IGF::OT::IGF ATOMIC CLOCK WITH ENHANCED STABILITY (ACES)WILL PROVIDE UNPRECEDENTED FREQUENCY AND TIMING ACCURACY ON LOW SWAP PLATFORMS. OF PARTICULAR INTEREST ARE PORTABLE BATTERY-POWERED CLOCKS, WHICH REQUIRE MINIMAL TIME FOR CALIBRATION AFTER POWER-ON AND WHICH MAINTAIN ACCURATE TIME AND FREQUENCY OVER EXTENDED DURATION IN RELEVANT DOD OPERATING ENVIRONMENTS. ACES TA 2 WILL ADDRESS AN INNOVATIVE APPROACH TO ATOMIC CLOCK INTERROGATION OR ARCHITECTURE OR NOVEL COMPONENT TECHNOLOGY RELEVANT TO THE DEVELOPMENT OF HIGH-PERFORMANCE LOW-SWAP ACES CLOCKS.