University of Michigan, Space Physics Research Laboratory, 2455 Hayward, Ann Arbor, Michigan 48109-2143, (Attention: Mr. Rick Baker)

18 -- SPACEFLIGHT FABRY-PEROT INTERFEROMETER SYSTEM DUE 060196. POC University of Michigan, Space Physics Research Laboratory, 2455 Hayward, Ann Arbor, Michigan 48109-2143, Attention: Mr. Rick Baker. Spaceflight Fabry-Perot Interferometer System. The Space Physics Research Laboratory, Department of Atmospheric, Oceanic and Space Sciences at the University of Michigan is developing an instrument for the NASA sponsored TIMED spacecraft. The instrument, a Fabry-Perot interferometer shall measure winds and temperature in the upper atmosphere (60 to 180 KM) from a platform in a 600 km orbit. The system shall consist of four off-axis gimbaled (1 axis) Gregorian telescopes in a limb scan configuration. The gathered light will be condensed and transferred to the detector system via fiber optic bundle. The detector, a dual etalon Fabry-Perot interferometer will be imaged using a focal plane CCD. The laboratory will procure complete subsystems and major components from qualified companies. It is desired to acquire either existing applicable hardware or hardware built from established, proven designs. The subsystems and components sought are: A) Limb Scan Telescope - The design will be an off-axis Catadioptric Gregorian with an entrance pupil of approximately 7.5 cm, a field-of-view of 2.5 X 2.5 degrees, a focal length of 13 cm, an image plane of 5.7 X 5.7 mm, and a spectral band covering 550 to 900 nm. The design will be evaluated on cost, off-axis rejection, optical transmission, thermal rejection, alignment robustness, mass, and mechanical integrity. A subcontract is contemplated that will include, in addition to providing the requisite hardware; an analysis of the subsystem performance. B) CCD Devices - A subcontract shall be awarded for providing qualified CCD devices. The CCD selected shall have a heritage of spaceflight operation. The CCD geometry is somewhat flexible. It needs to have a minimum of 500X500 pixels and will be used in a low light, frame transfer configuration. The spectral region of interest is from 550 to 900 nm. Both front and back illuminated devices will be considered. The device selected will be evaluated on cost, sensitivity, noise, operating speed, uniformity, spectral response, and radiation tolerance. C) Flight Processor - An embedded controller based on the IDT 3081 with on-board 1553 support is desired for the mission. A contract will be considered to procure a flight processor only if it is a mature design with heritage. The design will be evaluated on cost, ability to support image processing, and radiation tolerance. A contract to provide an unqualified engineering model, a flight unit, and support for the units on a time and materials basis is anticipated. D) General Hardware - There is also a need for fabrication and/or acquisition of various hardware. Anyone wishing to provide components, material, or fabrication support in the following areas: should provide information in response to this request. There is a need for the following qualified hardware: Motors, actuators, encoders and piezoelectric position control; Fiber-Optics, Etalons, Interference filters, general optics, and internal calibration sources (simulate atmospheric emissions). The project is a NASA sponsored spaceflight program with an appropriate performance assurance plan. Electrical, Electronic, Electrical-mechanical, and Electrical-Optical parts shall be purchased to Hi-Rel Military Specifications, Hi-Rel manufacturer's Specifications, or special Purchase Order instructions. NASA Grade Levels 1, 2 and equivalent Grade 2 parts are approved. Other EEE parts shall require qualification screening. All as-built configurations for flight hardware will be documented and verified during fabrication. All materials shall be approved for use. Detailed performance assurance specifications will be released with the individual RFPs. Statements of interest, which include a presentation of company qualifications, are required. Proprietary information so identified will be protected as such. Respondents may express interest in any or all of the items sought. Efficiencies and/or economies that might be achieved through procurement of combinations of these items as a package would be of interest to the laboratory. Interested firms are invited to submit details in writing for evaluation to demonstrate their experience and qualification to provide the desired hardware. This is not a solicitation for proposals. Respondents will not be notified of the results of the evaluation of the information submitted but those sources deemed fully qualified will be considered when the RFP is issued. The laboratory does not intend to implement a purchase or award a contract on the basis of this request for information or otherwise pay for information solicited. Closing date is 14 calendar days from the date of this publication. Information must be mailed to University of Michigan, Space Physics Research Laboratory, 2455 Hayward, Ann Arbor, Michigan 48109-2143 (Attention: Mr. Rick Baker). Telephone inquiries and responses will not be accepted. (135)

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