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Three Configurations
The dishes of the BIMA array are set on a "T" shaped track, 305 meters long
in the East-West direction, and 183 meters long in the North-South direction.
For observational purposes, the dishes are set in only one of three
configurations, each affording a different resolution. Configuration A produces
the highest resolution, configuration B yields medium resolution, and
configuration C provides the lowest resolution. So, in configuration A, the
BIMA array discerns small scale features, while configuration C is better at
picking out details on the large scale.
Moving the BIMA Array's Dishes
Recently, a receiving station was installed to the north of a 183 meter-long section.
Placing an antenna at this station extends one of the tracks to 900 meters. The longer baselines in this
A+ configuration enable imaging at higher resolution.
JPEG Image (43K)
More technical information about BIMA's configurations can be found at the
University of Maryland's BIMA server.
Return to Expanding the BIMA Array
Return to Spatial Resolution
Up to Planning for the Future with the BIMA Array
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Illinois
NCSA. Last modified by 11/12/95
