Rising majestically from the fog bank surrounding Vandenberg Air Force Base in California, the SpaceX Dragon launch vehicle has successfully pushed Canada's latest Radarsat satellite into orbit.
In addition, the Dragon's stage one plowed back through the fog, accompanied by a sonic boom, and landed securely on SpaceX's Landing Zone 4 (LZ-4) at Vandenberg. Falcon 9’s first stage for launch of this RADARSAT Constellation Mission previously supported Crew Dragon’s first demonstration mission in March of 2019.
The RADARSAT Constellation Mission (RCM) is the evolution of the RADARSAT Program and builds on Canada’s expertise in Earth Observation (EO) from space. It consists of three identical C-band Synthetic Aperture Radar (SAR) EO satellites.
Built by MDA, a Maxar company, the three-satellite configuration of the RCM will provide daily revisits of Canada's vast territory and maritime approaches, including the Arctic up to four times a day, as well as daily access to any point of 90 percent of the world's surface. The RCM will support the Government of Canada in delivering responsive and cost-effective services to meet Canadian needs in areas such as maritime surveillance, ecosystem and climate change monitoring as well as helping disaster relief efforts.
- The RCM will help create precise sea ice maps of Canada’s oceans and the Great Lakes to facilitate navigation and commercial maritime transportation. Each satellite also carries an Automatic Identification System receiver, allowing improved detection and tracking of vessels of interest.
- The highly accurate data collected by RCM will enable farmers to maximize crop yields while reducing energy consumption and the use of potential pollutants.
- Like RADARSAT-2, the RCM will support relief efforts by providing images of areas affected by disasters to help organize emergency response efforts and protect the local population.
SpaceX’s Space Launch Complex 4E at Vandenberg Air Force Base has a long history dating back to the early 1960s. Originally an Atlas launch pad activated in 1962, SLC-4E was in active use until its last Titan IV launching in 2005.
SpaceX’s groundbreaking was in July of 2011 and extensive modifications and reconstruction of the launch pad were completed 17 months later. SLC-4E consists of a concrete launch pad/apron and a flame exhaust duct. Surrounding the pad are RP-1 and liquid oxygen storage tanks and an integration hangar.
Before launch, Falcon 9’s stages, fairing and the mission payload are housed inside the hangar. A crane/lift system moves Falcon 9 into a transporter erector system and the fairing and its payload are mated to the rocket. The vehicle is rolled from the hangar to the launch pad shortly before launch to minimize exposure to the elements.