老毛病，知其一而不知其二。
SBIRS-High GEO are satellites. SBIRS-High HEO (High Elliptical Orbit) are payloads hosted on spacecraft with classified launch dates. At present, 2 HEO are in service, and a 3rd HEO payload is prepping for launch. The first SBIRS High HEO payload 
was declared operational in November 2008.
The first SBIRS-High GEO satellite launch was pushed back many times, thanks to significant program delays that moved the initial launch back from 2002. SBIRS GEO-1 wasn’t delivered to Cape Canaveral until March 2011, and the launch actually took place in May 2011.
