KH-13

KH-13 is an unofficial designation which may refer to several US reconnaissance satellite programmes; a continuation of the Key Hole series which officially ended at KH-11:
 * Misty (classified project)
 * Enhanced Imaging System
 * Future Imagery Architecture
 * Any successor to the KH-11 satellites

Others uses:
 * KH-13 is the ISO 3166-2 code for Cambodia's Preah Vihear Province