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 |
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The first-modification SC Yamal-100, designed to meet the
requirements of the world market in telecommunication space
services, operates in the geostationary orbit since September
6, 1999, and is the first outstanding example in the Russian
spacecraft industry of the implementation of the state-of-the-art,
21st-century technologies in a new design.
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.
We congratulate all the participants
in this work on the successful launch of the satellites
and thank them for the work they have performed!
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
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