The AA for S&MA stated that he would defer to Shuttle management in handling such a request. The JSC manager for Shuttle Safety program said he was told this was an “in-family” event – meaning it was normal and nothing to worry about. Seven days into the mission, a NASA Headquarters Safety and Mission Assurance (S&MA) manager called a JSC S&MA manager for the Shuttle Safety Program and the Associate Administrator (AA) for S&MA, to discuss a potential DoD imaging request. The imaging request was viewed by Shuttle Program Managers as a non-critical engineering desire rather than a critical operational need. The DAT assigned the NASA Co-Chair to pursue a request for imagery of the vehicle on-orbit – constituting the third request for imagery – by going through the Engineering department rather than through Shuttle Program Managers. The assumptions and uncertainty incorporated in this analysis were never fully presented to the Mission Management Team (MMT). Because foam is less dense than ice, the DAT used a qualitative extrapolation of the test data and engineering judgment that a foam impact angle of up to 21° would not penetrate the RCC. Crater was classified as a “conservative” tool based on its projections of ice projectile damage to RCC turning out to be more severe than that achieved experimentally. Crater was suitable for small debris impacts, on the order of 49cm3 – versus 19,665cm3, the estimated size of the bipod ramp foam. Without additional on-orbit pictures, the DAT was restricted to using a mathematical modeling tool called Crater, that predicts the depth to which debris will penetrate a Thermal Protection System (TPS) tile. The first formal DAT meeting was held on January 21st, five days into the mission.Ī trajectory analysis that used a computational fluid dynamics approach to determine the likely position and velocity histories of the foam (Credits: NASA Ref p61). The Department of Defense (DoD) Manned Space Flight Support Office began implementing the request, albeit with the assurance from MCC that this was merely information gathering, not a formal request for action. DAT contractor engineers prompted a NASA Shuttle manager to make a second imagery request. The Program Manager agreed to explore the possibility – this was the first imagery request of the mission.Ī Debris Assessment Team (DAT) was formed with NASA and contractor engineers. On the second day of the mission, the Intercenter Photo Working Group Chair contacted the Shuttle Program Manager for Launch Integration at KSC to request imagery of Columbia’s left wing on-orbit. – In the video below, the apparently trouble-free launch of Columbia STS-107. Columbia continued its 16 day mission without further incident – until Entry Interface. MCC also emailed a short video clip of the foam strike. MCC stated there was “ absolutely no concern for entry” because the phenomenon had been seen before. On flight day eight, MCC emailed the crew that post-launch photo analysis showed External Tank foam had struck the orbiter’s left wing during ascent. Neither the crew nor MCC were aware that on flight day two an Air Force Command review of radar tracking data detected an object drifting away from the orbiter, that subsequent analysis suggested may have been related to the foam strike. The analysis revealed that the debris was approximately 53-68cm long and 30-45cm wide, tumbling and moving at a relative velocity of 670-922km/h at the time of impact. The impact was detected the next day during the detailed review of all launch camera photography that is conducted after every Shuttle launch. This incident was not seen by anyone on the ground or in the Kennedy Space Center (KSC) Firing Room or Johnson Space Center (JSC) Mission Control Center (MCC) there was no onboard indication to the crew. The foam impacted under the leading edge of the left wing at 81.9 seconds. At 81.7 seconds after launch, when the Shuttle was at about 20,000m and traveling at Mach 2.46 (2,655km/h), a large piece of insulating foam came off the External Tank (ET) left bipod ramp area, close to where the orbiter attaches to the ET. The Space Shuttle Columbia STS-107 was launched on Januat 10:39 a.m. This article presents a technical overview of the accident, its cause, and the post-flight consequences. The Space Shuttle Columbia disaster is one of the most tragic chapters of spaceflight history. A color enhanced, de-blurred still frame of the foam strike, derived from video recording (Credits: NASA).
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Deleting or Changing Permissions for Group Library Members Those who already have a Zotero account will simply be directed to a login screen and then will be given the options to join the group or decline the request. Those who have not already registered with Zotero will have to do so before they can accept the invitation. Those who have been invited to join your group will receive an email providing a link through which to accept or decline your invitation. You can now drag citations into this group to share these citations will sync with your cloud account and also appear in the Groups tab of anyone with whom you have shared the library. Once the sync is complete, you will see the new group on your local Zotero library under the “Group Libraries” listing: When finished, return to your Zotero library and lick the Sync button.When you are ready to send out these invitations, click the Invite Members button (C): In the space provided (B), type out the e‐mail addresses of the people who you wish to share your library with. To add members, click on the Send More Invitations link (A) near the bottom of the page. This will redirect you to the Members Settings page for your group library.After creating your group library, you will be redirected to the “Groups” page on To invite others to your group library, click the Manage Members link under the title of the group library in question:.Private means that “Only members can view your group online and must be invited to join.”.Public/Closed means that “anyone can view your group online, but members must apply or be invited”.Public/Open means that “anyone can view your group online and join the group instantly”.Next, choose what type of group you want to create (B).This will redirect you to the “Groups > New group” page on In the box provided, enter a name for your library (A).In Zotero, click on the New Library button and choose New Group:.To set up a group library, follow these steps: Zotero also allows users to share citations and PDFs with other users through its “Group Library” feature. To upgrade your storage, log into your Zotero account through your web browser and choose your desired tier at the following URL. These tiers are as follows: Storage Quota Luckily, Zotero offers several tiers of paid subscriptions that will expand your storage quota. However, if you would like to sync a large collections that contain copious attachments, you will find yourself quickly running out of space. If you are just syncing citational information, this quota is often more than enough. Zotero offers users 300 MB of free online data storage. To do this, click on the Sync button located on the Zotero toolbar: Now that you have connected your Zotero program to your online account, you can sync your library.Since the Zotero online account has limited storage space, it is recommended that you uncheck the Sync attachment files in My Library using… and Sync attachment files in group libraries using Zotero storage options (C).On this page, enter the email and password that you used to set up your Zotero account (B).From the Preferences window, click on the Sync tab (A).Then, in the toolbar, go to Edit → Preferences (PC) or Zotero → Preferences (Mac). After creating an account, you will then need to log in through Zotero itself. To sync your library, you first need to register for a free Zotero account at. This means that the sync function does not replace one version of your library with another: it simply synchronizes the content of your online and desktop libraries, ensuring that both display the same thing. So what exactly happens when you sync a library? Simply put, syncing will copy all of the citations in your desktop library up into the Cloud additionally, it will copy any cloud-based citations down into your desktop library. This allows you to access and edit your library whenever-and wherever-you need to! Are you interested in accessing your Zotero library on more than one computer? If so, look no further than Zotero’s powerful syncing function, which enables you to copy your library to Zotero’s online server and share it across multiple devices. Chicago - Illinois State Water Survey ) radar and a National Severe Storms. The map tool includes selection tools that allow users to choose individual or multiple sites and begin the ordering process for historical data in NCEI's Radar Data Archive. Doppler Radar Surface Stations PAM ( NCAR ) SAM ( NOAA ) Weather stations. The radar products are also available as OGC compliant services to use in your application. 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Accumulations are expected to be minor.The analysis conducted by NOAA's Radar Operations Center shows the availability of beam coverage at specified altitudes from the ground. While most of the snow had already melted by Friday afternoon, there could be another burst of snow Saturday night into Sunday. "In this case, we got a couple of cold days setting in," Lockefeer said, "and with freezing temperatures setting in, you have to check for freezing spots and those will have to be salted." Lockefeer said they still plan to put down a bit more salt to prevent roads from icing up over the next few days. Track the systems as they move across the. Theres potential for severe storms in the Chicago area late Monday afternoon and into the evening. "We've been fortunate this year, it's certainly been lighter," Lockefeer said. NBC 5 Meteorologist Paul Deanno has the timeline. Jim Lockefeer at Lake Forest Public Works said they usually store around 2,400 tons of salt for the season, but this year's mild winter means they have saved a substantial amount of that. The fact is, predicting ski area weather is like a day at the dog track. Similar conditions also made things difficult for drivers overnight and early Friday morning in Gurnee and Libertyville. Chicago gets buried in October, so much the better for Big Sky, Mont. People in Woodstock saw some of the most substantial snowfall, with just over 9 inches coming down. She was last seen wearing a blue Chicago Bears hoodie and black and red plaid pants. CLICK HERE for the latest ABC7 AccuWeather Forecast Yoder is 4-feet-10-inches tall and weighs 110 pounds. IPhone Data Recovery can also be used as iCloud backup data recovery. For the files stored under other nodes, you can easily preview any files and export them to your computer. 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