NASA/Goddard Space Flight Center, Code 219, Greenbelt, MD 20771

A -- RAMAN AIRBORNE SPECTROSCOPIC LIDAR (RASL) INSTRUMENT SOL RFO5-62140-252 POC Mary Petkoff, Contracting Officer, Phone (301)614-5587, Fax (301)614-5619, Email Mary.J.Petkoff.1@gsfc.nasa.gov-- William A. Hatchl, Contracting Officer, Phone (301)614-5590, Fax (301)614-5619, Email William.A.Hatchl.1@gsfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=D&pin=51#RFO5-62140-252. E-MAIL: Mary Petkoff, Mary.J.Petkoff.1@gsfc.nasa.gov. NASA Goddard Space Flight Center intends to issue Request For Offer (RFO)5-62140-252, on or about September 14, 2000, for a 24 inch Cassegranian telescope for the Raman Airborne Spectroscopic Lidar (RASL) instrument. The acquisition will be conducted using NASA MidRange procedures found in NASA FAR Supplement Part 1871. The solicitation due date will be on or about October 30, 2000. This procurement is a total small business set-aside. See Note 1. The Standard Industrial Classification Code (SIC) Code is 3827 with a size standard of 500 employees. The Government does not intend to acquire a commercial item using FAR Part 12. See Note 26. The DPAS rating is DO-A7. A firm-fixed-price contract is contemplated. The RASL instrument will be mounted on NASA research aircraft to measure the water vapor mixing ratio, aerosol and cloud backscatter coefficients, the aerosol extinction coefficient, and the cloud liquid water content. The all-reflective telescope is based on a Dall-Kirkham design (elliptical primary and spherical secondary). The system level specifications are as follows aperture diameter: 24 inches; effective focal length: 126.96 inches; telescope system f/#: f/5.3; back focal distance: 8.29 inches past primary mirror vertex; flange focal distance: 0.787 inches past aft-optics mounting plate; image quality(on-axis): blur circle<25urad diameter @ 90 percent encircled energy; and field of view: adjustable, 0.20mrad to 2.00mrad. The telescope shall be capable of operating in any orientation relative to gravity. The telescope shall be able to be stored over a temperature range of -10C to 60C and over a 0 percent to 100 percent humidity range for extended periods of time without suffering any detrimental performance effects. The telescope design constraints are as follows length: <39 inches from the back surface of the primary mirror cell (aft-optics mounting plane to the back of the secondary mirror mount (laser output mirror mounting plane); width: <32 inches; <200 pounds (including optics); <3.5 inches from telescope mounting plane (along optical axis); and vibration: telescope fundamental frequency, 1st mode >60Hz. The solicitation and any documents related to this procurement will be available over the Internet. These documents will be in the Microsoft Office Suite (Word 6.0, Excel 5.0, ofr Powerpoint 4.0) format and will reside on a World-Wide Web (WWW) server, which can be accessed using a WWW browser application. The Internet site, or URL for the NASA/GSFC Business Oppportunities page is http://procurement.nasa.gov/eps/gsfc/class.html Any referenced notes in this synopsis can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html All qualified, responsible sources may submit a proposal which shall be considered by the agency. It is the offeror' responsibility to monitor the previously mentioned web site for release of the RFO and amendments, if any. An Ombusman has been appointed for this procurement, see NASA Specific Note "B". Posted 08/28/00 (D-SN491021). (0241)

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