# A-Train

> satellite formation of four Earth observation satellites

**Wikidata**: [Q277959](https://www.wikidata.org/wiki/Q277959)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/A-train_(satellite_constellation))  
**Source**: https://4ort.xyz/entity/a-train-q277959-2


## References

1. [Source](https://atrain.nasa.gov/)
2. [Source](https://parasol.cnes.fr/en/PARASOL/GP_actualites.htm)
3. [Source](https://www.earthdata.nasa.gov/learn/articles/aqua-at-20)
4. Freebase Data Dumps. 2013