RME
Relay Mirror Experiment

The Relay Mirror Experiment (RME) was launched as a dual payload with LACE. Both satellites carried defense experiments intended to aid in design of space-based anti-missile lasers. RME validated stabilization, tracking, and pointing technologies at performance levels required for Strategic Defense Initiative (SDI) missions through a credible demonstration of a space-based relay mirror system. RME's 24-inch mirror was used to test laser pointing technology by deflecting ground-based beams back to earth. RME's attitude control system malfunctioned immediately after launch, shutting off a reaction wheel. The Maui Optical Observatory atop Mount Haleakala established the first relay on June 26, 1990, with Kihei, Hawaii. The payload also included the Wideband Angular Vibration Experiment (WAVE) measured low-level angular vibrations affecting performance of acquisition, tracking, and pointing (ATP) systems.

Payload
The precision relay mirror was 24 in. (61 cm) and had a pointing accuracy of 0.2 arcsec.

Country of Origin	United States
Customer/User	SDIO
Manufacturer(s)	Ball Space Systems
Orbit	457x478 km, include.=43.1 deg
Design Life	6 months
Related Sites	Air Force RME Site

Launch Facts

Name	Int'l Desig.	Date	Site	Vehicle	Orbit	Mass(kg)
Notes
RME (USA 52)	1990-015B	2/14/90	ESMC	Delta 6920-8	LEO	1040
Relay Mirror Experiment for SDIO