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Climate 80-P.c-Favorable for Tomorrow’s Atlas V Mission for Challenge Kuiper

October 6, 2023
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Climate 80-P.c-Favorable for Tomorrow’s Atlas V Mission for Challenge Kuiper
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Tomorrow’s Atlas V flight will ship the prototype KuiperSat-1 and KuiperSat-2 payloads into low-Earth orbit. Photograph Credit score: ULA

After certainly one of its “lightest” years on document, when it comes to missions a minimum of, United Launch Alliance (ULA) will choose up the tempo tomorrow, when it flies the second “Mighty Atlas” of 2023 out of storied Area Launch Advanced (SLC)-41 at Cape Canaveral Area Power Station, Fla. Aboard the highly effective Atlas V booster—making its 99th outing and eighth within the “501” configuration, outfitted with a 17.7-foot-diameter (5.4-meter) Brief Payload Fairing (SPF), no strap-on boosters and a single-engine Centaur higher stage—would be the first prototype pair of satellites for Amazon’s Challenge Kuiper broadband web community.

Video Credit score: ULA

Climate circumstances alongside the Area Coast are predicted to be round 80-percent-favorable, characterised by scattered clouds, potential remoted showers, good visibility and temperatures hovering round 27 levels Celsius (81 levels Fahrenheit). Earlier on Wednesday, the Launch Readiness Assessment (LRR) was concluded, beneath the management of ULA Launch Director James Whelan, and produced a definitive “Go” standing.

Unveiled by Amazon in 2019, Challenge Kuiper—whose supposed constellation measurement of three,236 satellites alludes to the colossal Kuiper Belt of icy our bodies within the outer Photo voltaic System—is meant to extend world high-speed, low-latency broadband entry and assist shut the “digital divide”, significantly in underserved areas of america and worldwide. “We’re decided to make inexpensive broadband a actuality for purchasers and communities world wide,” stated Amazon founder and CEO Jeff Bezos.

Rousing liftoff of the fifth Atlas V to fly within the 501 configuration in December 2013. Photograph Credit score: Robert C. Fisher/AmericaSpace

In line with Amazon, Challenge Kuiper will serve a “big selection of shoppers”, together with particular person households, faculties, hospitals, companies, authorities businesses, catastrophe reduction operations, cell operators and organizations working with out dependable web connectivity. The in-house system leverages Amazon’s world logistics and operations “footprint”, in addition to Amazon Net Companies (AWS) networking and infrastructure “to serve a various, world buyer base”.

“We’ve designed our satellites and dispenser system to accommodate a number of launch autos,” stated Challenge Kuiper’s vp of know-how, Rajeev Badyal. “This offers us the pliability to make use of many alternative rockets and suppliers to launch our satellite tv for pc system.”

An Atlas V 501 launches the Air Power’s AFSPC-5 mission in Could 2015, carrying the X-37B and Lightsail payloads. Photograph Credit score: Mike Killian/AmericaSpace

In October 2020, the Federal Communications Fee (FCC) voted unanimously to approve Challenge Kuiper. And over the next two years, Amazon unveiled designs for the satellites’ Ka-band phased-array antennas for use in buyer terminals, announced substantial investment in prototype manufacturing amenities in Redmond, Wash., and unveiled a trio of outdoor-mounted customer terminal designs.

Final yr, Amazon signed the largest commercial launch-vehicle procurement contract in history for as much as 83 launches over a five-year interval. Key suppliers are ULA’s Vulcan-Centaur, Kent, Wash.-headquartered Blue Origin’s New Glenn and Europe’s Ariane 6, developed by Paris, France-based Arianespace.

Video Credit score: Amazon

“Securing launch capability from a number of suppliers has been a key a part of our technique from Day One,” stated Badyal. “This strategy reduces danger related to launch car stand-downs and helps aggressive long-term pricing for Amazon. These giant, heavy-lift rockets additionally imply we are able to deploy extra of our constellation with fewer launches, serving to simplify our launch and deployment schedule.”

Underneath the April 2022 contracts, Paris, France-based Arianespace will fly 18 missions in help of Challenge Kuiper, while Blue Origin will launch 12 instances (with an choice for 15 extra) and ULA is tasked with 38 Vulcan-Centaur flights. It was famous that the ULA portion of the contract additionally coated “manufacturing and launch infrastructure to help the next cadence of launches” from SLC-41, “together with a brand new, devoted model of the Vulcan Launch Platform (VLP)”.

Solely days after the mammoth deal was introduced, in May of last year ULA named Chris Ellerhorst, beforehand director of technique, enterprise improvement and gross sales, as vp of its new Kuiper Program Workplace. Mr. Ellerhorst’s appointment, defined ULA CEO Tory Bruno, mirrored the standing of Amazon as “an vital buyer with an thrilling and significant mission”.

In help of Challenge Kuiper, ULA can be creating a second car processing facility to create parallel “launch lanes” for these high-cadence operations. The 38 Vulcan-Centaur missions adopted an April 2021 contract for 9 Atlas V launches to deploy the preliminary members of Challenge Kuiper from SLC-41, bringing to 47 the full variety of flights presently on ULA’s ticket.

Video Credit score: Amazon

In April 2023, Amazon reported its intent “to launch two prototype satellites to check the complete end-to-end communications community” earlier than yr’s finish, with an expectation that Challenge Kuiper “plans to be in beta with business prospects in 2024”. These twin “Protoflight” satellites shall be immediately inserted by Friday’s Atlas V into low-Earth orbit, at an altitude of 311 miles (500 kilometers), inclined 30 levels to the equator.

On 16 September, the time-honored Launch Car On Stand (LVOS) marketing campaign received underway, because the 107-foot-long (33-meter) Frequent Core Booster (CCB) was hoisted vertical into SLC-41’s Vertical Integration Facility (VIF). It was later joined by the interstage section, the rocket’s Centaur higher stage and the “boattail”, which types the lowermost portion of the payload fairing.

The Centaur higher stage is readied for hoisting atop the Atlas V Frequent Core Booster (CCB) throughout Launch Car On Stand (LVOS) operations final month. Photograph Credit score: ULA

Final week, ULA introduced that it was focusing on no sooner than 2 p.m. EDT on Friday, 6 October, to launch the Protoflight and on 28 September the payload fairing housing the 2 satellites was mounted atop the Mighty Atlas, topping off the stack at 196 ft (59.7 meters) tall. With the Atlas V’s CCB powering the stack for its preliminary uphill climb, the Centaur will execute a single “burn” to deploy the Protoflight satellites—designated “KuiperSat-1” and “KuiperSat-2”—into their desired orbits about 18 minutes after launch.

After deployment, Amazon will assume major command of the satellites. The Protoflight is predicted “so as to add real-world knowledge from area to Amazon’s outcomes from its intensive lab testing, fieldwork and simulation,” famous ULA, “and assist Amazon finalize plans forward of a full-scale satellite tv for pc deployment starting in 2024.”

An Atlas V 501 launches the X-37B long-duration min-shuttle in Could 2015. Photograph Credit score: Alan Walters/AmericaSpace

Making the eighth flight of its profession, the 501 variant of the Atlas V launched most not too long ago again in Could of 2020. First flown again in April 2010, it has efficiently delivered 5 flights of the U.S. Area Power’s Boeing-built X-37B long-duration mini-shuttle and a pair of extremely secretive payloads—NROL-41 in September 2010 and NROL-39 in December 2013—for the Nationwide Reconnaissance Workplace.

Tomorrow’s climate seems round 80-percent-favorable, in response to the Area Power’s Area Launch Delta 45 climate squadron and Launch Climate Officer (LWO) Melody Lovin, bettering to 85 % within the occasion of a 24-hour slippage to Saturday. “By Friday, the ridge throughout the japanese Continental U.S. weakens and shifts into the North Atlantic, loosening the strain gradient and thereby our winds and moisture ranges in time for launch day. Showers and thunderstorms can’t be utterly dominated out however needs to be on the remoted aspect Friday afternoon.”

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