Hst

Download or read book GST/HST and Real Property in Canada written by Joanne Heffernan and published by CCH Canadian Limited. This book was released on 2008 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Impact of HST on European Astronomy written by F. Duccio Macchetto and published by Springer Science & Business Media. This book was released on 2010-01-14 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remembrance of Things Past It scarcely seems credible that it was almost exactly thirty years ago that I ?rst met Duccio Macchetto at the ?rst meeting of the newly formed Science Working Group of what was then called the Space Telescope project. We were there in slightly d- ferent roles, Duccio as the project scientist for the Faint Object Camera and I as an interdisciplinary scientist. Henk van de Hulst was also there as the of?cial rep- sentative of ESO. The approval of the project was the end result of a great deal of lobbying and politicking both in the USA and Europe, the European contribution proving essential to the approval process in the USA. Those interested in the nit- gritty of the process should read Robert Smith’s outstanding history of the Hubble Space Telescope. We should have realized early on that we were in for a rough time. At that ?rst meeting of the Science Working Group I remember vividly NASA Headquarters telling us that the Space Telescope was a success-oriented programme that would cost M$ 680. Well, we could live with the cost-tag, but we should have had concerns about the expression “success-oriented”. This meant that everything should turn out exactly as planned, the project would be carried out within the projected time-scale and budget and the telescope would be launched in 1983. Well, the rest is history. We learned a lot of useful jargon along the way.

Download or read book The 2005 HST Calibration Workshop written by Anton Koekemoer and published by . This book was released on 2006 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Restoration of HST Images and Spectra written by and published by . This book was released on 1991 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Strategy for Recovery: Report of the HST Strategy Panel written by and published by . This book was released on 1991 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The HST Strategy Panel held four meetings between mid-August and mid-October 1990. At these meetings, a wide variety of options for correcting spherical aberration were identified and debated. This report presents the Panel's findings and recommendations. Problems included: (1) the optical problem and solution; (2) COSTAR; (3) pointing; (4) WFPC; (5) servicing mission; (6) recommended strategy; and (7) fresh reasons to commit to the HST.

Download or read book Assessment of Options for Extending the Life of the Hubble Space Telescope written by National Research Council and published by National Academies Press. This book was released on 2005-03-28 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Hubble Space Telescope (HST) has operated continuously since 1990. During that time, four space shuttle-based service missions were launched, three of which added major observational capabilities. A fifth â€" SM-4 â€" was intended to replace key telescope systems and install two new instruments. The loss of the space shuttle Columbia, however, resulted in a decision by NASA not to pursue the SM-4 mission leading to a likely end of Hubble's useful life in 2007-2008. This situation resulted in an unprecedented outcry from scientists and the public. As a result, NASA began to explore and develop a robotic servicing mission; and Congress directed NASA to request a study from the National Research Council (NRC) of the robotic and shuttle servicing options for extending the life of Hubble. This report presents an assessment of those two options. It provides an examination of the contributions made by Hubble and those likely as the result of a servicing mission, and a comparative analysis of the potential risk of the two options for servicing Hubble. The study concludes that the Shuttle option would be the most effective one for prolonging Hubble's productive life.

Download or read book The Economist written by and published by . This book was released on 1910 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: