The SBIRS Low Program Definition and Risk Reduction (PDRR) phase was to demonstrate program capabilities through an on-orbit, operational test of two demonstration systems using known, representative threat targets.
One of those, SBIRS-Low FDS (Flight Demonstration Satellites) were to consist of two satellites launched together.
|Type / Application:||Early warning|
|Operator:||Missile Defense Agency (MDA) through the U.S. Air Force Space & Missile Systems Center (SMC),|
|Power:||2 deployable solar arrays, batteries|
|SBIRS-Low FDS 1||-||cancelled||Va SLC-2W||Delta-7420-10C||with SBIRS-Low FDS 2|
|SBIRS-Low FDS 2||-||cancelled||Va SLC-2W||Delta-7420-10C||with SBIRS-Low FDS 1|