What Does CIRC Stand For?

CIRC stands for Circularization Burn OMS2

CIRC, or Circularization Burn OMS2, refers to the orbital maneuver performed by spacecraft to transition from an elliptical orbit to a circular orbit. This burn is typically executed using the Orbital Maneuvering System (OMS) and serves to optimize the spacecraft's trajectory for its mission objectives, ensuring a stable and efficient orbit around a celestial body. The CIRC maneuver is critical for achieving precise orbital insertion and alignment for subsequent operations.