CANADA Radarsat Constellation Mission Radarsat-1 Radarsat-2 RCM SLC-4E Vandenberg Air Force Base

Canada’s Three-Satellite Radarsat Constellation Stands Ready for Wednesday SpaceX Launch « AmericaSpace

A trio of equivalent satellites, each bearing the maple leaf of Canada, will rise to orbit on Wednesday, 12 June, from Area Launch Complicated (SLC)-4E at Vandenberg Air Drive Base, Calif., on a mission to offer comprehensive maritime surveillance, catastrophe administration and the assessment of varied ecosystems throughout the Arctic region. The Radarsat Constellation Mission (RCM) may also present day by day protection of greater than 90 % of the world’s surface.

Liftoff of the Upgraded Falcon 9 booster—boasting the reflown B1051 core stage, which beforehand saw service on the March flight of the Crew Dragon Demo-1—is due to occur at 7:17 a.m. PDT and will kick off SpaceX’s seventh mission of 2019 and its second of the yr from the West Coast. In readiness for Wednesday’s planned launch, a successful Static Hearth Check of the 9 Merlin 1D+ first-stage engines passed off on Saturday, 8 June. Approximately 9 minutes after liftoff, the B1051 core is scheduled to alight on Landing Zone (LZ)-4 at Vandenberg, marking only the second SpaceX touchdown on the West Coast landing pad since October 2018.

The long-awaited RCM will convey powerful C-band Artificial Aperture Radar (SAR) functionality to bear on the Canadian Arctic, offering every day revisit coverage, surveillance of ice, winds, oil air pollution and delivery lanes, the early warning, response and restoration from pure disasters and the important assessments of agriculture, forestry, wetlands and patterns of coastal change.

This will probably be SpaceX’s 15th flight out of Vandenberg since September 2013 and its first foray from the California launch website since it triumphantly closed out the Iridium NEXT constellation back in January 2019. In addition to the ultimate mission for Iridium, the Hawthorne, Calif.-headquartered group has also delivered Crew Dragon Demo-1 and the CRS-17 Dragon cargo ship to the Worldwide Area Station (ISS), together with the first operational flight of the Falcon Heavy, Israel’s ultimately-ill-fated Beresheet lunar lander and last month’s inaugural batch of Starlink web communications satellites. Following on from the RCM launch, the subsequent flight of the Falcon Heavy—laden with a battery of payloads for the Air Drive, NASA and different clients—is due to fly from historic Pad 39A on the Kennedy Area Middle (KSC) later in June.

Constructed by MacDonald Detwiler and Associates (MDA) of Richmond, British Columbia—now a subsidiary of Westminster, Colo.-based Maxar Technologies, Inc.—the RCM represents the third era of the long-running and extremely profitable Radarsat program. Its first element, the 6,000-pound (2,750 kg) Radarsat-1, was launched right into a 500-mile-high (800 km) Solar-synchronous orbit atop a Delta II booster from Vandenberg back in November 1995.

Outfitted with a strong SAR instrument at a single microwave frequency of 5.3 GHz within the C-band, Radarsat-1 represented Canada’s first business Earth remark satellite tv for pc and was shortly put to use in the fields of agriculture, cartography, hydrology, forestry, oceanography, geology, ice and ocean monitoring, the detection of oceanic oil-slicks and surveillance of the Arctic Ocean area.

Its big SAR antenna measured 49 ft (15 meters) in length and 5 ft (1.5 meters) in diameter and will cowl areas of 31 x 31 miles (50 x 50 km) and achieve imaging resolutions down to only 33 ft (10 meters). Meant to stay operational for a half-decade, Radarsat-1 truly endured for greater than 17 years until March 2013, when insurmountable technical difficulties within the getting older satellite tv for pc led it to be retired after virtually quadrupling its anticipated orbital lifetime.

By this time, its successor, Radarsat-2, was aloft. Launched from Baikonur in Kazakhstan atop a Soyuz-FG/Fregat booster in December 2007, it occupied an analogous orbit and remains lively to today, delivering imaging resolutions down to three.three ft (1 meter) in its “spotlight” mode and 10 ft (3 meters) in its “fine” mode. In addition to offering core capabilities in the areas of sea-ice mapping and ship-routing, iceberg detection, agricultural monitoring, marine surveillance for ships and detection of pollution, from mid-2009 onwards Radarsat-2 was put to work by the Canadian Forces for all-weather, day-and-night army surveillance of surface delivery in the Arctic, part of the Polar Epsilon challenge. In June 2016, MDA introduced that it will prolong this contract to RCM, by means of Polar Epsilon 2 (PE2), pledging to offer Canada’s Division of Nationwide Defence “with daily maritime information over millions of square kilometres from SAR imagery, all within minutes of imaging”.

Greater than a decade since Radarsat-2, the RCM mission presents a elementary paradigm shift, with no fewer than three satellites—each weighing round three,000 kilos (1,400 kg)—to be placed at an altitude about 370 miles (600 km) above the Residence Planet, at a near-polar inclination of 97.74 degrees to the equator. Orbiting at intervals approximately 30 minutes apart, the RCM triplets will supply complete SAR coverage of the Arctic between 4 and six occasions day by day, as well as all the landmass of Canada a minimum of as soon as every 24 hours. The RCM’s speedy revisit functionality allows it to watch the very same view and the very same location on Earth’s floor once each 4 days, as opposed to every 24 days presently achievable by Radarsat-2.

The RCM program extends again greater than a decade, with preliminary cupboard approval from the Canadian government granted in December 2004, after which methods necessities and the overall mission idea have been defined. Preliminary design of the satellites and ground phase adopted and the Mission Important Design Evaluate (CDR) was accepted by the RCM stakeholders by November 2015. By this level, manufacturing of the satellite buses by Canada’s Magellan Aerospace Corp. had begun, with round 300 individuals working on the trouble at its peak.

Two years ago, the structural fabrication of the satellites was completed and in Might 2017 the SAR antennas have been successfully tested—via a Tremendous Gantry Crane to hold them and counterbalance their weight to mimic microgravity circumstances of low-Earth orbit—at MDA’s facility in Montreal. In the course of the late spring and early summer time of 2018, the triplets underwent in depth Thermal Vacuum (TVAC) testing and final August Canadian Prime Minister Justin Trudeau inspected the almost-flight-ready RCM satellites and ceremonially helped set up a sheet of thermal blanketing onto considered one of them. Between July and the top of September, the three satellites have been delivered by street to the amenities of Area Techniques/Loral (SS/L)—one other subsidiary of Maxar—in Palo Alto, Calif., for pre-launch storage. They have been then transported to Vandenberg earlier this spring.

Owned and operated by the Canadian government, the RCM satellites are visually distinct from their two Radarsat massive brothers, with much smaller SAR antennas measuring solely 22 ft (6.7 meters) lengthy by 4.6 ft (1.4 meters) large and capable of resolutions as nice as three.3 x 10 ft (1 x three meters). Additionally they boast solely a single power-producing photo voltaic panel (versus two for their predecessors).

Once they have placed into orbit, the RCMs are each anticipated to remain absolutely useful for around seven years. Three main areas of focus embrace effective marine surveillance; natural catastrophe administration; and the safety of ecosystems. RCM knowledge will combine Automated Identification System (AIS) know-how with radar imagery to raised determine floor delivery and distinguish between open water and coastal areas. They may assist to make sure protected navigation in icy waters and help the number of appropriate sites for future wind-farms and guard towards illegal fishing.

RCM may even play a task within the forewarning and mitigation of natural disasters, together with floods, landslides, hurricanes and earthquake injury, as well as alerting and routing search-and-rescue groups and first responders in a well timed method. Lastly, the three satellites will accurately measure crop-yield traits over broad areas, monitor forest harvesting and regeneration, higher shield land-use around protected wildlife habitats and provide knowledge to help the conservation of wetlands and areas instantly affected by coastal erosion.



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