Keep in mind that it could very easily be referring to FY23 not CY23 as it is in a budget.
SDA in 2020 ordered the first eight satellites of the Tracking Layer — known as Tranche 0 — from L3Harris and SpaceX. The first two Tranche 0 satellites are projected to launch in 2023.
QuoteSDA in 2020 ordered the first eight satellites of the Tracking Layer — known as Tranche 0 — from L3Harris and SpaceX. The first two Tranche 0 satellites are projected to launch in 2023. https://spacenews.com/l3harris-northrop-grumman-to-build-28-missile-tracking-satellites-for-u-s-space-development-agency/
SDA, a defense agency tasked to field a large constellation of satellites for communications and missile tracking, in October 2020 awarded SpaceX a $149 million contract and L3Harris a $193.5 million contract to each build four satellites to detect and track ballistic and hypersonic missiles [...]
The eight satellites make up the Tracking Layer Tranche 0. The first Tracking Layer launch, projected for September 2022, is likely to include at least two SpaceX satellites. The second launch, planned for March, will include all four L3Harris satellites and others from the Transport Layer Tranche 0, which are being produced by Lockheed Martin and York Space. SDA said the manifest has not yet been finalized.
1363-EX-ST-2022Mission 1641 from Vandy, NET Late SeptemberNo droneship listedTiming matches SDA flight, which I'm amazed hasn't slipped since it was awarded
A barge, which should be carrying B1071 from Starlink 3-3, has departed from SpaceX's recovery facility in Long Beach.The booster is being towed to Vandenberg for processing for its next launch.
https://twitter.com/spaceoffshore/status/1559136892851036161QuoteA barge, which should be carrying B1071 from Starlink 3-3, has departed from SpaceX's recovery facility in Long Beach.The booster is being towed to Vandenberg for processing for its next launch.
"The launch window opens on the 29th of September," John London, chief of SDA's warfighting integration cell, said last week at the Space and Missile Defense Symposium in Huntsville, Alabama. A SpaceX Falcon 9 rocket will launch the agency's first eight satellites from Vandenberg Space Force Base, California. ...The remaining 20 will launch in spring 2023
1496-EX-ST-2022Mission 1791 Starlink Group 4-29 from SLC-4E, VandenbergNET late SeptemberASDS North 29 47 54 West 116 40 39
The next Falcon 9 launch from Vandenberg is scheduled for late September carrying a tranche of small demonstration satellites for the U.S. military’s Space Development Agency, which is developing a constellation of missile tracking and data relay spacecraft.
Space Development Agency’s first launch slips due to supply chain setbacksby Sandra Erwin — September 14, 2022SDA's second batch of Tranche 0 is still on track to launch in MarchWASHINGTON — The first launch of the Space Development Agency’s low Earth orbit satellites that had been scheduled for late September is slipping to no earlier than mid-December.
The Space Development Agency remains optimistic it will launch next month the first satellites of a planned mesh network of sensors and communications nodes in low Earth orbit, the agency’s director Derek Tournear said Nov. 10.“We have high confidence … but there’s obviously risk there because we are pushing industry to go as quickly as possible,” he said on an online forum hosted by the National Security Space Association.<snip>The satellites trying to make the December launch are “in integration right now, doing last minute finishing touches, putting the payloads on the satellites,” he said. “There was some ground software that we actually had to change.”
Next Spaceflight is listing booster B1071.5 for this launch.https://nextspaceflight.com/launches/details/5657
SDA Tranche 0 Flight 1 on NextSpaceFlight, updated August 3:First stage 1071.5, landing at LZ-4.