Roscosmos will develop new methods of flight simulation to prevent PE

© RIA Novosti / Sergey Mamontovaya in fotomonster Roscosmos at MAKS-2017. Archival photoRoscosmos will develop new methods of flight simulation to prevent PE© RIA Novosti / Sergey Mamontovaya the image Bank

Roscosmos will develop new methods of flight simulation and flight control characteristics of launch vehicles to prevent incidents similar to what happened with the «Frigate», said the state Corporation on Tuesday.

On Tuesday, the first Deputy head of Roscosmos Alexander Ivanov told reporters that the reason for the fall in the Atlantic ocean, the upper stage «Fregat» with 19 satellites became incorrect operation of software algorithms in conjunction with the unaccounted for compilation of the characteristics of the azimuth of the launch from the new Vostochny space centre.

Ivanov stressed that the results of the work of the Commission, any comments on the operation of the spaceport and the launch vehicle «Soyuz» is not revealed. The upper stage «Fregat», its components and the propulsion system worked in full accordance with the selected algorithm. However, due to the conjunction of the above reasons at the moment of separation of the booster from the carrier error in the rotation was 363 degrees. The frigate began to turn, but just don’t have time to work as according to cyclogram flight included cruise engine, which gave an impetus for an incorrectly oriented block, and then began his fall into the ocean.

As noted in the release, «there was such a combination of parameters of the launch pad Baikonur, azimuth of flight of the carrier rocket and the upper stage, which had not met before». It was not detected during ground testing a ballistic trajectory in accordance with current techniques.

«To immediately remedy the situation be adjusted by the control system algorithm of the spatial orientation of the upper stage «Fregat» and existing regulations, has already been given orders to develop a new modern complex of methods of simulation and control flight characteristics of the launch vehicles», — stated in the message.

A separate Commission will deal in detail the organizational issues and prepare proposals for the assessment of responsibility of officials for decisions affecting the completeness of prelaunch testing of the mission.

Rocket «Soyuz-2.1 b» with the upper stage «Fregat» and 19 satellites launched in 8.41 GMT on 28 November and staff has reached an intermediate orbit. Later, Roskosmos, reported that the satellite «meteor-M» №2-1, which was supposed to separate first, the install failed because the device is missing on the target orbit, and then confirmed the collapse of the upper stage with the satellites into the ocean.

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