Space Systems Command
U.S. Space Force space development
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| December 8 2023 | Space Systems Command (SSC) activated the first two provisional System Deltas (SYDs) during a command ceremony at Los Angeles Air Force Base, implementing a new prototype organizational structure to maximize mission-focused acquisitions and system development. |
| October 13 2023 | Chief of Space Operations Gen. Chance Saltzman announced the creation of provisional Integrated Mission Deltas (IMDs) in a CSO Notice To Guardians, outlining a new organizational concept focused on mission areas. |
| July 14 2022 | Redesignated as Space Base Delta 3. |
| August 13 2021 | Redesignated as Los Angeles Garrison and became part of the Space Force. |
| July 29 2021 | Michael Guetlein was confirmed with a promotion to lieutenant general. |
| April 22 2021 | Transferred from U.S. Air Force to U.S. Space Force and reassigned from Space Operations Command to Headquarters United States Space Force. |
| April 13 2021 | Space Systems Command officially unveiled its new emblem and flag, replacing the previous Space and Missile Systems Center emblem, symbolizing the transition and modernization of the U.S. Space Force's space development capabilities. |
| October 2020 | Redesignated as Space Operations Command. |
| July 15 2020 | Col Becky M. Beers assumes command, succeeding Col Ann M. Igl |
| 2019 | Evolved Expendable Launch Vehicle program renamed to National Security Space Launch. Space and Missile Systems Center underwent SMC 2.0 reorganization, establishing Development Corps, Production Corps, Enterprise Corps, and Atlas Corps. |
| 2019 | SMC 2.0 reorganization established new organizational structure including Development Corps, Production Corps, Enterprise Corps, and Atlas Corps. |
| December 20 2019 | United States Space Force was established as an independent service, with Air Force Space Command being redesignated as United States Space Force while functionally remaining a major command within the Air Force. |
| July 20 2018 | The 30th Launch Group was reemerged with the 30th Operations Group to streamline Air Force Space Command organizations. |
| July 11 2018 | Col Ann M. Igl takes command, succeeding Col Charles P. Roberts |
| 2016 | SpaceX awarded its first military launch under the Evolved Expendable Launch Vehicle program, using Falcon 9 and Falcon Heavy boosters. |
| June 30 2016 | Col Charles P. Roberts assumes command |
| 2011 | First Space-Based Infrared System (SBIRS) satellite launched. |
| November 10 2010 | Wings and groups were redesignated as directorates and divisions as part of an Air Force acquisitions-wide effort. |
| August 1 2010 | Col Frank W. Simcox takes command |
| July 30 2010 | Redesignated back to 61st Air Base Group. |
This contents of the box above is based on material from the Wikipedia articles Space Base Delta 3, Space Systems Command & Space Launch Delta 30, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.