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SpaceX launched twin communications satellites for House Norway – Spaceflight Now

August 12, 2024
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SpaceX launched twin communications satellites for House Norway – Spaceflight Now
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An illustration of the 2 Arctic Satellite tv for pc Broadband Mission (ASBM) program satellites on orbit. Illustration: Northrop Grumman

SpaceX accomplished its second launch of the weekend with a mission for House Norway. The corporate launched its Falcon 9 rocket for the Arctic Satellite tv for pc Broadband Mission (ASBM).

The satellites, known as ASBM-1 and ASBM-2, are designed to supply each army satellite tv for pc communications in addition to business broadband connectivity within the northern polar area. Liftoff occurred at 7:02 p.m. PDT (10:02 p.m. EDT 0202 UTC).

The Falcon 9 first stage booster supporting the mission, B1061 within the SpaceX fleet, launched for a twenty second time, tying it with B1062 for essentially the most flights of a primary stage booster. B1061 beforehand launched the Crew-1 and Crew-2 astronaut missions; two Transporter rideshare launches; and 10 Starlink flights amongst others.

About eight-and-a-half minutes after liftoff, B1061 will land on the SpaceX droneship, ‘Of Course I Nonetheless Love You.’This marked the a hundredth booster touchdown on this droneship in addition to the 337th booster touchdown to this point.

Arctic communication

The pair of ASBM satellites had been constructed on Northrop Grumman’s GEOStar-3 satellite tv for pc bus and every weighs about two tons (about 4,000 kilos). They’re about 3 x 3 x 4 meters (9.8 x 9.8 x 13.1 toes) and with their photo voltaic panels prolonged, they’ve a complete wingspan of 27 meters (88.6 toes).

The satellites will launch to a extremely elliptical orbit, permitting them to entry the Arctic area, one which many different geostationary satellites are unable to succeed in. House Norway, one of many foremost companions behind the satellites, stated they may use a so-called “Three Apogee Interval” with its highest orbital altitude being 43,500 km and the bottom being 8,100 km.

The satellites will function in the identical orbital aircraft eight hours aside at a 63-degree inclination. The ASBM program was created in 2019 to carry connectivity to the world north of the 65-degree North latitude.

The mission is a joint operation between the U.S. House Drive, Northrop Grumman and House Norway, which is owned by the Norwegian Ministry of Commerce, Trade and Fisheries. Onboard are a number of payloads for each the U.S. and Norwegian militaries together with a radiation monitor for the European Fee.

The business communications firm, Viasat, additionally has its World Xpress (GX) Ka-Band payload onboard as nicely, which is able to enable it “to supply seamless broadband to aerospace, maritime and floor customers working within the Excessive North,” in accordance with Northrop Grumman. Viasat stated that the GX10A and GX10B payloads mark “the primary time the Viasat community will incorporate payloads on this orbit offering devoted Arctic protection.”

ASBM-1 satellite tv for pc enters thermal vacuum environmental testing at Northrop Grumman’s satellite tv for pc manufacturing facility in Dulles, Virginia. Picture: Northrop Grumman

The U.S. House Drive’s House Programs Command delivered its two payloads for integration in 2022. These are the Enhanced Polar Programs-Recapitalization (EPS-R) payloads. They had been constructed by Northrop Grumman’s Strategic House Programs Division and are described as “an Extraordinarily Excessive Frequency (EHF) Army Satellite tv for pc Communications (MILSATCOM) system designed to supply 24/7 safe, anti-jam, low likelihood of detection/intercept communications for U.S. forces working within the Arctic area.”

Having hosted payloads onboard these Norwegian satellites allowed SSC to carry their capabilities on-line “three years forward of schedule with potential financial savings of as much as $900 million.” This may also be the primary time {that a} House Drive payload is hosted on a non-U.S. satellite tv for pc.

“This profitable payload supply highlights the diligent work finished by your entire authorities and contractor crew,” stated Ernest Finney, EPS-R payload supervisor inside SSC’s Army Communication & Positioning, Navigation and Timing directorate, in a 2022 assertion. “We’re excited to start integration and take a look at with the host house autos and to supply this vital operational functionality to the warfighter.”

The Northrop Grumman-built ASBM-1 and ASBM-2 satellites on the firm’s satellite tv for pc manufacturing facility in Dulles, Virginia. Picture: Northrop Grumman

One other payload onboard is the Management and Planning Phase (CAPS), which is described as a “single software program baseline, which consolidates section command, management and planning of its legacy Enhanced Polar System (EPS) and future EPS-Recapitalization (EPS-R) payloads.” That was additionally offered by Northrop Grumman.

“The accomplishment of this key milestone was actually a joint effort and speaks to the excellent teamwork between Northrop Grumman and our EPS-R program workplace. The crew obtained and coordinated an unlimited quantity of technical information which was vital to confirm that every one section and ingredient necessities had been met. We stay up for the brand new floor system getting into operations,” stated 1st Lt. Brooke Kunzelman, SSC EPS-R Floor Phase lead, in a 2023 assertion.

The dual spacecraft may also carry an X-Band army broadband payload for the Norwegian Armed Forces.

The mission emblem for the Arctic Satellite tv for pc Broadband Mission launch. Picture: Northrop Grumman



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