ISS-60 mission


Main tasks

ISS-59/60

ISS-60/61

ISS crew:

Commander -
Ovchinin Alexey
Flight engineers:
Nick Hague
Christina Koch
Alexandr Skvortsov
Luka Parmitano
Andrew Morgan


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News


RSC Energia:The Council of Chief Designers has held a meeting on flight tests of Upper Stage DM-03 for for the launch of spacecraft Spektr-RG

May 22, 2019

On Friday, May 17, RSC Energia (a part of State Corporation Roscosmos) held a meeting of the Council of Chief Designers on flight tests of the Upper Stage (US) DM-03 for the launch of spacecraft (SC) Spektr-RG.

Based on the results of the meeting the Council of Chief Designers has approved the authorization to proceed with the US fuelling and further activities under the plan of the integrated launch vehicle processing for launch of the SC Spektr-RG.

The upper stage 11S861-03 (DM-03) developed and manufactured by RSC Energia is one of the main domestic upper stages intended for launching spacecraft (SC) from low Earth orbit to high-energy orbits, including the geostationary orbit (GEO), high circular and high elliptical orbits, as well as trajectories for departure to the Moon and the planets of the Solar System.

The upper stage 11S861-03 is based on Block D, which was developed for the manned lunar program as a part of the N1-L3 system, to support the transfer of the manned lunar vehicle L3 from the Earth-Moon trajectory to the circumlunar orbit. Subsequently, Block D from the N1-L3 system was adapted to serve as the upper stage of Proton LV, and its first successful flight was as a part of the L1 system (with Proton LV) on March 10, 1967. After the program N1-L3 was terminated, and since there were no missions where the stage needed to operate in space for long periods of time, the stage design was modified for use in new mission plans the duration of which did not exceed 12 hours. Thus, the mass and performance of the stage were significantly improved. Since the time of the original Block D, more than 13 design versions have been developed, including Block DM-03 (US 11S861-03).

The key features of the Block DM-type upper stages, which define their capability, are:

  • use of environmentally-friendly propellant components;
  • the ability to perform multiple restarts of the main engine during flight in zero gravity, which enables optimized profiles for spacecraft injection;
  • high performance of the orbital module which makes it possible to deliver payloads into their target orbits in a minimum of time;
  • high precision of payloads injection into their target orbits;
  • the ability to downlink telemetry during the entire mission, including when outside the coverage of the ground tracking stations – via a relay satellite.

 

Launches

September 25, 2019
LV Soyuz-2.1a with SC Soyuz MS-15 is planned
August 22, 2019
LV Soyuz-2.1a with SC Soyuz MS-14 is launched

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