Progr-to-sink
February 11, 2014
Categories: ISS, MCC, Progress, Science

Progress M-20M cargo vehicle, undocked from the ISS on February 3, 2014, that has been performing controlled flight for 8 days during which scientific experiment was carried out on its board, will be deorbited on February 11, – Mission Control Centre representative reported.

Another stage of “Curve: scientific experiment is successfully finished. According to the schedule “Progress will be sank in non-navigational region on February 11. The engines will be ignited for deorbit maneuver at 18.59 Moscow time, the spacecraft will enter the atmosphere at about 19.37 Moscow time.

The destruction of the vehicle starts at 19.42, the debris will fall in non-navigational region of the Pacific Ocean ant 19.48 Moscow time”, – the spokesman stated.

Progress M-20M has been a part of the ISS from July 28,2013. The Curve scientific experiment is aimed at microacceleration level detection, development
of mathematical model of gravitational conditions onboard the station and exploration of onboard systems operating modes impact on the ISS flight conditions.

The experiment description states: “in course of the flight there appear micro accelerations that may exceed rating acceptable for gravity sensitive experiments. That’s why these levels has to be controlled, the development of mathematic models that will enable to determine current micro acceleration levels and predict micro gravity level onboard the station for a given period of time.

“Curve” experiment was started by ISS-1 mission and continues up to the present time. In this period (ISS-1 – ISS-26) about 546 communication sessions was conducted due to which about 3 Gigabytes of information was received. The onset of convection due to the constant micro accelerations onboard the ISS, accelerations connected with station reboost maneuvers, dockings and undocking with Progress-M and Soyuz vehicles was experimentally proved.

Progress cargo vehicles have been launched since 1972. Since then more than 130 launches was performed with only one of them being a crush at that. Progress M-12M was lost on August 24, 2011 as a result of Soyuz-U booster crash.

Progress M020M flew to the ISS on accordance with the short 6-hours rendezvous scheme while Progress M-19M got to the ISS in 2 days. Progress M-16M, progress M-17M and progress M-18M cargo vehicles delivered the cargoes to the ISS within 6 hours instead of 2 days. Up to Progress M-16M (that was the first to fly to the ISS according to the schor scheme in August 2012) all cargo vehicles flew in accordance with 20days scheme.

The short one was tested on cargo vehicles to use it later for Soyuz manned spacecraft flights. At the present time two Soyuz manned spacecraft have already successfully flown to the ISS according to the short docking scheme.

Image credit – NASA

More from this category:
1_930122
June 5, 2019

On 4 June 2019, in accordance with the flight program of the International Space Station (ISS), the “Progress MS-10″ cargo spaceship, having completed its mission,…

full story
pHP7qPvT97Q
September 7, 2015

ISS orbit was adjusted today, on September 7, 2015. According to calculations by MCC ballistics and navigational support service specialists Progress M-28M cargo vehicle thrusters…

full story
957683354h1u
July 31, 2014

The facilities for Vostochny spaceport have been entirely produced.  There is no schedule delay. That was the subject of discussion during the visit of Roscosmos…

full story
3815407597
December 19, 2018

Specialists at the “Vostochny” Cosmodrome on the Refueling Station completed the refueling of the “Fregat” upper stage with fuel components. The upper stage is transported…

full story
Johnson-Space-Center
July 12, 2013

As GCTC press office reports Russian crew members of 38/ 39 ISS mission Oleg Kotov and Sergey Ryazansky and Roscosmos cosmonaut Mikhail Tyurin who is…

full story
Kirobo-1024x680
November 19, 2013

“Japanese astronaut Koichi Wakata who flew to the ISS on November 7, 2013 onboard Soyuz TMA-11M spacecraft will communicate with Kirobo robot for the first…

full story
5079626015
April 18, 2019

On April 17, 2019, the visit to Russia of Sultan bin Salman bin Abdulaziz Al-Saud, Prince of Saudi Arabia, chairman of the board of directors…

full story
посадка
March 11, 2014

Soyuz TMA-10M spacecraft with Roscosmos cosmonauts Oleg Kotov and Sergey Ryazansky and NASA astronaut Michael Hopkins onboard undocked from the Russian segment of the ISS…

full story