INTERNATIONAL SPACE STATION PARTNERS ADJUST TARGET DATES FOR FIRST LAUNCHES, REVISE OTHER STATION ASSEMBLY LAUNCHES
June 1, 1998
Michael Braukus
Headquarters, Washington, DC
(Phone: 202/358-1979)
James Hartsfield
Johnson Space Center, Houston, TX
(Phone: 281/483-5111)
Bruce Buckingham
Kennedy Space Center, FL
(Phone: 407/867-2468)
Release: H98-93
International Space Station Partners
Adjust Target Dates for First Launches, Revise Other Station Assembly
Launches
Representatives of all nations involved in the International Space
Station have agreed to officially target a November 1998 launch for
the first station component and to revise launch target dates for the
remainder of the 43-flight station assembly plan.
In meetings of the Space Station Control Board and the Heads-of-Agency
on May 30 and 31 at NASA's Kennedy Space Center, FL, all station
partners agreed to target launch dates of Nov. 20, 1998, for the
Control Module today named Zarya (Russian word for sunrise) and Dec.
3, 1998, for Shuttle mission STS-88 with Unity. Changes in the
construction schedule for the third station component, the
Russian-provided Service Module, led the partners to reschedule the
first assembly launches. The Service Module will house the first
station occupants and the European Space Agency-provided Data
Management System.
Although the new dates move the launch of the first station component,
Zarya, from June to November, the target dates agreed upon for many
major station milestones during the latter portions of the five-year
assembly plan are little changed. In addition, several enhancements
to the station's assembly have been made, including an exterior
"warehouse" for spare parts and a Brazilian-provided carrier for
exterior station components that are launched aboard the Space
Shuttle.
The International Space Station partners set an April 1999 target
launch date for the Russian Service Module. The first station crew --
Commander Bill Shepherd, Soyuz Commander Yuri Gidzenko and Flight
Engineer Sergei Krikalev -- will be launched aboard a Russian Soyuz
spacecraft in summer 1999 to begin a five-month inaugural stay.
Launch of the U.S. laboratory module is set for October 1999.
Launches of other laboratory modules provided by Europe, Japan and
Russia, will take place later in the assembly sequence. The
Canadian-provided station robotic arm, or Space Station Remote
Manipulator System, will be launched in December 1999. Scientific
research will commence aboard the station early in the year 2000.
The expansion from a three-person crew to a six-person capability is
planned in November 2002. The final launch in the assembly sequence
is set for January 2004, only one month later than in the previous
assembly plan. Some issues in this assembly sequence remain under
review and will be resolved at a Space Station Control Board meeting
in September.
NASA continues the development of an Interim Control Module (ICM) as a
contingency against further delays in the Service Module and as a
potential additional propellant capability for a more robust space
station. A decision concerning the configuration of the ICM will be
made later this year.
During the Heads-of-Agency meeting, the Russian Space Agency (RSA)
stated that the Russian government has made the International Space
Station its number one civil space priority. RSA noted that progress
on the Service Module continues to meet a launch in April 1999. RSA
also is working to deorbit Mir as early as safely possible, with a
goal of developing a potential to deorbit by July 1999. The
international partners expressed their concern with delays to the
International Space Station program to date and brought to the
attention of RSA that it is critical to all participating nations
that the station program schedule is met.
The agencies' leaders also acknowledged the atmosphere of cooperation,
the accomplishments and the successful achievements of the
Shuttle-Mir Program (Phase I) and look forward to the smooth
transition to Phases 2 and 3 of the International Space Station. In
addition, they highlighted the ongoing International Space Station
training currently under way for the first four station crews.
Full details of the current International Space Station Assembly
Sequence, Revision D, are available in a NASA fact sheet. The fact
sheet may be obtained from the internet at the International Space
Station Web:
http://station.nasa.gov.
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