# (21039) 1990 ES4

> asteroid

**Wikidata**: [Q5185335](https://www.wikidata.org/wiki/Q5185335)  
**Source**: https://4ort.xyz/entity/-21039-1990-es4


## References

1. [JPL Small-Body Database](https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=20021039)
2. JPL Small-Body Database
3. [Source](https://www.minorplanetcenter.net/db_search/show_object?object_id=21039)