Home / Science / Egyptian observation satellite launched by Russian rocket – Spaceflight Now

Egyptian observation satellite launched by Russian rocket – Spaceflight Now



Credit: Roscosmos

A Soyuz rocket, using a Frigate upper stage, delivered an Egyptian Earth observation satellite to a polar orbit at a height of over 650 kilometers on Thursday, and overcame a clear technical problem after having Launched from Baikonur Cosmodrome in Kazakhstan, according to Russian news reports.

Rakan Soyuz-2.1b took off from pad 31 at Baikonur at 1647 GMT at 14:47 local time with EgyptSat-A, a remote sensing satellite built by the Russian manufacturer of the RSC Energia space industry to provide the Egyptian military and other authorities monitor high resolution images.

Energia and Roscosmos, the Russian space organization, confirmed the Soyuz-1.b rocket and its Fratat upper stage delivered the EgyptSat-A spacecraft to the planned track. The US military tracking data set mission set the satellite in a path more than 400 miles across the earth, at a slope of 98 degrees toward the equator.

But Russian news reports suggested that the mission may have experienced a close conversation during the climb in orbit.

Russia's Tass news agency reported the EgyptSat-A satellite and its Frigate upper stage was tracked in a lower than expected circulation after three-step Soyuz booster put the rocket's upper unit around nine minutes after the liftoff.

But Tass reported that the burns at Frigate's upper stage seemed to have corrected the obvious loss of performance, which may have occurred during the third stage engine burning. The frigate upper stage was expected to ignite twice to deliver EgyptSat-A to its intended orbit.

News agency RIA Novosti also reported that the start list was observed during a lower level than Thursday's flight, which awarded the information to two sites

Finally, the Russian officials said EgyptSat-A at the expected height and the solar panels on the satellite were swallowed according to plan.

The Soyuz-2.1b variant of Russia's venerable Soyuz rocket family uses a different upper stage engine than the version used for crew launches. Soyuz-2.1b uses an RD-0124 engine with four nozzles, while the Soyuz-FG and Soyuz-2.1a configurations use an RD-0110 third-stage engine.

The next Soyuz crew launch with two NASA astronauts and a Russian cosmonaut's way to the International Space Station is scheduled for March 14th.

The next launch of a Soyuz rocket-bearing satellite was scheduled for February 26 from French Guiana, a commercial mission led by French launch supplier Arianespace. That flight is slated to use a Soyuz ST-B rocket, a variant that uses the same third-stage design as the Soyuz-2.1b starter that flew Thursday with EgyptSat-A.

The upcoming launch from French Guiana was driven back to at least 24 hours until February 27 to give engineers more time to review EgyptSat-A launch data, according to Greg Wyler, founder and chairman of OneWeb, who plans to launch their first six broadband satellites on Soyuz.

At least (a) one day slip to launch, "Wyler tweeted late Thursday." Usch. Happy to see the EgyptSat A launch was successful, but needs to review more data on that launch before continuing. Waiting patiently. "

Thursday's Soyuz flight with EgyptSat-A was Russia's first space launch of the year.

EgyptSat-A replaces EgyptSat 2 Earth Imaging Satellite, which failed in an orbit 2015, a year in a planned 11-year mission. -A satellite was made with money from an insurance payout from the loss of EgyptSat 2, according to Tass.

Russian news reports said the evolution of EgyptSat-A costs about $ 100 million.

The satellite weighs more than a ton full-burned, and Tass reported EgyptSat-A has several enhancements over the EgyptSat 2 design, including improved solar batteries and a high-speed radio with ground stations.

The spacecraft's electro-optical imaging system includes a ground shield telescope and camera that can accommodate surface functions as small as 3.3 meters (1 meter). ), with similar properties to the failed EgyptSat 2 satellite, EgyptSat-A is the third Egyptian Earth observation satellite built in R Iceland, after the EgyptSat 1 spacecraft launched in 2007 and EgyptSat 2 launched in 2014.

EgyptSat-A is owned by Egypt's national remote sensing and space authority as its predecessor Science, an authority tasked with collecting and studying satellite images of Earth. EgyptSat-As's primary users are expected to include Egyptian military and security forces, intelligence analysts, emergency services, environmental monitoring experts, and the agricultural sector.

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Follow Stephen Clark on Twitter: @ StephenClark1 .


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