NASA Headquarters, Acquisition Division, Washington, DC 20546 Attn:SZ/Dr.L.Kaluzienski

99 -- X-RAY TIMING EXPLORER(XTE) GUEST OBSERVER PROGRAM SOL NRA 95-OSS-04 POC Dr.L.Kaluzienski tel: 202/358-0370 THIS IS A SOURCES SOUGHT SYNOPSIS. Basic Research Opportunities. The NASA X-Ray Timing Explorer (XTE) Guest Observer Program. The National Aeronautics Space Administration (NASA) is interested in receiving proposals for guest investigations which are relevant to the X-Ray Timing Explorer mission. Participation in this program is open to ALL categories of organizations, domestic and foreign. A detailed description of the opportunity and specific guidelines for proposal preparation are available from: Dr. Louis J. Kaluzienski, Astrophysics Division, Code SZ, National Aeronautics and Space Administration, Washington, DC 20546 U.S.A Telephone: (202)358-0370. Request Announcement NRA 95-OSS-04. This notice constitutes a NASA Research Announcement (NRA) as contemplated in Federal Acquisition Regulation (FAR) 6.102(d)(2). It will be open for the period through April 27, 1995. The NRA contains all information regarding the peer review and criteria employed in the evaluation and selection process. (0010)

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