DSP
Defense Support Program
Part of the DSP (Defence Support Program) program

DSP is the 2nd generation DSP satellite.

Spacecraft
Spacecraft spin slowly (6 rpm) about the nadir axis to permit scanning of the Earth by the detector system. Zero momentum stabilized using a reaction wheel to counter the spacecraft spin. Body mounted cells and deploablye panels generate roughly 680 W.

Payload
Payload includes 3.6 m Schmidt telescope with 2000 element IR sensor, nuclear detection sensors.

Country of Origin	United States
Customer/User	USAF
Manufacturer(s)	TRW
Size	2.8 m dia. by 2.9 m tall cylinder
Orbit	Geosynchronous
Design Life	3 years (5 year goal)

Launch Facts

Name	Int'l Desig.	Date	Site	Vehicle	Orbit	Mass(kg)
Notes
DSP F6	1976-059A	6/26/76	ESMC	Titan 3C	GEO	820
Defense Support Program
DSP F7	1977-007A	2/6/77	ESMC	Titan 3C	GEO	820
Defense Support Program
DSP F8	1979-053A	6/10/79	ESMC	Titan 3C	GEO	820
Defense Support Program
DSP F9	1981-025A	3/16/81	ESMC	Titan 3C	GEO
Defense Support Program
DSP F10	1982-019A	3/6/82	ESMC	Titan 3C	GEO
Defense Support Program
DSP F11	1984-037A	4/15/84	ESMC	Titan 34D	GEO
Defense Support Program
DSP F12 (USA 7)	1984-129A	12/22/84	ESMC	Titan 34D	GEO
Defense Support Program
DSP F13 (USA 28)	1987-097A	11/29/87	ESMC	Titan 34D	GEO
Defense Support Program