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We present motivations for and study feasibility of a small, rapid optical toIR response gamma ray burst (GRB) space observatory. By analyzing existing GRBdata, we give realistic detection rates for X-ray and optical/IR instruments ofmodest size under actual flight conditions. Given new capabilities of fastoptical/IR response (about 1 s to target) and simultaneous multi-band imaging,such an observatory can have a reasonable event rate, likely leading to newscience. Requiring a Swift-like orbit, duty cycle, and observing constraints, aSwift-BAT scaled down to 190 square cm of detector area would still detect andlocate about 27 GRB per yr. for a trigger threshold of 6.5 sigma. About 23percent of X-ray located GRB would be detected optically for a 10 cm diameterinstrument (about 6 per yr. for the 6.5 sigma X-ray trigger).

Feasibility of a Small, Rapid Optical-to-IR Response, Next Generation Gamma Ray Burst Mission