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  B612 Foundation's Sentinel Space Telescope

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Author Topic:   B612 Foundation's Sentinel Space Telescope
Robert Pearlman
Editor

Posts: 27328
From: Houston, TX
Registered: Nov 1999

posted 06-19-2012 05:17 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
B612 Foundation advisory
B612 Foundation to announce first privately funded deep space mission

On June 28, 2012, the B612 Foundation will announce its plans to build, operate and launch the world's first privately funded deep space mission — a space telescope to be placed in orbit around the Sun.

We will create the first comprehensive dynamic map of our inner solar system showing the current and future locations and trajectories of Earth-crossing asteroids, paving the way to protect the Earth from future impacts and opening up the Solar System to future exploration.

Speakers at the June 28 press conference to be held in the Morrison Planetarium at the California Academy of Sciences:

  • Ed Lu, Chairman & CEO, former Space Shuttle/ISS/Soyuz Astronaut
  • Rusty Schweickart, Chairman Emeritus, Lunar Module Pilot, Apollo 9
  • Scott Hubbard, Project Architect, Stanford University, former Dir., NASA Ames
  • Harold Reitsema, Mission Director, former Dir. Science Mission Dev., Ball Aerospace
The B612 Foundation believes that humanity can harness the power of science and technology to protect the future of civilization on this planet, while extending our reach into the solar system.
See here for discussion of the B612 Foundation's Sentinel mission.

Robert Pearlman
Editor

Posts: 27328
From: Houston, TX
Registered: Nov 1999

posted 06-28-2012 08:45 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
B612 Foundation
Sentinel Mission Fact Sheet

Sentinel is a space-based infrared (IR) survey mission to discover and catalog 90 percent of the asteroids larger than 140 meters in Earth's region of the solar system. The mission should also discover a significant number of smaller asteroids down to a diameter of 30 meters. Sentinel will be launched into a Venus-like orbit around the sun, which significantly improves the efficiency of asteroid discovery during its 5.5 year mission.

The spacecraft and instrument use high-heritage flight proven deep space systems, originally developed by NASA, to minimize technical and programmatic risks. These heritage missions include large space based telescopes (Spitzer, Kepler), a large format camera made up of many individual detectors (Kepler), and a cryogenically cooled instrument (Spitzer). By detective and tracking nearly all of the Near Earth Objects greater than 50 meters in diameter, Sentinel will create a map of the solar system in Earth's neighborhood enabling future robotic and manned exploration. The Sentinel data will also identify objects that are potentially hazardous to humans to provide an early warning to protect the Earth from impact.

Features

  • Most capable NEO detection system in operation
  • 200 deg anti-sun Field of Regard, with a 2x5.5 deg Field of View at any point in time: scans 165 square degrees per hour looking for moving objects
  • Precise pointing accuracy to sub-pixel resolution for imaging revisit, using the detector fine steering capability
  • Designed for highly autonomous, reliable operation requiring only weekly ground contact
  • Designed for 5.5 years of surveying operations. Actively cooled to 40k using a Ball Aerospace two-stage, closed-cycle Stirling-cycle cryocooler
  • Ability to follow-up on objects of interest
Benefits
  • Provides highly specialized design specifically optimized for NEO detection and discovery
  • NEO detection efficiency increased using IR-detector (5 to 10.4 microns). Venus-like orbit
  • Provides an astrometric accuracy of 0.2-arcseconds for any detected NEOs (typical); NEO orbits determined in as few as two detections, with multiple visits to each region of the sky.
  • On board detection processing reduces data downlink volume, minimizes contact requirements
  • Provides a targeted follow-up observation capability, enabling time-critical revisit of high-priority targets
  • Heritage draws lineage from great observatories and pioneering scientific missions: Kepler, Spitzer, Deep Impact

Robert Pearlman
Editor

Posts: 27328
From: Houston, TX
Registered: Nov 1999

posted 06-28-2012 09:19 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
B612 Foundation release
The B612 Foundation Announces the First Privately Funded Deep Space Mission

New Infrared Space Telescope In Solar Orbit, Up To 170 Million Miles From Earth, Will Protect Humanity, Map The Inner Solar System, And Enable Exploration

In a press conference at the California Academy of Sciences Thursday morning, the B612 Foundation unveiled its plans to build, launch, and operate the first privately funded deep space mission - SENTINEL - a space telescope to be placed in orbit around the Sun, ranging up to 170 million miles from Earth, for a mission of discovery and mapping. The Foundation leadership and technical team include some of the most experienced professionals in the world to lead this effort.

"The orbits of the inner solar system where Earth lies are populated with a half million asteroids larger than the one that struck Tunguska (June 30, 1908), and yet we've identified and mapped only about one percent of these asteroids to date, said Ed Lu, Space Shuttle, Soyuz, and Space Station Astronaut, now Chairman and CEO of the B612 Foundation. "During its 5.5-year mission survey time, Sentinel will discover and track half a million Near Earth Asteroids, creating a dynamic map that will provide the blueprint for future exploration of our Solar System, while protecting the future of humanity on Earth."

Asteroids are a scientific and economic opportunity in that they contain the original building blocks of the Solar System. They are targets for future human exploration, and may contain valuable raw materials for mining. These asteroids are also a threat in that they can pose great risk to humanity here on Earth. Taking advantage of these opportunities and dealing with these threats require not only knowing where each of these individual asteroids is now, but also projecting where they will be in the future.

"For the first time in history, B612's Sentinel Mission will create a comprehensive and dynamic map of the inner solar system in which we live - providing vital information about who we are, who are our neighbors, and where we are going," said Rusty Schweickart, Chairman Emeritus of B612, and Apollo 9 Astronaut. "We will know which asteroids will pass close to Earth and when, and which, if any of these asteroids actually threaten to collide with Earth. The nice thing about asteroids is that once you've found them and once you have a good solid orbit on them you can predict a hundred years ahead of time whether there is a likelihood of an impact with the Earth."

Advances in space technology, including advances in infrared sensing and on-board computing, as well as low-cost launch system, have opened up a new era in exploration where private organizations can now carry out grand and audacious space missions previously only possible by governments.

"The B612 Sentinel mission extends the emerging commercial spaceflight industry into deep space - a first that will pave the way for many other ventures," said the former Director of NASA Ames Research Center Dr. Scott Hubbard, B612 Foundation Program Architect and Professor of Aeronautics and Astronautics at Stanford University. "Mapping the presence of thousands of near earth objects will create a new scientific database and greatly enhance our stewardship of the planet."

Sentinel Space Telescope

The B612 Foundation is working with Ball Aerospace, Boulder, CO, which has designed and will be building the Sentinel Infrared (IR) Space Telescope with the same expert team that developed the Spitzer and Kepler Space Telescopes. It will take approximately five years to complete development and testing to be ready for launch in 2017-2018. The launch vehicle of choice is the SpaceX Falcon9.

Harold Reitsema, Sentinel Mission Director and former Ball Aerospace Director of Science Mission Development will lead the technical team. "The Sentinel Space Telescope is a space-based Infrared (IR) telescope with a 20-inch diameter mirror that will depart Earth, headed inwards into the Solar System 40 million miles. It will perform what is known as a gravitational slingshot maneuver off the planet Venus to enter its final orbit around the sun. This will provide the optimal vantage point to map the locations and trajectories of Earth-crossing asteroids."

Sentinel will scan the entire night half of the sky every 26 days to identify every moving object with repeated observations in subsequent months. Data collected by Sentinel will be sent back to the Earth via NASA's Deep Space Network, which also will be used for tracking and navigation. Data collected by Sentinel will be transmitted first to the Laboratory for Space Physics, Boulder, Colo., and then distributed to education, research, scientific institutions and governments via NASA's Minor Planet Center, Cambridge, Mass. As part of the B612 Foundation-NASA Space Act Agreement of June 2012, NASA JPL (NEO Center), Pasadena, Calif. will conduct a comprehensive hazard analysis, making orbit determinations and threat assessments.

Education and Public Involvement

The B612 Foundation is working with the California Academy of Sciences and the Planetary Society in the development of education and research programs during the next decade and is looking to expand this research and education network worldwide and encourages all interested parties, including students to contact B612 directly via its website.

"We believe our goal of opening up the solar system and protecting humanity is one that will resonate worldwide, said Lu. "We've garnered the support and advice of a number of individuals experienced with successful philanthropic capital campaigns of similar size or larger, and will continue to build our network."

"We've been given a gift, and the gift is that we have the ability now to go out there and actually do something which positively affects the future of humanity on Earth."

About B612

The B612 Foundation aims to build, launch, and operate the world's first privately funded deep space telescope mission to create the first comprehensive dynamic map of our inner solar system, identifying the current and future locations and trajectories of Earth crossing asteroids. The B612 Foundation believes that humanity can harness the power of science and technology to protect the future of civilization on this planet, while extending our reach into the solar system.

Individuals, schools and other academic and research institutions with interest in joining B612 Foundation efforts and events are encouraged to sign up at the Foundation website.

See here for discussion of the B612 Foundation's Sentinel mission.

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