The National Aeronautics and Space Administration (NASA) Earth Science Enterprise announces the release of a "Call Letter" for the 2002 Suborbital Science Flight Program in support of the Office of Earth Science (OES). The purpose of the announcement is to solicit flight requests for remote or in-situ sensing by Principal Investigators requiring an aircraft platform. The sensors may be furnished as NASA "core" sensors or supplied by the Principal Investigator. Participation is open to all categories of organizations: NASA centers, other Government agencies, educational institutions, and nonprofit organizations. Flight requests may be submitted from April 2 - June 1, 2001 for initial flight season planning.

The call letter with complete instructions will be available electronically on April 2, 2000 via the Internet at the NASA Airborne Science Program Home Page: http://www.dfrc.nasa.gov/airsci. General information about the ESE Suborbital Science Program is available at http://www.earth.nasa.gov/science/suborbital.

Paper copies of the Flight Request will be available to those who do not have access to the Internet by faxing a message to (661) 258-3719 requesting a flight request form. Please provide your full name and address, including zip code, and your telephone and fax number, including area code.

Questions regarding this announcement can be addressed to NASA Headquarters, Code YS, Washington, DC 20546, Attn.: Cheryl Yuhas, telephone number (202) 358-0758 (-2770 FAX), E-mail: cyuhas@hq.nasa.gov or to NASA Dryden Flight Research Center, M/S 1623H, P.O. Box 273, Edwards, CA 93523-0273, Attn.: Randy Albertson, telephone number (661) 258-7540 (-3719 FAX), E-mail: randy.albertson@dfrc.nasa.gov.