Micro-Arcsecond Metrology testbed (MAM)

The micro-arcsecond metrology testbed (MAM) is a high- precision long baseline interferometer inside a vibration- isolated vacuum tank. The instrument consists of an artificial star, a laser metrology system, and a single- baseline interferometer with a 1.8m baseline and a 5cm clear aperture. MAM's purpose is to demonstrate that the astrometric error budget specified for the Space Interferometry Mission can be met.