Four small satellites have been ejected from the US Space Force LDPE-2 satellite launched last Nov 1. None of the 4 satellites (USA 340, USA 341, LINUS-A 1, LINUS-A 2) have public orbital data, but are thought to be in a drift orbit a few hundred km above GEO.
The newly ejected satellites are catalog 55138, 55139, 55246, 55247.
twitter.com/planet4589/status/1614877377082826752QuoteFour small satellites have been ejected from the US Space Force LDPE-2 satellite launched last Nov 1. None of the 4 satellites (USA 340, USA 341, LINUS-A 1, LINUS-A 2) have public orbital data, but are thought to be in a drift orbit a few hundred km above GEO.
The LPDE-2 spacecraft placed above GEO by US Space Force in Nov 2022 has released a sixth subsatellite, USA 399 (60741/2022-144K). Orbital data for it are secret but it is likely in a GEO drift orbit and it is probably a 100-kg-class ESPAsat satellite.
Since launching the Tetra-1 satellite on November 1, 2022, the U.S. Space Force’s Space Systems Command’s (SSC) Innovation Development Branch, partnered with Millennium Space Systems, a Boeing Company, has successfully completed the Tetra-1 mission.Tetra-1 was the first in a series of Tetra small satellites paving the way for how SSC leverages non-traditional vendors to provide on-orbit capabilities to the Space Force. As part of SSC’s Innovation and Prototyping Directorate, the Innovation Development Branch rapidly fielded Tetra-1 as a prototype vehicle developed by Millennium Space Systems into geosynchronous Earth orbit (GEO) in less than 18 months. This satellite provided crucial training for more than 250 Guardians and Airmen, enabling operators to experiment and train with various tactics, techniques, and procedures. The capability Tetra-1 provided is critical to space operators’ understanding how to manage a small satellite, especially as SSC identifies what roles small satellites can potentially play in future USSF missions at GEO.Throughout its lifecycle, Tetra-1 was supported a multitude of advanced training events and experimental exercises. Most notably was Tetra-1’s employment in SCARLET STAR, a testing and training campaign spearheaded by the 98th Space Range Squadron and 57th Space Aggressor Squadron of Space Training and Readiness Command (STARCOM). These exercises required coordination across all three USSF Field Commands in order to successfully complete multiple live on-orbit events.Eighteen months after launch, Tetra-1 has now transitioned for residual operations, doubling its expected 1-year mission life. This transition was completed in less than five months by a team comprised of members from multiple organizations to rapidly execute a transfer of the Tetra-1 satellite and its ground station to a mission partner and its ground site.As opposed to retiring the vehicle, these residual operations allow SSC to utilize Tetra-1 as a test bed to characterize satellite component lifespans for future missions. While this is the end of Tetra-1’s original mission, Tetra-1 can continue to be utilized for the foreseeable future, significantly extending the value of Tetra-1 to the USSF and DoD space community.
USA 340, launched 2022-11-01, has completed 2 full circuits of the GEO belt since circularizing its orbit right at GEO graveyard altitude o/a Jul 2024. As it appears to have been decommissioned, the CelesTrak SATCAT has been updated: https://celestrak.org/NORAD/elements/graph-geo.php?CATNR=55138.
