Navstar-2F 1

Spacecraft nr:

US spacecraft nr:

Launch data: Designation  36585 / 10022A Launch date  28 May 2010 - 03:00 UT Launch site  CC, SLC-37B Launch vehicle  Delta-4M+(4,2) Mission  Military: Navigation Commercial: Global Positioning MEO Earth orbit on Jun 25.60: Perigee / Apogee  20188 x 20223 km Eccentricity  6.77E-04 Inclination  55.00 deg Period  718.93 min

Spacecraft data:

Description:

• Navstar-2F (Navigation System using Timing And Ranging) or GPS-2F satellites are the fourth evolution stage of the second generation of the Navstar GPS satellites. Improvements included an extended design life of 12 years, faster processors with more memory, and a new civil signal on a third frequency.
• Boeing was contracted with options for up to 33 Block IIF satellites in 1996, but in 2001 the contract was reduced to 12 Block IIF satellites. In July 2006, satellites 10, 11 and 12 were contracted.
• The Navstar-2F satellites do not need to carry an apogee kick motor, in contrast to the earlier generations, as the launch vehicles provide direct insertion into the GPS orbit.

Mission details:

• The first Block IIF Global Positioning System satellite, SVN 62, was launched from Cape Canaveral on May 28, 2010. The satellite was built by Boeing/El Segundo and has a launch mass of 1630 kg including an unknown amount of station keeping propellant. The Block IIF satellites carry the L1M and L2M military GPS channels, the L2C civilian channel and a new L5 civilian channel as well as a nuclear explosion detection system (descendant of the Vela satellites, to monitor the test ban treaty) and the a classified instrument.
• The Delta rocket entered a low parking orbit, probably around 270 x 320 km x 37.5 deg, at 0312 UTC. At 0324 UTC it restarted to enter a transfer orbit of 252 x 20464 x 43.3 deg. At 0620 UTC the stage made a third burn to a 20437 x 20460 km x 55.0 deg orbit and then deployed the GPS satellite.