NASA/Goddard Space Flight Center, NASA Headquarters Acquisition Branch, Code 210.H, Greenbelt, MD 20771

A -- ANNOUNCEMENT OF OPPORTUNITY FOR DISCOVERY PROGRAM SOL AO-98-OSS-04 DUE 062998 POC Jay T. Bergstralh, Disc. Scientist, Planet Data Sys, Phone (202) 358-0313, Fax (202) 358-3097, Email jbergstr@mail.hq.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/HQ/date.html#AO-98-OSS-04. E-MAIL: Jay T. Bergstralh, jbergstr@mail.hq.nasa.gov. The National Aeronautics and Space Administration (NASA), Office of Space Science is releasing a NASA Announcement of Opportunity (AO 98-OSS-04) for investigations suitable for the next flight mission(s) in its Discovery Mission series with a mission launch date of no later than September 30, 2004. This AO also now allows U.S. science participation in non-NASA space missions identified in this Announcement as Missions of Opportunity. The Discovery Program consists of focused planetary system(s) exploration investigations of limited costs and duration utilizing medium class or smaller launch vehicles. Discovery mission investigations proposed to this AO must be complete investigations from initiation of preliminary analysis/technical definition (Phase A/B) through design/development (Phase C/D), including launch plus 30 days and mission operations and data analysis (Phase E). The Discovery Program will carry out these investigations using flight missions with design/development (Phase C/D) costs of $190million or less and total mission costs of $299 million or less (FY 1999 dollars). Mission of Opportunity proposals are limited to no more than $22 million (FY 1999 dollars). Participation is open to all categories of organizations, foreign and domestic including educational institutions, profit and nonprofit organizations, NASA centers, and other Government agencies. Proposals to this AO must be received by June 29, 1998, to be considered. Submittal details contained in the AO will be available electronically through the selection Research Opportunities on the OSS homepage at: <http://www.hq.nasa.gov/office/oss/research.htm&;gt;. Inquiries of a technical nature should be directed to Dr. George Albright (E-mail <ossao@hq.nasa.gov>, Note: the E-mail subject field must include the character string "DISCAO"), and inquiries of a scientific nature should be directed to Dr. Jay Bergstralh (E-mail <bergstralh@hq.nasa.gov>). This notice constitutes a NASA Announcement of Opportunity as specified in FAR6.102(d)(2). NOTICE: As of the end of March 1998, NASA OSS will discontinue using postcards to notify release of its research program announcements. All future notifications will be by electronic mail. Subscribe by sending an E-mail to <majordomo@hq.nasa.gov>; leave the Subject line blank but enter "subscribe oss-research" in the message body. It will be automatically acknowledged. (0075)

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