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<\/em><\/font>NASASpaceflight.com has started live coverage of the event, with expert commentary, images, video and source information provided on the links below.<\/font><\/em><\/p>\n**STS-121: Launch Attempt 1: July 1 Update Pages**<\/font> \u2013 One stop live updates.<\/p>\n <\/font>Key points during the countdown:<\/p>\n ECO (Engine Cut Off sensors) has no issues.<\/p>\n \u2018<\/font><\/font>ECOs do look okay; they performed the \u2018switchout\u2019 test as planned (after both LO2 and LH2 five percent sensors indicated wet) and all the sensors switched to DRY, which indicated that they work properly,\u2019 noted a source. <\/p>\n \u2018They\u2019ve been switched back to WET, although I don\u2019t know why so early \u2013 they \u2018normally\u2019 do that around the end of the T-9 minute hold.\u2019<\/p>\n <\/font><\/font>Off nominal update round up:<\/p>\n <\/font> Troubleshooting was on-going throughout the countdown, with the decision to proceed to fly \u2018as is\u2019 after a management\/engineering meeting classed the fault as not a constraint for launch. <\/p>\n NASA refer to an issue with the heater on the venire control system on the left OMS pod.\u2019 Preview:<\/p>\n Discovery\u2019s mission currently has no \u2018poke-outs\u2019 from the Management Mission Team (MMT), who last noted: \u2018No formal constraints to STS-121 launch were identified at the MMT. All MMT members were GO.\u2019<\/p>\n The last issues to be worked out in preparation for this launch were deemed minor, including a Radiator Retract Hose issue, Tyvek Cover replacement \u2013 and a slight delay for the official go for the Eastern Range. <\/font><\/p>\n Other issues noted: \u2018Lightning strike \u2013 3 ground cameras were affected are back up and operational. Potential impact to radar(s) but not a constraint to launch.\u2019 <\/p>\n More to follow\u2026<\/p>\n **INFRARED STS-121 MUSIC VIDEO**<\/em> \u2013 <\/em><\/font>Trust Discovery.<\/font> **NASASpaceflight.com Job Opportunities**<\/font> <\/font><\/em><\/p>\n <\/u><\/p>\n Spaceflight history books (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Shuttle Discovery has scrubbed her launch attempt for second test flight mission STS-121, from the Kennedy Space Center, Florida. The first launch opportunity was targeted for 3:50pm local time (8:50pm UK time) \u2013 but the weather constraint \u2013 notably anvil clouds over the RTLS abort (Return To Landing Site) flight path \u2013 proved to be […]<\/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-42024","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/42024"}],"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=42024"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/42024\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=42024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=42024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=42024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}A potential scrub issue was noted this morning, due to Orbiter RCS (Reaction Control System) heater problem.
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\u2018There is some discussion over whether or not to continue to prepress <\/b>(to test the prepress system<\/b>) if we do scrub,\u2019 noted a source, speaking earlier about the potential of testing the tank despite a scrub being called.<\/font><\/p>\n<\/font><\/p>\n
(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><\/font><\/font><\/font><\/p>\n<\/em><\/font>
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<\/em><\/font>LIVE UPDATE PAGES<\/em><\/font><\/p>\n