
VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians prepare to rotate the Aquarius/SAC-D spacecraft from a vertical to horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians prepare to rotate the Aquarius/SAC-D spacecraft into a vertical position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Dan Liberotti, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians begin to rotate the Aquarius/SAC-D spacecraft into a vertical position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Dan Liberotti, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Workers using an overhead crane lower the United Launch Alliance Delta II second stage motor toward the first stage for mating at NASA's Space Launch Complex-2 (SLC-2) at Vandenberg Air Force Base in California. Following final tests, the Aquarius/SAC-D spacecraft will be integrated to the Delta II launch vehicle in preparation for the targeted June liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians have rotated the Aquarius/SAC-D spacecraft into a horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- With the help of an overhead crane workers lift the United Launch Alliance Delta II second stage motor to the top of the service tower for mating with the first stage at NASA's Space Launch Complex-2 (SLC-2) at Vandenberg Air Force Base in California. Following final tests, the Aquarius/SAC-D spacecraft will be integrated to the Delta II launch vehicle in preparation for the targeted June liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians are rotating the Aquarius/SAC-D spacecraft into a vertical position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Dan Liberotti, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, NASA's Aquarius/SAC-D spacecraft is rotated for the final time into a vertical position prior to its installation into a transportation canister. Following delivery to the launch pad, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June liftoff. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians are rotating the Aquarius/SAC-D spacecraft into a vertical position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Dan Liberotti, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians prepare to rotate the Aquarius/SAC-D spacecraft from a vertical to horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians are rotating the Aquarius/SAC-D spacecraft from a vertical to horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians prepare to rotate the Aquarius/SAC-D spacecraft from a vertical to horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians are rotating the Aquarius/SAC-D spacecraft from a vertical to horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians have rotated the Aquarius/SAC-D spacecraft into a horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- With the help of an overhead crane workers lift the United Launch Alliance Delta II second stage motor to the top of the service tower for mating with the first stage at NASA's Space Launch Complex-2 (SLC-2) at Vandenberg Air Force Base in California. Following final tests, the Aquarius/SAC-D spacecraft will be integrated to the Delta II launch vehicle in preparation for the targeted June liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians are rotating the Aquarius/SAC-D spacecraft from a vertical to horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Workers prepare the United Launch Alliance Delta II second stage motor for lifting into the service tower at NASA's Space Launch Complex-2 (SLC-2) at Vandenberg Air Force Base in California. Following final tests, the Aquarius/SAC-D spacecraft will be integrated to the Delta II launch vehicle in preparation for the targeted June liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, NASA's Aquarius/SAC-D spacecraft is rotated for the final time into a vertical position prior to its installation into a transportation canister. Following delivery to the launch pad, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June liftoff. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, NASA's Aquarius/SAC-D spacecraft is rotated for the final time into a vertical position prior to its installation into a transportation canister. Following delivery to the launch pad, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June liftoff. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians prepare to rotate the Aquarius/SAC-D spacecraft from a vertical to horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians have rotated the Aquarius/SAC-D spacecraft into a horizontal position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Randy Beaudoin, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- The United Launch Alliance Delta II rocket is moved away from the service tower as workers prepare to lift the second stage to the top of the tower for mating with the first stage at NASA's Space Launch Complex-2 (SLC-2) at Vandenberg Air Force Base in California. Following final tests, the Aquarius/SAC-D spacecraft will be integrated to the Delta II launch vehicle in preparation for the targeted June liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians have rotated the Aquarius/SAC-D spacecraft into a vertical position for testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/Dan Liberotti, VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, NASA's Aquarius/SAC-D spacecraft is rotated for the final time into a vertical position prior to its installation into a transportation canister. Following delivery to the launch pad, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June liftoff. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Workers attach cables from an overhead crane to the United Launch Alliance Delta II second stage motor for mating to the first stage at NASA's Space Launch Complex-2 (SLC-2) at Vandenberg Air Force Base in California. Following final tests, the Aquarius/SAC-D spacecraft will be integrated to the Delta II launch vehicle in preparation for the targeted June liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians guide an overhead crane lowering the second solar array toward the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. --In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians prepare to test the second solar array after integration to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. --In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians have suspended a platform over the Aquarius/SAC-D spacecraft to allow access for the installation of the second solar array. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians perform blanket work in the vicinity of the dual-thruster modules on the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians on suspended platforms are preparing to install the second solar array to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians prepare to test the solar array after its integration to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, a technician measures the clearance between the solar panel and a dual-thruster module after the array was installed to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Inside the mobile service tower at NASA's Launch Complex-2 at Vandenberg Air Force Base in California, workers prepare to install the Aquarius/SAC-D spacecraft into the United Launch Alliance’s Delta II payload fairing. Aquarius will be integrated to the Delta II rocket in preparation for the targeted June 9 liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Inside the mobile service tower at NASA's Launch Complex-2 at Vandenberg Air Force Base in California, a technician secures the United Launch Alliance’s Delta II payload fairing around the Aquarius/SAC-D spacecraft. Aquarius will be integrated to the Delta II rocket in preparation for the targeted June 9 liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Inside the mobile service tower at NASA's Launch Complex-2 at Vandenberg Air Force Base in California, workers secure the United Launch Alliance’s Delta II payload fairing around the Aquarius/SAC-D spacecraft. Aquarius will be integrated to the Delta II rocket in preparation for the targeted June 9 liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians perform blanket work in the vicinity of the dual-thruster modules on the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. --In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians attach an overhead crane to the second solar array that will be integrated to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians prepare to test the solar array after it was integrated to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians configure antenna hats in preparation for system tests on the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Inside the mobile service tower at NASA's Launch Complex-2 at Vandenberg Air Force Base in California, workers prepare the Aquarius/SAC-D spacecraft for fairing installation. Aquarius will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June 9 liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians detach the overhead crane that moved the second solar array for integration and testing to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians have removed the second solar array that will be integrated to the Aquarius/SAC-D spacecraft from its protective container. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Inside the mobile service tower at NASA's Launch Complex-2 at Vandenberg Air Force Base in California, workers monitor the progress as the United Launch Alliance’s Delta II payload fairing closes around the Aquarius/SAC-D spacecraft. Aquarius will be integrated to the Delta II rocket in preparation for the targeted June 9 liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Inside the mobile service tower at NASA's Launch Complex-2 at Vandenberg Air Force Base in California, technicians secure the United Launch Alliance’s Delta II payload fairing around the Aquarius/SAC-D spacecraft. Aquarius will be integrated to the Delta II rocket in preparation for the targeted June 9 liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians have detached the overhead crane that moved the second solar array for integration and testing to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, a technician makes an adjustment to a solar array control on the Aquarius/SAC-D spacecraft during deployment testing. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians extend a solar array on the Aquarius/SAC-D spacecraft to test the release mechanism sequence for the array using signal commands. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians remove a protective cover from the solar array after integration to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians extend a solar array on the Aquarius/SAC-D spacecraft to test the release mechanism sequence for the array using signal commands. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- Inside the mobile service tower at NASA's Launch Complex-2 at Vandenberg Air Force Base in California, the Aquarius/SAC-D spacecraft is secure inside the United Launch Alliance’s Delta II payload fairing. Aquarius will be integrated to the Delta II rocket in preparation for the targeted June 9 liftoff. Aquarius, the NASA-built instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, a technician makes an adjustment to the solar array after it was installed to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. -- In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians guide an overhead crane lowering the second solar array toward the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB

VANDENBERG AIR FORCE BASE, Calif. --In Space Systems International's Payload Processing Facility at Vandenberg Air Force Base in California, technicians attach an overhead crane to the second solar array that will be integrated to the Aquarius/SAC-D spacecraft. Following final tests, the spacecraft will be integrated to a United Launch Alliance Delta II rocket in preparation for the targeted June launch. Aquarius, the NASA-built primary instrument on the SAC-D spacecraft, will provide new insights into how variations in ocean surface salinity relate to fundamental climate processes on its three-year mission. Photo credit: NASA/VAFB