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Ovchinin Alexey
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Christina Koch
Alexandr Skvortsov
Luka Parmitano
Andrew Morgan


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RSC Energia developed a one-orbit rendezvous profile

April 25, 2019

The RSC Energia specialists developed a one-orbit flight profile of SC which implies rendezvous with the International Space Station within about 2 hours.

The main advantage of such a profile is the reduction of the time spent by cosmonauts in a small volume of SC. One more advantage of this one-orbit rendezvous profile is a quick delivery of various biomaterials to the Station to conduct scientific experiments onboard the ISS. In addition, the quicker is the spacecraft rendezvous with the station, the more is the saving of propellant and other resources required to support the flight.

The implementation of a one-orbit rendezvous profile will require to adhere to a number of stringent ballistic conditions for relative position of the spacecraft and the Station. However, a special procedure developed by the Energia specialists will allow to use it even more often than a four-orbit rendezvous strategy which has already become familiar. The higher is the latitude of the launch site from which a launch is performed, the more efficient is the use of this procedure. In such a manner, for example, launches using this one-orbit rendezvous profile from the Vostochny Cosmodrome can be carried out without preliminary orbit corrections of the ISS and ideally – even on a daily basis.

- We already use a two-orbit rendezvous profile which was successfully tested during two flights of cargo vehicles in July 2018 and this April. In the future we plan to use it for manned launches as well. A two-orbit rendezvous profile gives a capability to deliver crews and cargo to the ISS within the record short time. But launches using a one-orbit rendezvous profile will allow us to achieve an absolute record. And we have all conditions to ensure the pre-eminence of Russia in this direction, - Rafail Farvazovich Murtazin, Deputy Head of the Design-Theoretical Support Center said.

The development test of a one-orbit rendezvous profile may be necessary to implement in the future two-launch flight profiles to the Moon, proposing the docking procedure in near-earth orbit with the upper stage using low-boiling propellant components. The service life of such an upper stage after launch is small, that is why a quick rendezvous and docking with it - is an extremely important task. One more field of application with regard to quick rendezvous profiles of SC with the Station is rescue operations in space where the time factor can become critical.

In the opinion of RSC Energia ballisticians, it is possible to implement a one-orbit rendezvous profile already in 2-3 years.

RSC Energia is the leading enterprise in the rocket and space industry, the prime organization for manned space systems. The corporation is working on the creation of automatic space and rocket systems (launch vehicles and interorbital transportation), high-tech systems for various purposes to be used in non-space spheres.

Roscosmos State Corporation is a state corporation established in August 2015 to carry out a comprehensive reform of the rocket and space industry in Russia. Roscosmos State Corporation ensures the implementation of state policy in the field of space activities and its regulatory and legal regulations, as well as places orders for the development, production and supply of space equipment and space infrastructure facilities. The functions of the State Corporation also include the development of international cooperation in the space sphere and the creation of conditions for using the results of space activities in the socio-economic development of Russia.

 

 

Launches

August 22, 2019
The launch of LV Soyuz-2.1a with SC Soyuz MS-14 is planned
July 31, 2019
LV Soyuz-2.1a with CV Progress MS-12
is launched

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