Fwd: ILS Launches Proton-M with Inmarsat-5 F1

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From: "Gary Johnson" <gjohnson144@comcast.net>
Date: December 8, 2013 10:31:36 AM CST
To: "Gary Johnson" <gjohnson144@comcast.net>
Subject: FW: ILS Launches Proton-M with Inmarsat-5 F1

State Commission decided refueling ILV "Proton-M" with propellants

08.12.2013 11:56 ::

 

At the Baikonur Cosmodrome a meeting of the State Commission, which examined the results of the tests on the rocket launch complex (ILV) "Proton-M" with the upper stage (RB) "Breeze-M", intended for injection into orbit communications spacecraft (SC ) "Inmarsat-5F1."

 

After hearing reports of supervisors, the State Commission decided readiness space rocket propellants for fueling and launch.

 

In accordance with the timetable for the preparation starting calculations of rocket-space industry Russia conduct operations to RKN refueling propellants.

 

Roscosmos press service

 

 

Proton-M with UK's Inmarsat-5F1 takes off

December 08, 16:24 UTC+4

 

MOSCOW, December 08, 16:23 /ITAR-TASS/. Proton-M rocket with the UK's Inmarsat-5F1 took off on Sunday from Baikonur, press service of the Khrunichev centre reported.

 

"Today at 16:12 the launch of Inmarsat-5F1 from Baikonur was successful. The orbital block is due to separate from Proton-M at 16:21," the press service said.

 

© 2013 ITAR-TASS

 

 

 

ILS Proton-M launches Inmarsat-5 F1

December 8, 2013 by Chris Bergin

 

International Launch Services (ILS) have successfully launched another Russian Proton-M launch vehicle, tasked with lofting the Inmarsat-5 F1 satellite on a flight to its transfer orbit that will take over 15 hours to complete. Launch from the from the Baikonur Cosmodrome in Kazakhstan was on time at 12:12 GMT on Sunday.

 

Proton-M:

The Proton booster that launched the Inmarsat-5 F1 satellite was 4.1 m (13.5 ft) in diameter along its second and third stages, with a first stage diameter of 7.4 m (24.3 ft). Overall height of the three stages of the Proton booster was 42.3 m (138.8 ft).

 

The Proton vehicle has a heritage of nearly 400 launches since 1965 and is built by Khrunichev Research and State Production Center, one of the pillars of the global space industry and the majority owner of ILS.

 

The first stage consists of a central tank containing the oxidizer surrounded by six outboard fuel tanks. Each fuel tank also carries one of the six RD-276 engines that provide first stage power. Total first stage vacuum-rated level thrust is 11.0 MN (2,500,000 lbf).

 

Of a conventional cylindrical design, the second stage is powered by three RD-0210 engines plus one RD-0211 engine and develops a vacuum thrust of 2.4 MN (540,000 lbf).

 

Powered by one RD-0213 engine, the third stage develops thrust of 583 kN (131,000 lbf), and a four-nozzle vernier engine that produces thrust of 31 kN (7,000 lbf). Guidance, navigation, and control of the Proton M during operation of the first three stages is carried out by a triple redundant closed-loop digital avionics system mounted in the Proton's third stage.

 

The mission is utilizing a five-burn Breeze M mission design, utilizing the Supersynchronous Transfer Orbit mission design.

 

The first three stages of the Proton will use a standard ascent profile to place the orbital unit (Breeze M upper stage and the Inmarsat-5 F1 satellite) into a sub-orbital trajectory.

 

From this point in the mission, the Breeze M will per-form planned mission maneuvers to advance the orbital unit first to a circular parking orbit, then to an intermediate orbit, followed by a transfer orbit, and finally to a supersynchronous transfer orbit.

 

Separation of the Inmarsat-5 F1 satellite is scheduled to occur approximately 15 hours, 31 minutes after liftoff.

 

The target orbit at separation is aiming for a perigee of 4,341km and an apogee: 65,000 km with an inclination of 26.75 degrees.

 

This Inmarsat satellite is one of three Ka-band Inmarsat-5 satellites that were ordered from Boeing by the London based company, at a cost of about $1 billion under a fixed-price contract, with options.

 

The three 6,100kg BSS-702HP platform commercial spacecraft that will operate in geosynchronous orbit with flexible global coverage.

 

Each Inmarsat-5 satellite will carry 89 Ka-band beams that will operate in geosynchronous orbit with flexible global coverage. The satellites are designed to generate approximately 15 kilowatts of power at the start of service and approximately 13.8 kilowatts at the end of their 15-year design life.

 

"We remain focused on continuing to complete crucial milestones to successfully deliver this series of satellites," noted Craig Cooning, vice president and general manager of Boeing Space & Intelligence Systems. "The Inmarsat-5 series is built on our 702HP model of satellites, which is flight-proven with over 20 spacecraft in orbit."

 

The spacecraft has two solar wings with five panels, each of ultra triple-junction gallium arsenide solar cells. The BSS-702HP carries the xenon ion propulsion system (XIPS) for all on-orbit attitude control.

 

When operational, the Inmarsat-5 satellites will provide Inmarsat with a comprehensive range of global mobile satellite services, including mobile broadband communications for deep-sea vessels, in-flight connectivity for airline passengers and streaming high-resolution video, voice and data.

 

The Boeing satellites will provide Inmarsat with the ability to adapt to shifting subscriber usage patterns of high data rates, specialized applications and evolving demographics.

 

Also, in a separate arrangement, Boeing also entered into a distribution partnership with Inmarsat to provide L- and Ka-band capacity to key users within the U.S. government.

 

The launch marks the seventh ILS Proton launch in 2013, the 84th ILS Proton launch overall, the third Inmarsat satellite to be launched on Proton and the 16th Boeing satellite launched on an ILS Proton.

 

NASASpaceflight © 2005 - 2013

 

 

RussianSpaceWeb

 

Proton launches Inmarsat-5 F1 satellite

 

A Russian Proton rocket launched the first of three Inmarsat-5F satellites Sunday during its ninth mission in 2013.

 

A Proton-M rocket with Briz-M upper stage lifted off from Baikonur Cosmodrome's Pad 39 at Site 200 on Dec. 8, 2013, at 16:12 Moscow Time (12:12 GMT, 7:12 a.m. EST). The rocket was carrying the 6,100-kilogram Inmarsat-5 F1 satellite for the Inmarsat organization based in London, UK.

 

The separation of the satellite from the upper stage was scheduled for 07:43 Moscow Time on Dec. 9, 2013, (10:43 p.m. EST on December 8) or 15 hours 31 minutes after the liftoff of the mission.

 

Inmarsat-5 F1 mission history

 

The Inmarsat-5 F1 satellite and two of its successors are built by Boeing's Space and Intelligence Systems in California, US. The agreement to launch a trio of Inmarsat-5 satellites on three Proton rockets in 2013-2014 was announced on Aug. 1, 2011.

 

Based on the 702HP Ka-band satellite built by Boeing, Inmarsat-5 was conceived to form the constellation to support Inmarsat's Global Xpress network. Global Xpress was designed to offer seamless global coverage and deliver unprecedented mobile broadband speeds of up to 50MB/s for users in the government, maritime, enterprise, energy and aeronautical sectors. Inmarsat promised to invest an estimated amount of $1.2 billion in the Global Xpress program, which includes launch costs.

 

The launchof Inmarsat-5 F1 was initially expected in the first half of 2013 and in October 2013, the mission was scheduled for December 8. The spacecraft was delivered to Baikonur on Nov. 11, 2013.