  The ever increasing dependence of modern societies in space based services
results in a rising number of objects in orbit which grows the probability of
collisions between them. The increase in space debris is a threat to space
assets, space based-operations and led to a common effort to develop programs
for dealing with it. As part of the Portuguese Space Surveillance and Tracking
(SST) project, led by the Portuguese Ministry of Defense (MoD), Instituto de
Telecomunica\c{c}\~oes (IT) is developing the rAdio TeLescope pAmpilhosa Serra
(ATLAS), a new monostatic radar tracking sensor located at the Pampilhosa da
Serra Space Observatory (PASO), Portugal. The system operates at 5.56 GHz and
aims to provide information on objects in low earth orbit (LEO), with cross
sections above 10 cm$^2$ at 1000~km. The sensor is tasked by the Portuguese
Network Operations Center (NOC), located in the Azores island, which interfaces
with the EU-SST network.
