Senior managers ruled out asking for spy satellite imagery that might, or might not, have allowed a more thorough analysis. Three frames from a NASA tracking camera show foam separating from the shuttle Columbia's external tank (left), tumbling toward the left wing just under the orbiter's nose (center) and then emerging from under the wing as a cloud of debris.Įngineers could not determine exactly where the foam had hit, and Columbia was not equipped with a robot arm to enable an inspection in space.īut an engineering analysis based on software modeling for much smaller impacts indicated the foam strike did not pose a "safety of flight" issue. Later analysis would show the foam impacted the underside of the left wing at a relative velocity of more than 500 mph, instantly disintegrating. Tracking cameras showed the foam disappearing under the shuttle's left wing and emerging an instant later as a cloud of fine particles. We’re always updating our systems and testing new ways to refine and improve your results to make them as relevant as possible to meet your needs.But 16 days earlier, 81.7 seconds after liftoff, a briefcase-size chunk of lightweight foam insulation had broken away from Columbia's external tank as the spacecraft accelerated through 1,500 mph. The importance of any one factor over any other in a sort order varies, and the balance is constantly being reviewed and adjusted. If you see an Experience Award Winner label, the award is based on average review ratings, share of bookings with a review, and number of bookings through Viator over a 12-month period. You’ll see some experiences with a “Promoted” badge, which means that the operators of those experiences have agreed to pay Viator more to have their experience highlighted. You’ll see explanations of what those sort options mean when you select them. On some pages, you can select how to sort the results we display and also use filter options to see only those search results that meet your chosen preferences. That’s why we offer many ways to help you find the right experiences for you. Viator wants to make your searches as relevant as possible. It is not necessary to have booked an experience through Viator (or Tripadvisor) to submit a review of an experience to the Tripadvisor site. Tripadvisor reviews that appear on the Viator site are subject to the same checks and moderation processes as set out above. After publication, our team checks each review reported to it as not meeting our publication criteria. ![]() All you need to do is click on the link provided in the email. ![]() In some cases, we will also send you an email asking you to validate your review before it is published. When the system detects a problem with a review, it may be automatically rejected, sent to the reviewer for validation, or manually reviewed by our team of content specialists who work 24/7 to maintain the quality of the reviews on our site. If the system detects something that contradicts our publication criteria, the review is not published. Before publication, each review goes through an automated tracking system, which collects information for each of the following criteria: who, what, how, and when. ![]() You can only submit a review or rating of an experience to Viator if you were the person who made the booking through Viator.
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