YAMAL-200 Communications Satellite
Spacecraft Yamal-100, Yamal-200 were developed by the Corporation
based on the S.P.Korolev RSC Energia-designed Multi-purpose
Satellite Bus under a contract with Gascom within the framework
of the Russian Federal SpaceProgram.
Yamal-100 SC |
Yamal-200 SC |
|
|
Yamal-100 SC of the first modification, that meets the world telecommunications space service market requirements, operated in GEO from September 6, 1999 to August 2011, for the first time having exceeded a ten-year design operating life in GEO, is a demonstrative example of implementing advanced science-intensive space technologies of the XXI century in new developments.
Yamal-200 is the second, more powerful, modification of the SC design in the Yamal series, and is designed for working
within Yamal satellite communications and broadcasting system, which provides advanced communications links to organizations
within the Russian gas industry, as well as telecommunications services to users in Russia and abroad, which include voice
and fax communications, videoconferencing, transmission of digital data and TV programs, connection to the Internet.
In the design of these satellites, RSC Energia used its fully developed Multi-purpose Unpressurized Satellite Bus,
allowing, on very short notice, to implement on its basis different special-purpose SC projects (for navigation, Earth
remote sensing, monitoring, etc.) that widely use the modular principle in their design.
The Corporation production facilities have the capacity to manufacture up to 6-8 spacecraft of this type per year.
These facilities meet Russian and international requirements and standards, have an Assembly-and-Test Center and a High-Cleanliness
Industrial Room that are unparalleled in the Russian rocket and space industry and also has testing facilities allowing
to run all kinds of tests (strength, vibration, acoustic, thermal/vacuum integrated electrical tests, etc.) on the
assembled spacecraft in order to verify and guarantee that their reliability meets customer requirements.
Both Yamal-200 SC (SC-1 and SC-2), just like their predecessors, have undergone a complete scope of tests to develop control
and monitoring interfaces with the Yamal SC Mission Control Center (MCC), with MCC continuously monitoring SC systems
health from lift-off to the target orbit insertion. The work and tests incorporated to the maximum extent possible
the lessons learned during development and operation of Yamal-100 SC, and there were new technical solutions aimed
at assuring a higher reliability and surviveability of the SC.
Yamal-200 satellites were launched on November 24, 2003 at 9 hours 22 minutes, Moscow Time. Proton-K launch vehicle
put the orbital module into its reference orbit. The stack of the two spacecraft was delivered from the reference orbit
to the target orbit by an upper stage of the Block DM type (11C861-01). After Yamal-200 SC stack separates into SC-1
and SC-2, the spacecraft independently transit from the target orbit into their GEO orbital positions. Both spacecraft
function normally.
Performance data |
SC-1 |
SC-2 |
Orbit |
GEO |
GEO |
Mass, kg |
1360 |
1320 |
Power supply system output, W:
-during communications
session
-rated |
3580
2800
|
3580
2800
|
Payload power, W |
2000 |
2000 |
The number of active channels (72 MHz) |
9 (C-band)
6 (Ku-band)
|
18 (C-band) |
Launch vehicle |
Proton with Block DM upper stage
as the 4-th stage (dual satellite launch) |
Design life in orbit, years |
12.25 |
12.25 |
Orbital slot |
90°E |
49°E |