{"id":793300,"date":"2026-10-06T03:16:15","date_gmt":"2026-10-06T03:16:15","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/793300\/"},"modified":"2026-10-06T03:16:15","modified_gmt":"2026-10-06T03:16:15","slug":"spacex-scrubs-launch-attempt-for-21-data-transport-satellites-for-the-space-development-agency-spaceflight-now","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/793300\/","title":{"rendered":"SpaceX scrubs launch attempt for 21 data transport satellites for the Space Development Agency \u2013 Spaceflight Now"},"content":{"rendered":"

\"\"SpaceX scrubbed its launch attempt of the Space Development Agency\u2019s Tranche 1 Transport Layer A mission on Monday, Oct. 5, 2026. Image: SpaceX via livestream<\/p>\n

Update Oct. 5, 8:48 p.m. EDT (0048 UTC): SpaceX is foregoing its next launch attempt; next launch opportunity is Thursday.<\/p>\n

SpaceX will have to wait at least another day before launching a new batch of data satellites to low Earth orbit on behalf of the United States Space Force\u2019s Space Development Agency (SDA). The launch planned for early Monday morning was scrubbed in the final minute of the count as rocket was shifting into its automated startup sequence.<\/p>\n

SpaceX didn\u2019t provide a reason for the abort. The company was initially targeting Tuesday, Oct. 6, for its next launch attempt, but waived off that opportunity as well.<\/p>\n

A new launch date hasn\u2019t been announced.<\/p>\n

The mission, dubbed Tranche 1 Transport Layer A (T1TL-A), is the fourth mission sending production satellites into orbit for the SDA. This is one piece of a broad constellation \u2014 called the Proliferated Warfighter Space Architecture (PWSA) \u2014 designed to support the U.S. military and its allies through space-based capabilities, like missile tracking and secure communications.<\/p>\n

\ufeff<\/p>\n

The mission will use Falcon 9 first stage booster B1103. This will be its sixth flight following the launches of the SDA\u2019s T1TL-E, NROL-179, and three batches of Starlink satellites.<\/p>\n

Less than 7.5 minutes after liftoff, SpaceX plans to land B1103 at Landing Zone 4. If successful, this will be the 37th landing at LZ-4 and the 668th Falcon booster landing to date.<\/p>\n

Building out the constellation<\/p>\n

The T1TL-A mission is one of 23 missions awarded to SpaceX as part of the National Security Space Launch (NSSL) Phase 2 contract awarded in August 2020, which is managed by the U.S. Space Force\u2019s Space Systems Command (SSC). The previous missions from the SDA have already been launched:<\/p>\n

T1TL-B \u2013 Sept. 10, 2025
\nT1TL-C \u2013 Oct. 15, 2025
\nT1TL-E \u2013 July 16, 2026<\/p>\n

The T1TL-B and -E missions featured satellites manufactured by York Space Systems and the T1TL-C satellites were produced by Lockheed Martin. Space Force Col. Ryan Hiserote, SSC\u2019s division chief in Assured Access to Space, told Spaceflight Now back in September 2025 that these initial T1TL missions could be launched in any order.<\/p>\n

The 21 satellites flying as part of the T1TL-A mission were manufactured by Northrop Grumman and delivered to Vandenberg Space Force Base on Sept. 28.<\/p>\n

\"\"A row of Northrop Grumman\u2019s Tranche 1 Transport Layer satellites are shown in a warehouse prior to launch on the T1TL-A mission. Image: Northrop Grumman<\/p>\n

Tranche 1 is the initial component of the PWSA constellation is expected to begin providing operational capabilities to the Department of Defense beginning in 2027. When complete, T1 will consist of 126 Transport Layer satellites, 28 Tracking Layer satellites, and four missile defense demonstration spacecraft.<\/p>\n

With the three launches completed to date, there are 63 satellites in orbit.<\/p>\n

\u201cIn close coordination with Space Systems Command (SSC) and Space Launch Delta 30, the deployment of Tranche 1\u2019s proliferated capability will soon deliver continuous overwatch\u2014neutralizing any first-mover advantage\u00a0by delivering data to warfighters around the world, nearly instantaneously,\u201d said GP Sandhoo, SDA Director and Space Force Portfolio Acquisition Executive for Missile Warning and Tracking following the T1TL-E launch in July.<\/p>\n

The SDA said the Transport Layer will consist of between 300 to 500 satellites in low Earth orbit from 750 km to 1,200 km in altitude. The SDA said once complete, 95 percent of the globe will be in view of at least two of the T1TL satellites at any given time.<\/p>\n

\u201cThe constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks,\u201d the SDA wrote. \u201cLEO orbits in conjunction with OISLs will reduce path loss issues but more importantly offer much lower latencies, which are deemed critical to prosecute time sensitive targets in today\u2019s wartime environment.\u201d<\/p>\n

These satellites will be able to integrate with the Link-16 and Integrated Broadcast System (IBS) to allow for \u201ctimely threat warnings and situational awareness information\u201d.<\/p>\n

The launches of these satellites are managed by the SSC\u2019s System Delta 80 (SYD 80) and the Space Fore Portfolio Acquisition Executive for Assured Access to Space.<\/p>\n

\"\"A collection of 21 Northrop Grumman-build satellites for the Space Development Agency\u2019s Tranche 1 Transport Layer A mission. Image: Northrop Grumman<\/p>\n","protected":false},"excerpt":{"rendered":"SpaceX scrubbed its launch attempt of the Space Development Agency\u2019s Tranche 1 Transport Layer A mission on Monday,…\n","protected":false},"author":2,"featured_media":793301,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[59,90,56,54,55],"class_list":["post-793300","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-gb","tag-science","tag-uk","tag-united-kingdom","tag-unitedkingdom"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/793300","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=793300"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/793300\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/793301"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=793300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=793300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=793300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}