{"id":41532,"date":"2007-12-07T20:56:44","date_gmt":"2007-12-07T12:56:44","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/mmt-decide-to-try-for-a-sunday-launch-attempt-for-sts-122\/"},"modified":"2007-12-07T20:56:44","modified_gmt":"2007-12-07T12:56:44","slug":"mmt-decide-to-try-for-a-sunday-launch-attempt-for-sts-122","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/mmt-decide-to-try-for-a-sunday-launch-attempt-for-sts-122\/","title":{"rendered":"MMT decide to try for a Sunday launch attempt for STS-122"},"content":{"rendered":"<p>The Mission Management Team (MMT) have concluded their meeting on flight rationale for proceeding with the launch of Shuttle Atlantis on STS-122, deciding to make a launch attempt on Sunday at 3:21pm Eastern, in a one minute launch window.\n<\/p>\n<p>  The main reason for waiting an extra day would be to finalize Flight Controller procedures for watching the tank closely during ascent, in the event of ECO (Engine Cut Off) sensors were deemed unreliable. The launch could be delayed longer if those procedures are not finalized.\n<\/p>\n<p><em><img fetchpriority=\"high\" decoding=\"async\" height=\"129\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=13910\" width=\"600\" align=\"left\" vspace=\"5\" border=\"0\/\"><\/em><\/p>\n<p><em>**The most comprehensive collection&nbsp;of&nbsp;Shuttle, Ares, Orion&nbsp;and ISS&nbsp;related presentations and mission documentation, plus expansive daily processing documentation and updates&nbsp;are&nbsp;<\/em><font color=\"#0000ff\"><em>available to download&nbsp;on L2<\/em><\/font><font color=\"#0000ff\"><em>&nbsp;**<\/em><\/font><\/p>\n<p><font color=\"#ff0000\"><em><img loading=\"lazy\" decoding=\"async\" height=\"139\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=31173\" width=\"212\" align=\"left\" vspace=\"5\" border=\"0\/\"><\/em><\/font><font color=\"#ff0000\"><em>L2: STS-122&nbsp;to STS-127&nbsp;documentation already available.<\/em><\/font><\/p>\n<p>STS-122 L2 Special NOW LIVE.&nbsp;<em><font color=\"#0033ff\">**Click&nbsp;here for sample of L2 menu and content**<\/font><\/em><\/p>\n<p><em><font color=\"#ff0000\" size=\"3\"><\/font><font size=\"2\">**STS-122 Special: 12 MOD Flight Readiness Review (FRR) Presentations, Baselines and Mission Overviews. 17 Shuttle FRR Presentations. Payload Presentations and vast amounts of live, uploaded images and presentations. Installation Movies (several)&nbsp;\u2013 already 1100&nbsp;megabytes strong**<br \/><\/font><\/em><br \/><font color=\"#0000ff\" size=\"3\"><em>**LIVE updates on Atlantis&nbsp;STS-122 COUNTDOWN**<\/em><\/font><\/p>\n<p>**Click here for FRR&nbsp;overview articles: Article 1 \u2013 Article 2**<\/p>\n<p><em><u>ECO Evaluations pre and post-MMT:<\/u><\/em><\/p>\n<p>NASA educational resources<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>NASA mission updates<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>Rocket launch schedules<path d=\"M7.59009 18.59L9.00009 20L17.0001 12L9.00009 4L7.59009 5.41L14.1701 12\" style=\"animation: initial !important; background: initial !important; border: 0px !important; box-shadow: none !important; color: inherit !important; cursor: inherit !important; direction: inherit !important; display: inline !important; fill: currentcolor !important; filter: initial !important; float: none !important; margin: 0px !important; opacity: initial !important; outline: 0px !important; overflow: initial !important; padding: 0px !important; stroke: initial !important; transform: initial !important; vertical-align: initial !important; visibility: inherit !important;\"><\/path>\n<p>     (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n<p>Currently in a 48 hour launch scrub turnaround, due to the LH2 ECO sensor failures, NASA has two clear options to them: to repair the fault \u2013 now thought to be within the External Tank, or fly with rationale that allows the removal of the LCC (Launch Commit Criteria) that requires three of the four ECO sensors to be in full working order.<\/p>\n<p>The second option will rely on a plan being completed by Flight Control staff, who will monitor the tank\u2019s use of propellant during the ride to orbit.<\/p>\n<p>It was the second option which was taken by the MMT, along with a scrub to the countdown if the sensors fail again, with the full LCC (Launch Commit Criteria) of 4\/4 working ECO sensors required.<\/p>\n<p>\u2018The team has a long discussion today. At the end of the day we asked the team to go home and think about it, with another MMT at 1pm on Saturday,\u2019 said shuttle manager Wayne Hale.&nbsp;<\/p>\n<p>\u2018The flight control team proposal, if accepted, would lead us to go for a launch on Sunday. If not, we will standdown and do something different. We don\u2019t want to get launch fever.\u2019<\/p>\n<p>A memo from the Flight Director Office (DA8) outlined their current work on creating procedures. Presentations have since been acquired by L2, with an article to follow on Saturday.<\/p>\n<p>\u2018Within MOD that effort is being led by Ascent Flight Director\/Norm Knight and Entry Flight Director\/Bryan Lunney. Folks from the Booster, DPS and FDOs arenas are also heavily involved,\u2019 noted the memo. <\/p>\n<p>\u2018The Boosters are working to understand the root cause, possible work-around options, and developing rationale to fly with less than four sensors. The FDOs are helping to develop flight rationale, including an understanding of past flight history and SSME shutdown options. <\/p>\n<p>\u2018The DPS folks are working with the Boosters to no-op any failed ECO sensors in the flight software, should the community agree that is the proper course of action. <\/p>\n<p>\u2018The flight software sensor no-op would occur via uplink (i.e., TMBU or GMEM) and be verified via SAIL in conjunction with the Flight Software and Engineering community.\u2019 <\/p>\n<p>ET documentation presentated to the MMT gave strong rationale to go ahead with a tanking test to be carried out prior to a launch. However, this was played down before heading to the MMT.<\/p>\n<p>\u2018Rational for a Tanking test is being developed. The MMT would like to understand if there is any benefit to performing a tanking test prior to a launch attempt. As of now there are no approved plans to perform a tanking test prior to STS-122\/1E,\u2019 added information.<\/p>\n<p>\u2018This 48 hour scrub means the vehicle is being turned around for a launch attempt on Saturday 12\/8. The team should remain ready to support launch and flight operations on Saturday, including update of any pre-flight products required to support that date (trajectory, pointing, communications planning info).\u2019 <\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"WIDTH: 205px; HEIGHT: 147px\" height=\"130\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=13815\" width=\"200\" align=\"left\" vspace=\"5\" border=\"0\/\"><font face=\"Verdana\" color=\"#0000ff\"><em>**Ride home through the fire,&nbsp;sparks&nbsp;and plasma of re-entry with Atlantis, Discovery and Endeavour.&nbsp;FIVE&nbsp;Stunning high quality&nbsp;2hr, 355-400mb Camcorder and HUD videos \u2013 from payload bay closure \u2013 through re-entry with an&nbsp;astronaut held camcorder video \u2013&nbsp;to post landing \u2013 several more videos showing landing from 90,000 ft also available and HUD videos from STA landings. Now includes HALO II Re-entry video, and re-entry videos from Gemini and Apollo (converted from 8mm)**<\/em><\/font><\/p>\n<p>The MMT was delayed by an hour \u2013 to 3pm Eastern \u2013 due to the large amount of data being brought to the table. ET Project and JSC Engineering were believed to be against any launch attempt on Saturday. <\/p>\n<p>\u2018Keep in mind this is a fluid situation and things can change rather rapidly. Ideally we\u2019ll find the problem that is easily fixed and launch shortly after,\u2019 noted the Flight Director\u2019s office. <\/p>\n<p>\u2018It is our job to maintain a posture to support the early December launch window. If we happen to launch late in this December window, we will potentially fly over the Christmas holiday. Please be patient, we will launch when the vehicle and team are ready.\u2019<\/p>\n<p>The MMT was&nbsp;presented with several possible causes for the ECO sensor faults, which include: \u2018Short or open in sensor. Short or open in ET cabling. Short or open in ET connector,\u2019 though all three are classed as improbable.<\/p>\n<p>Downstream with the orbiter, ET claim it could be related to: \u2018Short or open in Orbiter cabling. Short or open in Orbiter connector. Intermittent in Orbiter sensor electronics box. Intermittent for Orbiter MDM input,\u2019 though this is believed to have been cleared by engineers.<\/p>\n<p>After the MMT, a root cause was still outstanding.<\/p>\n<p><em><u>ET:<\/u><\/em><\/p>\n<p>An 8 inch crack has been reported on one of the LOX Feedline brackets. Photographs are being taken at the pad, with evaluations to take place over the coming hours. PAO claim it is not an actual crack, but scuff (thus not a problem).<br \/><em><br \/><\/em><font color=\"#0000ff\"><em>L2 members<\/em><\/font><em>: All documentation&nbsp;\u2013 from which the above article has quoted snippets \u2013 is available in full in the related L2 sections, updated live.<\/em><\/p>\n<p><em><font face=\"Arial\" color=\"#0000ff\" size=\"2\">**STARLIGHT: NEW STS-117 MISSION&nbsp;REVIEW&nbsp;MUSIC&nbsp;VIDEO**&nbsp;\u2013 STS-118 Mission review video also available.<\/font><\/em><font face=\"Arial\"><\/font><font size=\"2\"><em>&nbsp;<\/em><\/font><\/p>\n<p><font color=\"#ff0000\">**ROCK YOU LIKE A HURRICANE: STS-117 MISSION&nbsp;REVIEW&nbsp;MUSIC&nbsp;VIDEO \u2013 AS SEEN BY THE STS-117 CREW!!**<\/font>&nbsp;-.<br \/><font size=\"1\">(<em>Video section is FREE, but you need to sign up as a member of the forum to enter the video section of the site. We only use your e-mail to send you your password. It will not be used for spam etc.)<\/em><\/font><em><\/em><em><font face=\"Arial\" size=\"2\"><\/font><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Mission Management Team (MMT) have concluded their meeting on flight rationale for proceeding with the launch of Shuttle Atlantis on STS-122, deciding to make a launch attempt on Sunday at 3:21pm Eastern, in a one minute launch window. The main reason for waiting an extra day would be to finalize Flight Controller procedures for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[],"class_list":["post-41532","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41532"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=41532"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41532\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}