsroom.arianespace.com/flight-vv23-success-to-the-benefit-of-thailand-taiwan-and-cubesats/ | tier=operator-press | accessed=2026-06-21 | published=2023-10-08
- [inta-anser] | El INTA desarrolla ANSER, una constelacion de mini satelites de observacion | https://www.inta.es/INTA/es/comunicacion/noticias/Noticia_1562156072542/ | tier=agency-doc | accessed=2026-06-21
- [anser-eoportal] | ANSER, eoPortal | https://www.eoportal.org/satellite-missions/anser | tier=community | accessed=2026-06-21

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