The High Energy Transient Explorer 2 (HETE-2) was launched in October 2000 (on a nominally 2-year mission) and was still operational (but fading) in March 2007.
Yüksek Enerji Geçici Gezgini (HETE-2), Ekim 2000’de (sözde 2 yıllık bir görevde) fırlatıldı ve Mart 2007’de hala operasyoneldi.