2 SOPS upgrades GPS constellation with latest Block IIF vehicle
By Scott Prater, Schriever Sentinel
/ Published July 15, 2014
SCHRIEVER AIR FORCE BASE, Colo. -- The 2nd Space Operations Squadron accepted satellite control authority of its sixth GPS Block IIF satellite during a ceremony here May 30.
Following its launch May 16 from Cape Canaveral, Fla., acquirers from the Space and Missile Systems Center and operators from the 50th and 310th Space Wings first performed an extensive checkout of the spacecraft before placing it into a primary slot in the GPS constellation.
Col. Bill Cooley, director at the Space and Missile Systems Center's GPS Directorate, started the ceremony by transferring satellite control authority of the vehicle, known as SVN-67, to the 14th Air Force.
Lt. Col. Chad Riden, 14th AF chief of operations, accepted SCA and transferred it to 50 SW Commander, Col. Bill Liquori.
"Today's successful transfer of satellite control authority is another great example of a total team effort - operations and acquisition, government and industry," Liquori said.
"I'm extremely proud of the 2 SOPS, 19 SOPS, and SMC team for their dedication and commitment to excellence."
Liquori delegated command and control of SVN-67 to 2 SOPS.
"It continues to be an honor and privilege for 2 SOPS to operate the satellites that make up the Global Positioning System," said Lt. Col. Thomas Ste. Marie," 2 SOPS commander. "I cannot say enough good things about the tremendous partnership between the engineers, analysts and acquirers from the Space and Missile Systems Center GPS Program office, the operators from the 19th Space Operations Squadron and the contractors, government civilians and military men and women of the 2nd Space Operations squadron that make such a complicated operation work flawlessly every single time."
Adding a sixth Block IIF to the constellation represents a significant milestone for GPS because SVN-67, will replace the last remaining legacy GPS Block IIA satellite in a primary node.
"SVN-67 is moving into a slot formerly occupied by SVN-34, a GPS Block IIA vehicle that has been broadcasting since the mid-1990s," said Capt. Achille Aloisi, 2 SOPS GPS mission analysis flight commander.
GPS satellites transmit digital radio signals to receivers on the ground, allowing military and civilian users to calculate their time, location and velocity.
The Block IIF series is the fifth generation of GPS spacecraft and provides improved timing technology, a more jam-resistant military signal and higher powered civilian signal compared to previous models. SVN-67 was designed to operate on orbit for 12 years and includes a reprogrammable processor capable of receiving software uploads.
"The good thing about these Block IIF vehicles is they are all modernized," Aloisi said. "They can broadcast our newest signals, such as the L2C and L5, and they provide a more flexible capability to users."
Despite being replaced in its primary slot, SVN-34 is still producing healthy signals and will continue to contribute to GPS missions for the foreseeable future.
"We're moving SVN-34 to a different node so it can back up an older Block IIR satellite," Aloisi said.
The seventh GPS Block IIF is slated for launch in July. Ultimately, the Air Force plans to launch 12 Block IIFs and has two launches remaining in the planning stage for 2014.