NASA has assigned several payloads to small-class boosters tbd: EO-2/98, EO-1/98, SAC-C/99, ESSP-01/99, SMEX-06/00, Deep Space 3/00, ESSP-02/00, SCISAT-1/00, SMEX-07/01, SMEX-08/02, ESSP-04/02

 

Source: Flight International