Program

SSU

Payloads: 24
In orbit: 23
Operational (CelesTrak): 0
Re-entered: 1
First launch: 1976-04-30
Latest launch: 1987-05-15

Owners

NRO/NRL24

Built by

Martin Marietta18
Naval Research Lab6

Payloads in this program

Name	NORAD	Launch date	Status
SSU 1	8835	1976-04-30	-
SSU 2	8836	1976-04-30	-
SSU 3	8884	1976-04-30	-
SS 1	10529	1977-12-08	-
SS 2	10544	1977-12-08	-
SS 3	10594	1977-12-08	-
EP 1	11731	1980-03-03	-
EP 2	11732	1980-03-03	-
EP 3	11745	1980-03-03	Re-entered 2021-04-02
SSA	13844	1983-02-09	-
SSB	13845	1983-02-09	-
SSC	13874	1983-02-09	-
GB 1	14143	1983-06-09	-
GB 2	14144	1983-06-09	-
GB 3	14180	1983-06-09	-
JD 1	14728	1984-02-05	-
JD 2	14729	1984-02-05	-
JD 3	14795	1984-02-05	-
USA 16	16624	1986-02-09	-
USA 17	16625	1986-02-09	-
USA 18	16631	1986-02-09	-
USA 23	18009	1987-05-15	-
USA 24	18010	1987-05-15	-
USA 25	18025	1987-05-15	-

From GCAT by Jonathan McDowell (CC BY 4.0). Roles are counted from the catalogue itself, not from GCAT type labels, which GCAT describes as patchy. About this source