Page:Marshall Space Flight Center 1990 Annual Chronology of Events.pdf/43

 September 11 A meeting with the National Space Development Agency of Japan (NASDA) was held at NASDA Headquarters in Tokyo on September 11-12. Participants discussed communication links between NASA and NASDA. Representatives from the MSFC Information Systems Office, NASA Headquarters, Boeing, and NASDA attended the meeting. (See MSFC History Office Microfiche #2127, "Notable MSFC Events During 1990," October 1, 1990)

September 11 Huntsville Mayor Steve Hettinger signed a proclamation declaring October as Quality Month for the City of Huntsville. Representatives from the Marshall Center and the American Society for Quality Control participated the signing session. (Marshall Star, September 19, 1990)

September 12 The fourth meeting of The Hubble Space Telescope Optical Systems Board of investigation was held on September 12-13 at the offices of Hughes Danbury Optical Systems. Inc., in Danbury. Connecticut. As in the previous meeting, particular attention was paid to the null correctors used in manufacturing and characterizing the primary mirror. (The Hubble Space Telescope Optical Systems Failure Report, Issued November 27, 1990)

September 13 Dr. Lew Allen, Chairman of the Hubble Space Telescope Optical Systems Board, issued a statement saying that most, if not all, of the on-orbit problem for the telescope could be traced to a spacing error in the reflective null corrector, an optical reference device used in the manufacture of the primary mirror. (Statement of Dr. Lew Allen, Chairman, Hubble Space Telescope Optical Systems Board of Investigation, September 13, 1990)

September 14 Fine grinding was completed and the first of 11 polishing cvcles began on the paraboloid mirror (PI) for the Advanced X-ray Astrophysics Facility. (MSFC Observatory Projects Office, Draft Chronology of Events for 1990)