You basically have thousands of cameras taking constant images of the sky. If you could upgrade the cameras, you could deploy a continuous all-sky astronomical survey as a by-product.
>>toomuc+o3
No idea--but he thinks the asteroid detection could be done even without an upgrade, assuming current cameras can see down to magnitude 7 (which is not that faint--human eye should be able to see down to 7 or 8 in space).