Ballerina - pirouettes in search of gamma bursts

The cosmological origin of gamma ray bursts has now been established with r easonable certainty, Many more bursts will need to be studied to establish the typical distance scale, and to map out the large diversity in propertie s which have been indicated by the first handful of events. We are proposin g Ballerina, a small satellite to provide accurate positions and new data o n the gamma-ray bursts. We anticipate a detection rate an order of magnitud e larger than obtained from Beppo-SAX.