Planetary Defense Coordination Office

Planetary Defense Coordination Office
Agency overview
FormedJanuary 2016 (2016-01)
JurisdictionUnited States
HeadquartersWashington, D.C.
MottoHic Servare Diem (Latin)
"Here to Save the Day"
Agency executive
  • Lindley Johnson, Planetary Defense Officer
Parent departmentScience Mission Directorate, Planetary Science Division
Parent agencyNASA
Websitenasa.gov/planetarydefense

The Planetary Defense Coordination Office (PDCO) is a planetary defense organization established in January 2016 within NASA's Planetary Science Division of the Science Mission Directorate. It includes a Near Earth Observations Program which funds telescopic searches and orbit calculations.

Its mission is to look for and catalogue near-Earth objects such as comets, asteroids, and potentially hazardous objects that could impact Earth, as well as help the U.S. government prepare for a potential impact event (and coordinate efforts to mitigate and deflect potential threats if one is detected).