Kleos Space S.A. announced that its four Observer Mission (KSF3) satellites are manifested to launch on 3 January 2023 aboard the Transporter-6 SpaceX mission. The launch window opens at approximately 09:56 EST (14:56 UTC or 15:56 CET on 3 January 2023 /01:56 AEDT on 4 January 2023). The Observer Mission satellites will launch into a 525km sun synchronous orbit under contract with Spaceflight Inc., who provided the launch and integration services through ISISPACE.

The satellites have been integrated with the SpaceX Falcon 9 rocket at the Cape Canaveral Space Force Station launch site in Florida.