# LAGEOS Laser Retroreflector Array
*sensor . products*

Passive cube-corner retroreflector array used for satellite laser ranging to LAGEOS.

## Specifications
- **product status**: operational
- **deployment context**: orbital
- **manufacturer**: nasa
- **sensor**: {"instrument_family":"lidar","measurement_principle":"multistatic","wavelength_nm":532,"return_type":"discrete-returns","notes":"Passive retroreflector target for ground-based satellite laser ranging; no onboard laser emitter."}
- **entity type**: sensor
- **last verified date**: 2026-06-14
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: nasa
- **attributes**: {"kind":"sensor","product_status":"operational","deployment_context":"orbital","manufacturer":"nasa","description":"Passive cube-corner retroreflector array used for satellite laser ranging to LAGEOS.","sensor":"{\"instrument_family\":\"lidar\",\"measurement_principle\":\"multistatic\",\"wavelength_nm\":532,\"return_type\":\"discrete-returns\",\"notes\":\"Passive retroreflector target for ground-based satellite laser ranging; no onboard laser emitter.\"}"}
- **relevance**: ancillary

## Compositional position
- lageos-1 (missions) --[mission_payloads]--> LAGEOS Laser Retroreflector Array

## Sources
- [ilrs-lageos-reflector] | ILRS LAGEOS reflector information | https://ilrs.gsfc.nasa.gov/missions/satellite_missions/current_missions/lag1_reflector.html | tier=agency-doc | accessed=2026-06-14
- [wmo-lageos-1] | WMO OSCAR LAGEOS-1 satellite record | https://space.oscar.wmo.int/satellites/view/lageos_1 | tier=agency-doc | accessed=2026-06-14

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Source: https://eo-atlas.org/products/sensor/lageos-laser-retroreflector-array
Maintainer: SpectraWorks B.V. (CC-BY 4.0)