Global TMW:
Login  |  Register          Free Newsletter Subscription
Subscribe
Email
Print
Reprint
Learn RSS

Throwaway instruments

Brad Thompson, Contributing Technical Editor -- Test & Measurement World, 4/1/2004

It's time for an instrument inventory. Used test equipment with finger-soiled knobs and switches gets tossed. That spectrum analyzer's CRT will surely go dim someday, so junk the analyzer and the spare CRT stored in the stockroom. You're replacing all your instruments, so toss their spare parts too.

While you're at it, order a unique and gold-plated metal trash bin to collect the rejects. You'll use it once and then toss it, too. Besides, money is no object. You can use cash from other projects.

Sounds crazy, huh? Not to NASA's chief administrator Sean O'Keefe, who in the latest of a series of questionable policy decisions decreed that the star-crossed Hubble Space Telescope will not undergo two final maintenance missions and thus will deteriorate and fail several years before its planned retirement in 2010.

O'Keefe cited risks and expenses attendant to future Space Shuttle service missions to Hubble. The Hubble decree followed by two days President George W. Bush's proposal for human travel to the Moon and Mars.

To minimize the danger of tons of glass and titanium impacting populated areas when Hubble reenters Earth's atmosphere, O'Keefe advocated using funds from the astronomy budget for a special-purpose "deorbiting" rocket to nudge Hubble into an ocean impact. No longer needed for Hubble's refurbishment, on-the-shelf repair parts and new instruments worth approximately $200 million will get scrapped.

O'Keefe's announcement provoked howls of protest from astronomers, who point out that loss of the Hubble will eliminate space-based visible-light observations until the proposed James Webb Space Telescope reaches orbit, perhaps in 2011. As for risk, some observers believe that servicing Hubble via the Space Shuttle actually poses a lower flight risk than the longer engine burn required to visit the International Space Station.

Two Shuttle disasters have shown how inept management, office politics, and misguided policies can escalate technical risks into catastrophic failures. And speaking of bad policy decisions, where's NASA's replacement for the aging Space Shuttle?

As instruments go, Hubble is well worth keeping—it's NASA's management that needs repair.

brad@tmworld.com

 

What They're Saying

The report of the Hubble Space Telescope—James Webb Space Telescope transition committee proposes three scenarios for Hubble and its follow-on program: www.nasa.gov/pdf/49151main_hst-jwst.pdf.

An article exploring NASA's reasons for discontinuing future service missions to Hubble is available at skyandtelescope.com/news/article_1156_1.asp.

For a discussion of whether servicing Hubble is worthwhile, read www.thespacereview.com/article/95/2.

To read one attendee's minutes of Sean O'Keefe's presentation to the Hubble mission team, go to www.stsci.edu/resources/sm4meeting.html.

To learn what you can do to help save the Hubble Space Telescope, refer to skyandtelescope.com/news/article_1160_1.asp.

What They're Doing

View spectacular images gathered by the Hubble Space Telescope at hubblesite.org/gallery/.

An extensive technical archive containing images and data from 14 space observation missions, approximately 100,000 observations of more than 20,000 targets gathered by Hubble, and several additional image catalogs is available in the Multimission Archive at the Space Telescope site at archive.stsci.edu.

Additional Reading

To learn what's involved in safely bringing the Hubble Space Telescope back to Earth, see www.space.com/news/hubble_trmm_040209.html.

For an insider's view of Hubble's development and early problems, I recommend the following book: The Hubble Wars: Astrophysics Meets Astropolitics in the Two-Billion-Dollar Struggle over the Hubble Space Telescope, Eric J. Chaisson, paperback edition, Harvard University Press, Cambridge, MA, 1998.

For a review of the book, go to www.setileague.org/reviews/hubble.htm.

Email
Print
Reprint
Learn RSS

Related Content

Related Content

There are no other articles related to this article.

By This Author

Sponsored Links



 
Advertisement
SPONSORED LINKS

More Content

  • Blogs
  • Podcasts

Blogs


Sorry, no blogs are active for this topic.

» VIEW ALL BLOGS

Podcasts

Advertisements





NEWSLETTERS
Click on a title below to learn more.

Test Industry News (3 Times Per Month)
Machine-Vision & Inspection (Monthly)
Communications Test (Monthly)
Design, Test & Yield (Monthly)
Automotive, Aerospace & Defense (Monthly)
Instrumentation (Monthly)
Resource Center E-Alert (Monthly)
©2008 Reed Business Information, a division of Reed Elsevier Inc. All rights reserved.
Use of this Web site is subject to its Terms of Use | Privacy Policy
Please visit these other Reed Business sites