The "satellite" pyramids are small pyramids that sit next to the three main pyramids at Giza. There are four satellite pyramids on the eastern side of the Great Pyramid, one on the south side of the Second Pyramid, and three on the south side of the Third Pyramid.
The map (below left) a section of "The Guide to the Giza Plateau"
and the photo (below right), show the Pyramid Temple (lined with basalt paving stones) and the four satellite pyramids. The small fourth satellite pyramid was recently discovered and excavated.