# ALMA

*Observatory*

Atacama Large Millimeter/submillimeter Array, Chajnantor

| | |
| --- | --- |
| Where it is | 23.0300° S, 67.7500° W |
| State | CL |
| What is done there | radio observatory |
| Still working | yes |

Test ranges, observatories and ground stations are a hand-picked list kept in this project rather than a published catalogue: no catalogue answers which of the world's thousands of observing sites belong on a map of it. The article below is what lets the choice be argued with.

## What it is

The Atacama Large Millimeter/submillimeter Array (ALMA) is an astronomical interferometer of 66 radio telescopes in the Atacama Desert of northern Chile, which observe electromagnetic radiation at millimeter and submillimeter wavelengths. The array has been constructed on the 5,000 m (16,000 ft) elevation Chajnantor plateau – near the Llano de Chajnantor Observatory and the Atacama Pathfinder Experiment.

## Elsewhere

- This place on the live map: https://www.orbitalmap.space/?at=-23.03,-67.75
- The article this row is vouched by: https://en.wikipedia.org/wiki/Atacama_Large_Millimeter_Array
- Every object: https://www.orbitalmap.space/o/
- What this site is and what it reads: https://www.orbitalmap.space/llms.txt

## Where this came from

Compiled 2026-09-17. Selected by hand for this project. Description from Wikipedia (en). Description: CC BY-SA 4.0.