Each of the three launches has put 10 new satellites into orbit, gradually replacing the old Iridium satellites, still in service after almost two decades. The launch will re-use the Falcon 9 which was used in the February launch of the CRS-10 resupply mission to the International Space Station.
SpaceX launched its Falcon 9 rocket on Monday carrying 10 satellites to bolster the global data communications network for Virginia-based company, Iridium. This means that Falcon 9's first stage rocket will becoming down faster with less fuel to slow its descent than missions to lower orbits.
A two-hour launch window opens at 6.53pm Florida time.
Once the satellite is detached, the Falcon9 will bend back towards Earth and land on the "Of Course I Love You" spaceport vessel, which will be waiting in the Atlantic Ocean.
United Launch Alliance could try again this weekend to launch its Atlas V rocket with a top-secret payload for the U.S. National Reconnaissance Office. When the present launch is finished, SpaceX will rapidly swing to its next mission in Cape Canaveral, Florida. EchoStar will tap into the satellite's 24 Ku-band transponders for its DTH broadcasting operation. The satellite will help provide media access across North America and expand current coverage to the Gulf of Mexico and the Caribbean, according to EchoStar. Viewing from the center is included in the price of admission while those who want a closer look have to buy tickets to get within four miles of the launch. The white rocket blasted off at 5:37 am (1237 GMT), before sunrise, from Vandenberg Air Force base in California. There's a reinforcement launch date available on Tuesday at 8:31 AM ET.