SOMA Small Explorer Acquistion.
Science Office for Mission Assessments: Explorer (EX) Acquisition
Explorer (EX) Announcement of Opportunity
Heliophysics Explorer Selection Announcement
Dwayne Brown
Headquarters, Washington
202-358-1726
dwayne.c.brown@nasa.gov
CONTRACT RELEASE : C13-100
NASA Selects Explorer Projects To Probe Earth's Upper Atmosphere
WASHINGTON -- NASA has selected a new satellite mission and a new space-based instrument to begin development as part of the agency's Heliophysics Explorer Program. The projects will provide space observations to study Earth's ionosphere and thermosphere.
The Ionospheric Connection (ICON) mission, led by Thomas Immel of the University of California, Berkeley, will probe the extreme variability of Earth's ionosphere with in-situ and remote-sensing instruments. Fluctuations in the ionosphere interfere with signals from communications and global positioning satellites, which can have an economic impact on the nation.
The Global-scale Observations of the Limb and Disk (GOLD) mission of opportunity, led by Richard Eastes of the University of Central Florida in Orlando, is an imaging instrument that will fly on a commercial communications satellite in geostationary orbit to image the Earth's thermosphere and ionosphere.
"One of the frontier areas of heliophysics is the study of the interface between outer space and the upper reaches of Earth's atmosphere," said John Grunsfeld, NASA associate administrator for science at NASA Headquarters, Washington. "These selected projects use innovative solutions to advance our knowledge of this relatively unexplored region. The two missions together will result in significantly more advances in our understanding of Earth's atmosphere and ionosphere than either would alone."
These two Explorer projects were selected from proposals submitted in response to the NASA Explorer announcement of opportunity in 2010. The proposals were judged to offer the best science value and feasible development plans among the six concept studies submitted to NASA in September 2012.
Costs for NASA Explorer missions, such as ICON, are capped at $200 million each (fiscal year 2011 dollars), excluding the launch vehicle. Explorer missions of opportunity, such as GOLD, are capped at $55 million each. The new missions are expected to launch in 2017.
The Explorer program is the agency's oldest continuous program. It is designed to provide frequent, low-cost access to space for principal investigator-led space science investigations relevant to the heliophysics and astrophysics programs in NASA's Science Mission Directorate in Washington.
The Explorer program has launched more than 90 missions since 1958, including Explorer 1 which discovered the Earth's radiation belts and the Nobel Prize-enabling mission Cosmic Background Explorer (COBE) mission. The program is managed by NASA's Goddard Space Flight Center for the Science Mission Directorate.
For more information about the Explorer program, visit:
For more information about NASA and space science, visit:
Astrophysics Explorer Selection Announcement
April 05, 2013
J.D. Harrington
Headquarters, Washington
202-358-5241
j.d.harrington@nasa.gov
RELEASE: 13-088
NASA Selects Explorer Investigations for Formulation
The Transiting Exoplanet Survey Satellite (TESS) and Neutron Star Interior Composition Explorer (NICER) were among four concept studies submitted in September 2012. NASA determined these two offer the best scientific value and most feasible development plans.
TESS will use an array of telescopes to perform an all-sky survey to discover transiting exoplanets ranging from Earth-sized to gas giants, in orbit around the nearest and brightest stars in the sky. Its goal is to identify terrestrial planets in the habitable zones of nearby stars. Its principal investigator is George Ricker of the Massachusetts Institute of Technology in Cambridge.
NICER will be mounted on the space station and measure the variability of cosmic X-ray sources, a process called X-ray timing, to explore the exotic states of matter within neutron stars and reveal their interior and surface compositions. The principal investigator is Keith Gendreau of NASA's Goddard Space Flight Center in Greenbelt, Md.
"The Explorer Program has a long and stellar history of deploying truly innovative missions to study some of the most exciting questions in space science," said John Grunsfeld, NASA's associate administrator for science in Washington. "With these missions we will learn about the most extreme states of matter by studying neutron stars and we will identify many nearby star systems with rocky planets in the habitable zone for further study by telescopes such as the James Webb Space Telescope."
NASA's Explorer program is the agency's oldest continuous program and is designed to provide frequent, low-cost access to space using principal investigator-led space science investigations relevant to the Science Mission Directorate's astrophysics and heliophysics programs. Satellite mission costs are capped at $200 million and space station mission costs are capped at $55 million.
The program has launched more than 90 missions. It began in 1958 with the Explorer 1, which discovered the Earth's radiation belts. Another Explorer mission, the Cosmic Background Explorer, led to a Nobel prize. NASA's Goddard Space Flight Center manages the program for the agency's Science Mission Directorate in Washington.
For more information about the Explorer program, visit:
http://explorers.gsfc.nasa.gov
For information about NASA, visit:
http://www.nasa.gov
Community Announcements
Headquarters, Washington Sept. 29, 2011
202-358-1726
dwayne.c.brown@nasa.gov
RELEASE: 11-328
NASA SELECTS SCIENCE INVESTIGATIONS FOR CONCEPT STUDIES
WASHINGTON -- NASA has selected 11 science proposals for evaluation as potential future science missions. The proposals outline prospective missions to study the Earth's atmosphere, the sun, the Milky Way galaxy, and Earth-like planets around nearby stars.
The selections were made from responses to Announcements of Opportunity for Explorer Missions and Explorer Missions of Opportunity released by the agency last November. The proposals were judged to have the best science value and feasible development plans.
"NASA continues to seek opportunities to push the cutting edge of science," said Paul Hertz, chief scientist for NASA’s Science Mission Directorate, Washington. "Innovative proposals like these will help us better understand our solar system and the universe.”
Five Explorer Mission proposals were selected from 22 submitted in February. Each team will receive $1 million to conduct an 11-month mission concept study. Mission costs are capped at $200 million each, excluding the launch vehicle. In addition, one Explorer Mission proposal was selected for technology development and will receive $600,000. Five Mission of Opportunity proposals were selected from 20 submissions. Each will receive $250,000 to conduct an 11-month implementation concept study. Mission costs are capped at $55 million each.
Following the detailed mission concept studies, NASA plans to select up to two of the Explorer Mission proposals and one or more of the five Mission of Opportunity proposals in February 2013. The missions would then proceed toward flight and some could launch by 2016.
The selected Explorer Mission proposals are:
-Ionospheric Connection Explorer (ICON) Thomas Immel, Principal Investigator (PI), University of California, Berkeley -- The mission would fly instruments to understand the extreme variability in our Earth's ionosphere, which can interfere with communications and geopositioning signals.
-Fast INfrared Exoplanet Spectroscopy Survey Explorer (FINESSE) Mark Swain, PI, Jet Propulsion Laboratory, Pasadena, California -- This proposal would use a space telescope to survey more than 200 planets around other stars. This would be the first mission dedicated to finding out what comprises exoplanet atmospheres, what conditions or processes are responsible for their composition, and how our solar system fits into the larger family of planets.
-Observatory for Heteroscale Magnetosphere-Ionosphere Coupling (OHMIC) James Burch, PI, Southwest Research Institute, San Antonio, Texas -- The mission would use a pair of spacecraft flying in formation to study the processes that provide energy to power space weather storms. These storms create auroras and other electromagnetic activity that can impact orbiting spacecraft operations.
-Transiting Exoplanet Survey Satellite (TESS) George Ricker, PI, Massachusetts Institute of Technology, Cambridge, Mass. -- Using an array of telescopes, TESS would perform an all-sky survey to discover transiting exoplanets, ranging from Earth-sized to gas giants, in orbit around the nearest and brightest stars in the sky. The mission's primary goal would be to identify terrestrial planets in the habitable zones of nearby stars.
-Atmosphere-Space Transition Region Explorer (ASTRE) Robert Pfaff Jr., PI, NASA's Goddard Space Flight Center, Greenbelt, Md. -- The mission would study the interaction between the Earth's atmosphere and the ionized gases of space. By flying excursions deep into the Earth's upper atmosphere, its measurements would improve satellite drag models and show how space-induced currents in electric power grids originate and evolve with time.
The selected Explorer Mission of Opportunity proposals are:
-Global-scale Observations of the Limb and Disk (GOLD) Richard Eastes, PI, University of Central Florida, Orlando -- This would involve an imaging instrument that would fly on a commercial communications satellite in geostationary orbit to image the Earth's thermosphere and ionosphere.
-Neutron star Interior Composition ExploreR (NICER) Keith Gendreau, PI, Goddard -- This mission would place an X-ray timing instrument on the International Space Station (ISS) to explore the exotic states of matter within neutron stars and reveal their interior and surface compositions.
-Coronal Physics Investigator (CPI) John Kohl, PI, Smithsonian Astrophysical Observatory, Cambridge, Mass. -- A solar telescope would be mounted on the ISS to investigate the processes that produce the sun's fast and slow solar wind.
-Gal/Xgal U/LDB Spectroscopic/Stratospheric THz Observatory (GUSSTO) Christopher Walker, PI, University of Arizona, Tucson -- This mission would launch a high altitude balloon with a one-meter telescope to provide a comprehensive understanding of the inner workings of our Milky Way galaxy and one of our galaxy's companion galaxies, the Large Magellanic Cloud.
-Ion Mass Spectrum Analyzer for SCOPE (IMSA), Lynn Kistler PI, University of New Hampshire, Durham -- This partner mission of opportunity would provide a composition instrument to the Japanese cross-Scale Coupling in the Plasma universE (SCOPE) mission. SCOPE will study fundamental space plasma processes including particle acceleration, magnetic reconnection, and plasma turbulence.
The proposal selected for technology development funding is:
-The Exoplanetary Circumstellar Environments and Disk Explorer (EXCEDE), Glenn Schneider, PI, University of Arizona, Tucson – The technology development effort will enable studies of the formation, evolution, and architectures of exoplanetary systems through direct imaging.
The Explorer program is the oldest continuous program at NASA. It is designed to provide frequent, low-cost access to space using PI-led space science investigations relevant to the agency's astrophysics and heliophysics programs. Initiated with the Explorer 1 launch in 1958 that discovered the Earth's radiation belts and including the Cosmic Background Explorer mission that led to Nobel prizes for their investigators, the Explorer program has launched more than 90 missions. It is managed by Goddard for NASA's Science Mission Directorate in Washington.
For more information about the Explorer program, visit:
January 14, 2011
The Federal Acquisition Regulations on small business subcontracting plans have been revised to set the minimum threshold at $650K (FAR 52.219-9). The Explorer 2011 AO (NNH11ZDA002O) has been corrected to indicate this change and the corrected version of the AO is posted in NSPIRES. The only changes are: in Section 5.5.1 Small Business Participation and in Appendix A Section XIII Small and Small Disadvantaged Business Subcontracting, the minimum contract value to which the FAR 52.219-9 regulations apply has been corrected from $500K to $650K.
The change in regulations also applies to contracts awarded in response to SALMON. However we are not correcting the version of SALMON that is posted in NSPIRES.
Questions may be addressed in writing or by e-mail to the Explorer Program Acquisition Scientist: Dr. Barbara L. Giles, Heliophysics Division, Science Mission Directorate, NASA Headquarters, Washington, DC 20546-0001, E-mail: HQ-Explorers@mail.nasa.gov.
Release Date: November 1, 2010
Notice of Intent to Propose Due: December 9, 2010
Proposals Due: February 16, 2011
Identification Number: NNH08ZDA009O (Explorer Science Missions of Opportunity)
Identification Number: NNH10ZDA001N (Explorer U.S. Participating Investigators)
On or about December 3, 2010, the following amendments to the Explorer Science Missions of Opportunity solicitation and the Explorer U.S. Participating Investigators solicitation will be posted on the NASA research opportunity homepage at http://nspires.nasaprs.com/.
Amendment No. 8 to the NASA Announcement of Opportunity "Stand Alone Mission of Opportunity Notice" (NNH08ZDA009O) will be posted at http://nspires.nasaprs.com/ (select "Solicitations" then "Open Solicitations" then "NNH08ZDA009O").
With this amendment, the NASA Science Mission Directorate (SMD) Announcement of Opportunity (AO) NNH08ZDA009O, "Stand Alone Missions of Opportunity Notice (SALMON) Appendix H7: Explorer 2011 Science Missions of Opportunity," is amended to (a) refine Education and Public Outreach requirements and (b) refine proposal page count restrictions and guidance.
Amendment No. 24 to the NASA Research Announcement (NRA) "Research Opportunities in Space and Earth Sciences (ROSES) 2010" (NNH10ZDA001N) will be posted at http://nspires.nasaprs.com/ (select "Solicitations" then "Open Solicitations" then "NNH10ZDA001N").
With this amendment, the NASA Research Announcement NNH10ZDA001N, "Research Opportunities in Space and Earth Sciences (ROSES) 2010 Appendix E.7: Explorer U.S. Participating Investigators," is amended to clarify requirements in Section 2.2.3, Duration of Awards.
Questions may be addressed in writing or by e-mail to the Explorer Program Acquisition Scientist: Dr. Barbara L. Giles, Ref.: Explorer EX AO, Heliophysics Division, Mail Suite 3R15, Science Mission Directorate, National Aeronautics and Space Administration, Washington, DC 20546-0001, E-mail: HQ-Explorers@mail.nasa.gov (subject line to read "Explorer EX AO").
Responses to all inquiries will be answered by e-mail and also posted to the EX AO FAQs (click here); anonymity of persons/institutions who submit questions will be preserved.
Subject: Explorer Solicitations to be Released
Release Date: November 1, 2010
Notice of Intent to Propose Due: December 9, 2010
Proposals Due: February 16, 2011
Identification Number: NNH10ZDA008J (Explorer AO)
Identification Number: NNH10ZDA009J (Explorer Missions of Opportunity Solicitation)
Identification Number: NNH10ZDA001N (Explorer U.S. Participating Investigators)
On November 1, 2010, the National Aeronautics and Space Administration (NASA) Science Mission Directorate (SMD) is releasing three solicitations for Explorer Science Investigations.
NASA will release simultaneously the Explorer 2011 Announcement of Opportunity (NNH10ZDA008J), the Explorer 2011 Science Missions of Opportunity (MO) Program Element Appendix (PEA) (NNH10ZDA009J) through the NASA Stand Alone Missions of Opportunity Notice (SALMON) Announcement of Opportunity (NNH08ZDA009O), and a solicitation for Explorer U.S. Participating Investigators (Explorer USPI) through the Research Opportunities in Space and Earth Sciences (ROSES) NASA Research Announcement (NNH10ZDA001N).
These solicitations will be open from November 1, 2010, through February 16, 2011. Upon the release date, the full text of the solicitations and all appendices will be available electronically at http://nspires.nasaprs.com/.
A preproposal conference will be held in late November, in the Washington, DC, area; see http://explorers.larc.nasa.gov/EX for details.
The Explorer Program conducts Principal Investigator (PI)-led space science investigations relevant to SMD's astrophysics and heliophysics programs. Explorer investigations must address NASA’s goals to advance the understanding of the Sun and its effects on Earth and the Solar System and/or to discover the origin, structure, evolution, and destiny of the Universe and search for Earth-like planets.
The currently approved Explorer Program planning budget is sufficient to select and execute at least one full Explorer mission to proceed into Phase B and subsequent mission phases. Assuming sufficient Explorer Program budget authority, NASA intends to select and execute a second full Explorer mission or one or more Mission(s) of Opportunity. NASA is fully prepared to select only one full mission (either astrophysics or heliophysics) if it receives mission of opportunity proposals that offer outstanding science opportunities. The decision between these selection options will be based upon the proposals received in response to this AO, to the Explorer MO program element appendix of the SALMON AO (NNH08ZDA009O), and to the Explorer Program U.S. Participating Investigators program element appendix of the ROSES NRA (NNH10ZDA001N); the decision will incorporate the most recent budget planning information available at that time.
Participation is open to all categories of organizations or institutions, U.S. or non-U.S., including educational, industrial, and not-for-profit institutions, Federally Funded Research and Development Centers (FFRDCs), University Affiliated Research Centers (UARCs), NASA Centers, the Jet Propulsion Laboratory (JPL), and other Government agencies.
Proposers should be aware of the following major changes in the Explorer AO from the Draft Explorer 2010 AO (NNH10ZDA008J) that was released on June 22, 2010.
- The AO has been renamed the Explorer 2011 AO.
- Proposals should address the science objectives in the recently released 2010 Science Plan for NASA’s Science Mission Directorate.
- The policy for the use of Earned Value Management Systems has been revised to reflect changes between NPR 7120.5D and NM 7120-81.
- The Launch Services Information Summary document in the Program Library updated to reflect the NASA Launch Services II (NLS-II) contract.
Proposers should be aware of the following major changes in the Explorer Missions of Opportunity PEA from the Draft Explorer Missions of Opportunity PEA (NNH10ZDA009J) that was released on June 22, 2010.
- This PEA has been renamed Explorer 2011 Science Missions of Opportunity.
- Changes in NASA’s management of programs and projects since the SALMON AO was released are described in a new section.
- Partner MOs may not be proposed for specific potential strategic partnership missions.
- Partner MOs may be proposed for nonstrategic NASA missions.
- Requirements for Letters of Acknowledgement from the Space Station Payloads Office and Letters of Feasibility have been added for investigations requiring flight on the ISS.
- Exceptions to general SALMON requirements have been specified.
- The evaluation criteria have been spelled out.
Comments may be addressed in writing or by e-mail to the Explorer Program Acquisition Scientist: Dr. Barbara L. Giles, Ref.: Explorer EX AO, Heliophysics Division, Mail Suite 3R15, Science Mission Directorate, National Aeronautics and Space Administration, Washington, DC 20546-0001, E-mail: HQ-Explorers@mail.nasa.gov (subject line to read "Explorer EX AO"). Responses to all inquiries will be answered by e-mail and also posted to the Frequently Asked Questions (FAQ) location of the Explorer Program Acquisition website at http://explorers.larc.nasa.gov/EX/; anonymity of persons/institutions who submit questions will be preserved.
Release Date: June 22, 2010
Comments Due: July 16, 2010
Identification Number: NNH10ZDA008J (Draft Explorer AO)
Identification Number: NNH10ZDA009J (Draft Explorer Missions of Opportunity solicitation)
On June 22, 2010, the National Aeronautics and Space Administration (NASA) Science Mission Directorate (SMD) is releasing two draft solicitations for community review and comment: the Draft Explorer 2010 Announcement of Opportunity (AO) and the Draft Explorer 2010 Missions of Opportunity (MO) Program Element Appendix (PEA) for the Stand Alone Missions of Opportunity Notice (SALMON) AO. Upon the release date, the full text of the both draft solicitations will be available at http://nspires.nasaprs.com/.
The Explorer Program conducts Principal Investigator (PI)-led space science investigations relevant to SMD's astrophysics and heliophysics programs. Explorer investigations must address NASA’s goals to advance the understanding of the Sun and its effects on Earth and the Solar System and/or to discover the origin, structure, evolution, and destiny of the Universe and search for Earth-like planets.
Participation is open to all categories of organizations or institutions, U.S. or non-U.S., including educational, industrial, and not-for-profit institutions, Federally Funded Research and Development Centers (FFRDCs), University Affiliated Research Centers (UARCs), NASA Centers, the Jet Propulsion Laboratory (JPL), and other Government agencies.
NASA will hold an Explorer Program Workshop (including a Potential Bidders Conference) on Tuesday, July 13, 2010 in the Washington, DC area to provide an overview of the Draft Explorer 2010 AO and the Draft Explorer 2010 MO PEA and to address any questions. Information about the Conference will be made available on the Explorer Program Acquisition website at http://explorers.larc.nasa.gov/EX/.
The comment period for the Draft Explorer 2010 AO and the Draft Explorer 2010 MO PEA ends on July 16, 2010.
The issuance of the Draft Explorer 2010 AO does not obligate NASA to issue the Explorer 2010 AO and solicit proposals. The issuance of the Draft Explorer 2010 MO PEA does not obligate NASA to issue an Explorer 2010 MO PEA and solicit proposals. Any costs incurred by prospective investigators in preparing submissions in response to any of these draft solicitations are incurred completely at the submitter's own risk.
Comments may be addressed in writing or by e-mail to the Explorer Program Acquisition Scientist: Dr. Barbara L. Giles, Ref.: Explorer EX AO, Heliophysics Division, Mail Suite 3R15, Science Mission Directorate, National Aeronautics and Space Administration, Washington, DC 20546-0001, E-mail: HQ-Explorers@mail.nasa.gov (subject line to read "Explorer EX AO"). Responses to all inquiries will be answered by e-mail and also posted weekly at the Frequently Asked Questions (FAQ) location of the Explorer Program Acquisition website at http://explorers.larc.nasa.gov/EX/; anonymity of persons/institutions who submit questions will be preserved.
SUBJECT: Community Announcement on Explorer AO
NNH10ZDA004JCommunity Announcement on Explorer AO
December 10, 2009
The National Aeronautics and Space Administration (NASA) Science Mission Directorate (SMD) is releasing this Community Announcement concerning its intention to solicit investigations for the Explorer Program. The Explorer Program conducts Principal Investigator (PI)-led space science investigations in SMD's astrophysics and heliophysics programs. Explorer investigations are intended to obtain an understanding of the Sun and its effects on Earth and the Solar System and/or to discover the origin, structure, evolution, and destiny of the Universe and search for Earth-like planets. Additional information concerning these areas of investigation is provided through appropriate links found on the SMD homepage at http://nasascience.nasa.gov/.
The current state of planning calls for NASA SMD to release an Announcement of Opportunity (AO) in the late summer/early fall of 2010 that will solicit proposals for Explorer (EX) missions to accomplish Explorer Program science objectives. NASA also plans to release simultaneously a solicitation for Explorer Missions of Opportunity (MO) through the NASA Announcement of Opportunity NNH08ZDA009O, Stand Alone Missions of Opportunity Notice (SALMON). A draft EX AO and draft SALMON amendment is expected to be ready for release for comment in Spring 2010.
The PI-managed mission cost cap for an EX mission is expected to be no greater than $200M in Fiscal Year (FY) 2011 dollars, not including the cost of the Expendable Launch Vehicle (ELV) or any contributions. Standard launch services on an ELV will be provided for EX missions at no charge against the mission cost cap. Only the launch services described in the Explorer Program Library’s launch services document will be provided (see http://explorers.larc.nasa.gov/EX). There will be a charge against the mission cost cap for mission unique and special launch services beyond the standard launch services offered.
The PI-managed mission cost cap for an Explorer MO is expected to be no greater than $55M in Fiscal Year (FY) 2011 dollars. NASA expects to solicit MO science investigations that are defined in the SALMON AO as either Partner MOs or Small Complete Mission MOs, including investigations requiring flight on long duration balloons and the International Space Station.
The currently approved Explorer Program planning budget is sufficient to select and execute at least one EX mission. It is also sufficient to select and execute a second EX mission or at least one MO. The decision between these two options will be based upon the proposals received in response to the EX AO and the SALMON amendment; the decision will incorporate the most recent planning budget information available at that time.
The current planning is for the selection process to be done in two stages. In step 1, it is anticipated that up to four EX missions may be selected for one-year Phase A concept studies. Each concept study would be funded up to $1M in real year dollars. For step 2, NASA will conduct a detailed review of the Phase A concept study reports. As a result of this second evaluation, NASA expects to select one or two EX missions to proceed into Phase B and subsequent mission phases. NASA desires to launch the first of the two EX missions by mid 2016; the launch-by date for any additional mission, if selected, is late 2018.
Additionally, investigations proposing to achieve Explorer Program science objectives through participation in Missions of Opportunity may be selected for Phase A study and review if their perceived value to the Explorer Program is high and the proposed cost is within the funding limit for this Mission of Opportunity. NASA may select no Mission of Opportunity proposals if these objectives are not met by any proposals.
Proposals in response to this AO will be due 90 days after its formal release. Participation will be open to all categories of U.S. and non-U.S. organizations, including educational institutions, industry, not-for-profit organizations, Federally Funded Research and Development Centers, NASA Centers and other Government agencies.
The schedule for the solicitation is intended to be:Release of draft AO: (target) Spring 2010 (target);
Explorer workshop: ~2 weeks after draft AO release;
Release of final AO: (target) Late summer/early fall 2010 (target);
Pre-proposal conference: ~3 weeks after final AO release;
Proposals due: 90 days after AO release;
Selection for competitive Phase A studies: Summer 2011 (target);
Concept study reports due: Summer 2012 (target);
Down-selection: Late 2012 (target);
The Explorer Program EX AO and SALMON amendment may contain provisions that differ substantially from this preliminary notice, in which case the provisions in the AO and SALMON amendment will take precedence. The Explorer AO will be based on the Standard PI-led Mission AO Template available at http://sso.larc.nasa.gov/aosimplification.html. Proposers should read the Draft EX AO carefully when it is released.
NASA has not approved the issuance of the EX AO or SALMON amendment and this notification does not obligate NASA to issue the announcements and solicit proposals. Any costs incurred by prospective investigators in preparing submissions in response to this announcement are incurred completely at the submitter's own risk.
Further information will be posted on the Explorer Program Acquisition website at http://explorers.larc.nasa.gov/EX as that information becomes available. Questions or comments about this intention to release an EX AO may be addressed in writing or by e-mail to the Explorer Program Acquisition Scientist: Dr. Barbara L. Giles, Ref.: Explorer EX AO, Heliophysics Division, Mail Suite 3R15, Science Mission Directorate, National Aeronautics and Space Administration, Washington, DC 20546-0001, E-mail: barbara.giles@nasa.gov (subject line to read "Explorer EX AO"). Responses to all inquiries will be answered by e-mail and also posted weekly at the Frequently Asked Questions (FAQ) location of the Explorer Program Acquisition website; anonymity of persons/institutions who submit questions will be preserved.
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- Last Modified: 04.23.2013