KENNEDY SPACE CENTER, FLA. - In Orbiter Processing Facility bay 1 at NASA's Kennedy Space Center, the orbiter boom sensor system is lowered into Atlantis' payload bay for installation. The 50-foot-long boom attaches to the shuttle arm and is one of the new safety measures added prior to Return to Flight last year. It equips the orbiter with cameras and laser systems to inspect the shuttle's heat shield while in space. Atlantis is scheduled to launch on mission STS-115 no earlier than Aug. 28. Photo credit: NASA/Jim Grossmann

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KENNEDY SPACE CENTER, FLA. - In Orbiter Processing Facility bay 1 at NASA's Kennedy Space Center, the orbiter boom sensor system is lifted off a transporter. The boom will be installed in Atlantis' payload bay. The 50-foot-long boom attaches to the shuttle arm and is one of the new safety measures added prior to Return to Flight last year. It equips the orbiter with cameras and laser systems to inspect the shuttle's heat shield while in space. Atlantis is scheduled to launch on mission STS-115 no earlier than Aug. 28. Photo credit: NASA/Jim Grossmann

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KENNEDY SPACE CENTER, FLA. - In Orbiter Processing Facility bay 1 at NASA's Kennedy Space Center, workers complete installation of the orbiter boom sensor system into Atlantis' payload bay. The 50-foot-long boom attaches to the shuttle arm and is one of the new safety measures added prior to Return to Flight last year. It equips the orbiter with cameras and laser systems to inspect the shuttle's heat shield while in space. Atlantis is scheduled to launch on mission STS-115 no earlier than Aug. 28. Photo credit: NASA/Jim Grossmann

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KENNEDY SPACE CENTER, FLA. - In Orbiter Processing Facility bay 1 at NASA's Kennedy Space Center, workers install the orbiter boom sensor system into Atlantis' payload bay. The 50-foot-long boom attaches to the shuttle arm and is one of the new safety measures added prior to Return to Flight last year. It equips the orbiter with cameras and laser systems to inspect the shuttle's heat shield while in space. Atlantis is scheduled to launch on mission STS-115 no earlier than Aug. 28. Photo credit: NASA/Jim Grossmann

S115-E-05306 (10 Sept. 2006) --- While working to survey the thermal protection system on the Space Shuttle Atlantis, the orbiter boom sensor system (OBSS), attached to the remote manipulator system (RMS) arm was positioned near the shuttle's aft cabin windows. This enabled one of the STS-115 crewmembers to record this digital still close-up image of the Canadian-built system.

Survey of the TPS on the STS-115 Space Shuttle Atlantis

S115-E-05305 (10 Sept. 2006) --- While working to survey the thermal protection system on the Space Shuttle Atlantis, the orbiter boom sensor system (OBSS), attached to the remote manipulator system (RMS) arm was positioned near the shuttle's aft cabin windows. This enabled one of the STS-115 crewmembers to record this digital still image of the Canadian-built system and some of the hardware stowed in the payload bay of the shuttle, as well as the vertical stabilizer and the two orbital maneuvering system (OMS) pods.