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Features
International Conference Focuses
on Low-Energy Trajectories, Lagrange Points, Weak Stability Boundaries.
Mathematical dynamics-based
theory and powerful numerical simulations have been fused to
develop orbits and mission design concepts. The main purpose
of 'New Trends in Astrodynamics and Applications', which ends
today in College Park MD, is to bridge the gap between theoretical
and applied astrodynamics by bringing together prominent people
in the critical fields. Other goals include discussion of non-chemical
high-energy propulsion, dynamical astronomy and space policy
issues. The main organizer of the event is Ed Belbruno, who developed
the first systematic application of chaos to space travel called
Weak Stability Boundary theory. In 1991 it was used to find a
new route to the Moon successfully used by the Japanese spacecraft
Hiten. It also played a key role in the salvage of the satellite
HGS-1 using the Moon in 1998. Other topics covered include ballistic
capture; halo orbits; low-thrust transfers; algorithms; high-energy
nuclear, electric and plasma propulsion; and space policy issues.
Speakers include Wendell Mendell, Robert Farquhar, Jeff Xia and
Martin Lo. It is important to remember that from Lagrange Point
1 any spot on the Moon is reachable with minimal energy. Info
Ed Belbruno, belbruno@math.princeton.edu.
Sea Launch, Intelsat Agree to New Contract. Following
a decision to cancel their 10-01 mission, Intelsat Global Service
Corporation has recently re-signed Sea Launch Company, LLC, as
their firm future launch service. This year, Sea Launch will
deliver Intelsat's 10-02 payload into geosynchronous orbit using
a Proton vehicle instead of the previously contracted Zenit-3SL
rocket. Although preparations were well underway for the Intelsat
10-01 mission, Sea Launch is now well prepared to meet the needs
of this next assignment, according to Sea Launch president Jim
Maser. He also said that the new contract "reflects the
strong relationship already established
and reiterates Intelsat's
confidence in Sea Launch's growing record of reliability and
accuracy." "Our experience in working with Sea Launch
has been nothing but exemplary
they exceeded our expectations,"
added director of Intelsat's Launch Vehicle Program Office Terry
Edwards. Sea Launch, LLC, with five missions planned for 2003,
is based in Long Beach, CA and provides cost-effective, heavy-lift
launch services for commercial satellite customers from the Equator,
the most advantageous point for sending spacecraft into Geostationary
Orbit. Info: http://www.sea-launch.com
Space Frontier Foundation Looks Toward New Era. Space
Frontier Foundation founder Rick Tumlinson remains optimistic
about future space plans despite the loss of a potential source
of funding from the dot-coms, many of whom went out of business
after the economic downturn. "I do see signs that arising
from the ashes of these disappointments, there is a new hope
for our cause ... the seeds of a new space revolution have been
sown," he writes in the current issue of Space Front,
SFF's quarterly journal. The foundation has reorganized in a
way that will distribute leadership among its members and create
chances for more involvement. "I am excited, as I see a
more mature and serious community growing from the Foundation
we created over 13 years ago," writes Tumlinson. He cites
the growing list of private enterprises that are gaining momentum
and credibility for space and lunar programs including TransOrbital's
Lunar Orbiter, LunaCorp's negotiation for a TV commercial filmed
aboard the ISS, Dennis Tito's historic trip as the first private
citizen to tour space and Celestis space memorial services. Writes
Tumlinson, "The space frontier community is ... a community
of leaders who are no longer naively throwing themselves at the
glass ceiling that keeps us locked on this rock, but who are
finding a thousand new ways to go around and through it to lead
the breakout onto space for which we stand!" Info: www.spacefrontierfoundation.org.
Taiwan Issue Is the Political Hurdle in Sino-US Cooperation
in Space. The recent success of the Shenzhou-4 mission once
again raises the question among the space community of whether
the United States should begin to cooperate with this emerging
space power. "I really don't think America is taking this
seriously," said Paul Dickson, author of the book, Sputnik:
The Shock of the Century, according to Leonard David of Space.com.
"Americans may wake up some morning in the not so distant
future to hear that the Chinese have planted their flag on the
lunar surface," warned Dickson. U.S. State Department's
charges against Hughes and Boeing, that the firms illegally passed
rocket technology to China in the 1990s, have been regarded as
Washington's response to Beijing's recent success in space. Although
NASA officials have showed willingness to work with their Chinese
counterparts, whether to cooperate in space with China is not
NASA's decision to make, as John Logsdon of the Space Policy
Institute at George Washington University pointed out. The key
policy issues to be handled between the two nations are the Missile
Technology Control Regime (MTCR) and the Nuclear Non-Proliferation
Treaty (NNPT). But as long as the U.S. continues to sell advanced
weapons to Taiwan, China will unlikely compromise its sovereignty.
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