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Archives for: October 2007

Moon Society congratulates China on successful launch of Chang'e-1 probe towards the Moon

by kokhmmm Email

From President Peter Kokh

October 24, 2007: XICHANG - The launch of China's first lunar probe Chang'e-1, on a Long March CZ-3A booster, was successful, a Chinese official announced Wednesday evening at the Xichang Satellite Launch Center in southwest China's Sichuan Province.

Li Shangfu, director of the Xichang launch center, made the announcement after the orbiter successfully entered the earth orbit and unfolded its solar panel, paving the way for its transfer to the lunar orbit.

Chang'e is expected to orbit the Moon for a year, testing technology for future missions and studying the lunar environment and surface regolith. Based on the DFH-3 Comsat bus, it has a mass of 2350 kg. Compare that with 3000 kg for Kaguya and 2180 kg for NASA's Lunar Reconnaissance Orbiter.

The 130 kg payload includes a stereo camera system to map the lunar surface, an altimeter to measure the distance between the spacecraft and the surface, a gamma/X-ray spectrometer to study the overall composition and radioactive components of the Moon, a microwave radiometer to map the thickness of the lunar rego-lith, and a system of space environment monitors to collect data on the solar wind and near-lunar region.

Chang'e is named after a fairy goddess who in a Chinese legend flies to the Moon.

The Road to the Moon and Timeline
http://www.cnsa.gov.cn/n615709/n772514/n772543/images/1292674.gif

Chang'e's path to the Moon will be similar to Kaguya's. After perigee on each of three Earth orbits, a burn will extend its apogee higher to 51,000 km, 71,000 km and 120,000 km with orbital periods 16 h, 24 h and 48 h respectively.

A final translunar injection burn will place Chang'e on route to the Moon where it will go into a polar orbit around the Moon.

Burns at the first three perilunes (point of closest approach to the lunar surface) will lower the apolune, reducing the orbit period from 12 h to 3.5 h to 127 min at which the orbit will be circularized. After a checkout period, the science mission will begin.

Mission Objectives
http://en.wikipedia.org/wiki/Chang'e_program

1. Drawing "pictures" of the moon and obtaining three-dimensional images of the lunar surface. Dividing the basic landforms and structures of the lunar surface and initially making outline graphs of lunar geology and structures, so as to provide a reference and basis for later soft landings. The orbit of Chang'e 1 around the moon will provide complete coverage, including areas near the north and south poles not covered by previous missions.

2. Probing useful elements on the moon surface and analyzing the elements and materials, primarily making maps of the distribution of various elements on the moon's surface. China hopes to expand the number of the useful elements to 14, compared with the five kinds previously probed by the United States, and will conduct an overall prospect evaluation on some useful resources on the moon's surface.

3. Probing the features of lunar soil and evaluating its depth, as well as the amount of helium-3 resources.

4. Probing the space environment between 40,000 km and 400,000 km from the earth, recording data on the primitive solar wind and studying the impact of solar activity on the earth and the moon.

Moon Society Comment:

The worldwide Lunar Community congratulates China on its successful launch of its ambitious Chang'e-1 lunar orbiter, China's first planetary mission. Following Japan's successful launch of its own lunar orbiter, Kaguya, just 6 weeks ago on September 13th, this launch is the second salvo of an international effort, dubbed The Lunar Decade, to learn more about the Moon, with emphasis on preparation for manned Moon landings planned by several nations: India, China, Russia, and the US (NASA).

We are further encouraged that two additional major lunar orbiter missions are just around the corner. India's Chandrayaan-1 is scheduled for launch in five and a half months on April 9, 2008. NASA's Lunar Reconnaissance Orbiter will follow a year from now, in October 2008. The next two years should see a dramatic increase in public attention on the Moon as our picture of the Moon grows ever more detailed, answering many questions, but probably raising as many more, as always.
According to the Beijing Declaration, the nations involved in this effort are coordinating their efforts especially as to calibration of instruments and interchange of data, for the optimum improvement in our picture of the Moon, its origin, history, ongoing evolution, and resources significant for human pioneers.

The momentum of activities taking us back to the Moon, first for more information, then to establish permanent human presence, continues to increase. The international scope of this effort is gratifying as it provides considerable insurance that the effort will continue, even should never predictable political vagaries in the United States, limit, stretch out, or even cancel NASA's current plans to establish a science outpost at one of the Moon's poles.

Other nations are also planning human visits, and eventual outposts: China, India, and Russia. India, China, and Japan also are very much aware that the use of lunar resources could make possible solar power satellites that would make it possible for them to phase out dirtier power generation methods, chiefly those relying on coal.

In the United Space, while NASA has been reluctant to look beyond the scope of what it is budget to do, the National Security Space Office (NSSO) has found Space-Based Solar Power (SBSP) to be an especially promising way to reduce US dependence on foreign-oil and as a way to reduce global warming. The Moon Society applauded this report, joined a 13 member alliance to support it, and intends to aggressively push the plan. Whereas NASA is currently restricted to planning a science outpost, the NSSO plan, if implemented, would involve industrial civilian settlements on the Moon, more in keeping with the Society's mission. The SBSP initiative would not fight for NASA funds, but be funded by the Department of Energy and/or the Department of Defense, removing the perennial worry over what Congress will or won't do in support of NASA.

China Sources:
www.clep.org.cn/index.asp?modelname=eng\en-news
www.cnsa.gov.cn/n615709/n772514/n772543/93744.html

NASA Source:
http://nssdc.gsfc.nasa.gov/planetary/prop_missions.html

Wikipedia Source:
http://en.wikipedia.org/wiki/Chang'e_program

Other:
www.planetary.org/explore/topics/chang_e_1/

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Moon Society Joins new 13-Member Space Solar Alliance for Future Energy (SSAFE)

by kokhmmm Email

Link: http://ssafe.org/

From Moon Society President Peter Kokh

October 10, 2007 -- We are used to NASA being the source of most space initiatives. But times are rapidly changing. The Space Prize phenomenon, after the long awaited success of the X-Prize Challenge, now seems to have developed a self-sustaining momentum with prize-driven developments likely to become a major force in the realization of human activity into and in space. Now the Defense Department's National Security Space Office (NSSO) has led a study group to investigate space-based solar power (SBSP) and has found SBSP to be an especially promising way to reduce US dependence on foreign-oil and as a way to reduce global warming. At a National Press Club event, today, sponsored by NSS (the National Space Society), the NSSO released its findings. Buzz Aldrin was one of many notables on hand.

http://spacesolarpower.files.wordpress.com/2007/10/final-sbsp-interim-assessment-release-01.pdf

But NSS, determined to take maximum advantage of this opportunity, had put together in advance a 13-organization alliance to push Space Based Solar Power. SBSP is key to the very existence and focus of one of the two organizations whose merger gave birth to NSS in 1987, the L5 Society, which promoted the ideas of Dr. Gerard O'Neill to use lunar resources to build solar power satellites to secure an abundant clean energy future for Earth. Space Settlements would house the workers who assembled these satellites. The NSS Space Settlements Committee, of which I am a member, has been focusing on ways to promote a demonstration of the technologies involved. My own personal role has been to work on a 2-phase demonstration as more logical, and much less likely to raise opposition. Look for more on that in the November 2007 issue of Moon Miners' Manifesto.

As for the Moon Society, focused as we are on the creation of "an Earth-Moon Economy" which will involve substantial civilian settlement of the Moon, promotion of this scenario is very important. True, there are competing energy scenarios: Dr. Criswell's Lunar Solar Arrays, and Dr. Kulcinski's Helium-3 fusion, using relatively abundant lunar He-3. It is not the Society's role to favor any one of these scenarios over the others, but to promote the development of all three, letting "technology pick the winners."

A full list of the current thirteen members, see our article (thanks to James Gholston)

www.lunarpedia.org/index.php?title=Space_Solar_Alliance_for_Future_Energy

Society members invited to participate in NSSO study

• Dr. Peter J. Schubert, Senior Director for Space & Energy Research, Packer Engineering, Inc., Naperville, IL (Key Expertise: lunar ISRU, propellantless propulsion, hydrogen storage, nanotechnology, MEMS, materials processing – high temp and electronic, intellectual property creation)

• Charles F. Radley, Associate Fellow AIAA, Spacecraft Systems Consultant, Micro Aerospace Solutions, Inc., Key Expertise: Spacecraft Systems Engineering

• Arthur P. Smith, Cofounder Alternative Energy Action Network. Other affiliations: American Physical Society (employer), Brookhaven National Lab. Key Expertise: Basic physics & materials issues, economic analysis. Smith's blog study had caught NSSO attention:

www.altenergyaction.org/mambo/index.php?option=com_content&task=view&id=129&Itemid=27

Dr. Schubert is a current Moon Society Board member. Charles Radley is current Moon Society Vice-President. Arthur Smith served as a Moon Society Board member from 2003-04.

Also on the NSSO team is Moon Society Advisor Geoffrey A. Landis Ph.D., Scientist, Power and In-space Propulsion Division NASA John Glenn Research Center Key Expertise: Solar energy, advanced concepts, physics, electrical engineering. Several others are well known to us.

Advantages of this study being done outside NASA

The NSSO study will not compete with other missions and initiatives in the NASA budget. Nor will it be perceived as "another 'make work' scheme for NASA. The involvement of the Defense Department may alarm some, but as it is clear that the DoD wants private enter-prise involvement, the foreseen solar powersat network would be for the benefit of more than the military. In fact, the committee recommends that the US government be an "anchor tenant" only.

Most of important of all, as a DOD initiative, it is much more likely to be funded by Congress, than if it were to compete with Space Science and the Moon effort in NASA's budget.

Opposition is sure to come, especially from vested energy interests -- from those corporations who now have a stranglehold on world energy supplies and do not relish sharing the pie with newcomers. It is precisely to make an end-run around this opposition that, as an individual, I am introducing a 2-phase approach, concentrating on a first phase with enormous economic appeal but which will inevitably serve as a springboard for a complete system.

Coming in MMM -- Starting in the November 2007 issue of Moon Miners' Manifesto, we will run a series of articles on this very critical subject area.

A long road ahead

Much research is needed before we can start talking about construction of a demonstrator system. The SBSP study report also finds that:
"although SBSP holds great promise to deliver clean and renewable energy to all nations of the world, the potential environmental impacts of the various systems and mitigation options to minimize those impacts require greater study."
In short, we need to be sure that the system of power beaming through Earth's atmosphere has minimal impact on the atmosphere itself and on living creatures, both airborne and on the surface in the areas where the vast rectenna arrays will be located. Previous research had tended to indicate that such impact would be minimal and acceptable. But we need to be sure.

Significantly not mentioned

From our point of view, the deployment of hundreds of Solar Power Satellites makes environmental and economic sense only if they are built out of lunar materials. We have to work hard to make this point, based on early but careful analysis of several studies including one done by Seattle Lunar Group Studies (SLuG), the think tank of an earlier iteration of the Seattle L5 chapter, which indicated that a solar power satellite of set power output could be built of 92% lunar materials at a (greater) weight penalty of only 8%. This study needs to be repeated given what we know today, twenty years later. Earth-launched SPS systems would require thousands of very heavy lift vehicle launches, with an unacceptable environmental impact, defeating one of the two major purposes. But using lunar materials is going to raise alarm bells for some, though it is precisely what we in the Moon Society very much want to see happen.

Building an SPS from lunar materials means that we can not rely on using the latest in photovoltaic technology for low weight high efficiency solar energy collection. We must use cruder materials with lower efficiency. On the other hand glass-glass composite strut and space frame platforms could prove to be superior in many respects than construction using the latest in terrestrial metal alloys. It is imperative that glass-glass composite technology first demonstrated in the late 1980s as an effort of Space Studies Institute, but then neglected, be resumed in earnest and advanced up the "technology readiness scale."

Rectennas, the giant collectors needed to receive beamed energy from space, need not be built on empty barren, unproductive land. Studies to date indicate that they could be built over agricultural areas and other productive environments without foreseen problems. A rectenna "net" would spread over a few square miles.

NSSO recommendations for enabling legislation

The group recommends that both federal and state laws be examined to remove impediments and emplace enabling legislation. SBSP should be qualified for favorable treatment on the same grounds as other non-grid electrical suppliers such as small hydroelectric and wind power generators. "The U.S. Government should increase and accelerate its investments in the development and demonstration of key component, subsystem, and system level technologies that will be required for the creation of operational and scalable SBSP systems."
Further, the study reports its conviction that "a small amount of entry capital by the US Government is likely to catalyze substantially more investment by the private sector." "A national investment in SBSP may return many times its value." Energy companies concur.

To the reader

We recommend that in the interests of becoming better informed of all the identified issues, challenges, and opportunities involve, readers and members would do well to download and browse over the entire (pdf) report.

http://spacesolarpower.files.wordpress.com/2007/10/final-sbsp-interim-assessment-release-01.pdf

Meanwhile, the Moon Society, and Moon Miners" Manifesto, will take advantage of every opportunity to promote this venture, use it as a focus of our societal and chapter outreach, and help bring the public up to speed. It is unfortunate that Al Gore, in his book and documentary "Inconvenient Truth" did not focus at all on space based solutions.

We live on an island. It is just plain stupid not to fish in the sea.
Earth is an island, space energy & resources, our fish.

Kudos to the NSSO!
We can be proud of our Moon Society Involvement, which will continue. - PK

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