part of the STS-130 crew's day was spent stowing items and getting their rendezvous tools out and checking them out to ensure they are ready for undocking. February 20 (Flight Day 13: Undocking) Space Shuttle Endeavour successfully undocked with the ISS at 00:54 UTC (19:54 EST) on flight day 13. After undocking, pilot Terry Virts backed Endeavour to a distance of and began conducting a fly around of the ISS. After the fly around was complete, Virts used Endeavour's jets to move the shuttle to a point behind the station. Once the separation burns were complete, the crew conducted the late inspection of the shuttles thermal protection system. The inspection took up most of the crews afternoon with crew members rotating in and out to help with it. Commander George Zamka performed a waste water and condensate water dump, with the help of Terry Virts. February 21 (Flight Day 14: Landing Prep) The crew of STS-130 began preparing the Space Shuttle Endeavour for landing. During the day commander George Zamka and pilot Terry Virts, with help from mission specialist and flight engineer Stephen Robinson checked out the Flight Control System (FCS) and did a hot fire test of the Reaction Control System (RCS). Commander Zamka also did communications checks with mission control through the tracking stations at Merit Island, White Sands Space Harbor and Edwards Air Force Base. These checks are routine for the day before landing and were all successful. While all the system checkouts were going on, the rest of the crew were stowing items no longer needed during the flight. During the early part of the day Stephen Robinson and Terry Virts also stowed and deactivated the Space Shuttle robotic arm. The entire crew also took time out of their day to conduct an in-flight interview with CNN, CNN Español and Univision. February 22 (Flight Day 15: Landing) Space Shuttle Endeavour and her STS-130 crew awoke on flight day 15 to begin getting ready for landing. The landing preparations included closing the payload bay doors, activating the Auxiliary Power Units and getting into their launch and entry suits. Commander George Zamka and pilot Terry Virts fired Endeavours 2 OMS engines for 2 mins 38 secs, this slowed Endeavour by about . The decision to go ahead with the de-orbit burn was made 25 min prior to the burn occurring. Landing occurred at 22:22:10 EST at the Kennedy