|
Technical Specifications
Block
IIF satellites are the fourth generation of GPS
satellites. In April 1996 the contract was awarded to Rockwell
International (now Boeing) for 6 satellites and 27 options.
In
March 2000 the USAF decided to rebid this contract. Boeing will be
allowed to build as many as 12 of the Block IIF satellites, but the
remainder will be put out for competitive bidding, although the
exact number that will be built is still under consideration.
NAVSTAR GPS/Block IIF Satellites |
| PAYLOAD
CAPABILITIES |
| Types of Services |
Navigation |
| Downlink frequencies |
1572.42 MHz and 1227.6 MHz (L-Band) 2227.5
MHz (S-Band) |
| CORE BUS
SPECIFICATIONS |
| Prime Contractor |
Boeing
|
| Platform |
|
| Launch Mass |
?
kg (? lbm) |
| Design Life |
15
years |
STRUCTURE |
| Dimensions (H x W x L) |
244
x 197 x 197 cm (8 x 6.47 x 6.47 ft) |
| Construction |
|
POWER SYSTEM |
| Payload Power
(EOL) |
2.440
kW |
| Solar Arrays |
|
| Batteries |
|
ATTITUDE CONTROL SYSTEM |
| Stabilization |
three-axis
stabilized |
|
