What is Astra?

Astra is the name given to a group of satellites which are located at the same place above the Earth (around 19 degrees east of south). As far as your dish is concerned, this group of satellites looks like one large satellite because they are so far away and so close together. 

Each Astra satellite has at least 16 transponders. At present there are six satellites in the group, labelled 1A to 1F. Satellite 1A to 1D transmit mostly ordinary "analogue" signals.