Lockheed Martin has reached a pivotal milestone with the successful completion of a critical design review for a communications satellite intended for the U.S. Space Force’s Space Development Agency (SDA).

The project at hand involves Lockheed Martin’s role in constructing 42 satellites for the Tranche 1 Transport Layer, a mesh network situated in low Earth orbit. This intricate network is designed to provide support for U.S. military operations and is being developed in collaboration with the U.S. Space Force’s Space Development Agency.

Lockheed Martin secured a substantial contract worth $700 million in February 2022, tasked with producing these satellites. The selected satellite buses are manufactured by Terran Orbital, enhancing the project’s collective expertise. Notably, the Tranche 1 Transport Layer initiative encompasses a total of 126 satellites, including contributions from other prominent space industry players such as Northrop Grumman and York Space Systems.

A groundbreaking aspect of the Tranche 1 Transport Layer is its pioneering use of smaller and more cost-effective satellites for global military communications and data relays. This approach marks a significant departure from traditional methods, highlighting the evolving landscape of defense communication technology.

Kevin Huttenhoff, Lockheed Martin’s Senior Manager for Space Data Transport, highlighted the collaborative effort between Lockheed Martin and SDA in thoroughly vetting the satellite and ground designs, which encompassed not only Lockheed Martin’s contributions but also those of various suppliers.

The critical design review process itself was notable for its meticulousness. In order to simulate the actual satellite, Lockheed Martin employed 3D printing to create a full-scale replica of the Tranche 1 satellite, providing a comprehensive visual representation for evaluation.

Furthermore, the review encompassed an optical communications terminal interoperability test, an integral element due to all SDA satellites being equipped with optical terminals for in-space communication.

Looking ahead, SDA is targeting late 2024 for the commencement of launches for the Tranche 1 Transport Layer, marking a significant step forward in the implementation of this innovative satellite network. Lockheed Martin’s achievements in this endeavor further solidify its reputation as a leading figure in aerospace technology and defense innovation.

As part of a distinct contract valued at $187.5 million, Lockheed Martin undertook the construction of 10 satellites designated for the Tranche 0 Transport Layer. Alongside these, one satellite from York Space and two missile-tracking satellites developed by SpaceX were also slated for inclusion. Initially planned for a June launch, these 13 satellites, now including Lockheed Martin’s contributions, are rescheduled for a late August launch from Vandenberg Space Force Base, California, via a SpaceX Falcon 9 rocket.

However, this launch experienced delays due to encryption security concerns, which prompted coordination with the National Security Agency (NSA). The NSA’s certification is imperative for encryption systems utilized in Department of Defense (DoD) platforms. The SDA official explained that productive exchanges with the NSA have resolved the encryption matters, instilling confidence in the successful resolution of these challenges and paving the way for the anticipated launch by the end of the month.

Lockheed Martin’s involvement in this venture has been seamless, with Kevin Huttenhoff, Senior Manager for Space Data Transport, confirming that the 10 satellites produced by Lockheed Martin are in their final stages, prepared for shipping. This aligns with the company’s commitment to delivering robust and advanced space technologies for defense and communication purposes.

Through the Slingshot 1 mission, Aerospace Corp. has exemplified the efficacy of open standards and nonproprietary interfaces in simplifying the process of satellite integration and operation. This success was evident after over a year of on-orbit functioning, as affirmed by David Hinkley, an operator for Aerospace Slingshot payloads, who stated that Slingshot has achieved significant accomplishments.

The Slingshot 1 project featured 19 distinct payloads, each developed independently and seamlessly integrated within a few weeks before being launched in July 2022. The launch utilized a Virgin Orbit LauncherOne rocket for a 12-unit cubesat.

This efficient integration was facilitated by Handle, a modular plug-and-play interface. Handle enables payloads to access power from the satellite bus and establish communication not only with the host satellite but also with other payloads. This connectivity operates on a peer-to-peer network, allowing every payload to establish communication pathways. Alexander Utter, Slingshot’s lead for command and data handling, and the principal investigator for Slingshot payload SatCat5, elucidated the nature of this system.

As Slingshot embarks on its extended mission phase, Aerospace Corp. is leveraging the plug-and-play design of Slingshot’s architecture for supplementary missions and encouraging satellite operators to contemplate its adoption.

While the Slingshot standard has not yet received official endorsement from international standards bodies, Alexander Utter expressed confidence in its progress beyond the current technological norm.

After slightly over a year in space, the Slingshot payloads persist in showcasing self-sufficiency, robotic capabilities, and onboard processing. Furthermore, the satellite is outfitted with a GPS transponder, a hydrogen peroxide thruster, and a laser communications downlink.

The universal interface of Slingshot has enabled payloads to effectively share resources.

To illustrate, consider Vertigo, a modular attitude control system designed to orient Slingshot toward specific ground targets. This system accesses processing capabilities via Slingshot’s local area network. Consequently, Vertigo doesn’t require an independent high-capacity processor of its own.

Another innovative payload integrated into Slingshot focuses on machine learning applied to rendezvous and proximity operations. Within this setup, a camera placed on Slingshot observes a miniature cubesat replica affixed to an expandable panel on the satellite’s exterior. By observing this miniaturized satellite across various lighting conditions, orientations, and backgrounds, valuable training data is gathered for machine learning algorithms.

On July 17th, a Rocket Lab Electron rocket successfully placed seven smallsats into orbit for three different customers. This launch not only marked a significant achievement in satellite deployment but also moved the company closer to realizing its goal of reusing the Electron rocket’s booster.

The launch took place at Rocket Lab’s Launch Complex 1 on New Zealand‘s Mahia Peninsula at 9:27 p.m. Eastern Time. Originally scheduled for July 14th, the launch was delayed to allow the company to make final preparations for both launching the rocket and recovering the booster.

During the mission, the Electron rocket’s kick stage executed multiple burns to deploy the payloads into their respective orbits. The deployment sequence began with four NASA Starling 6U smallsats and two Spire 3U smallsats, which were placed into a 575-kilometer sun-synchronous orbit. Subsequently, after two additional burns, the kick stage released Telesat’s LEO 3 satellite into a 1,000-kilometer orbit approximately an hour and 45 minutes after liftoff.

Among the payloads were four NASA Starling satellites that will test autonomous swarm operations, two Spire satellites intended to enhance the company’s weather data collection capabilities, and Telesat’s LEO 3 satellite, the largest spacecraft on the mission. LEO 3, built by the University of Toronto’s Space Flight Laboratory for Telesat, will aid the Canadian satellite operator in ongoing tests for its future Lightspeed constellation, which had previously been carried out by another prototype satellite nearing the end of its operational life.

The “Baby Come Back” mission presented Rocket Lab with an opportunity to test the viability of recovering and reusing the first smallsats stage of its Electron rocket. As part of their ongoing efforts, the company introduced several modifications to the rocket and adjusted its recovery approach. The initial plan to capture falling boosters mid-air was changed to allow them to land in the ocean. The mission’s webcast showed the retrieved booster on a ship shortly before the final satellite’s deployment.

Rocket Lab’s CEO, Peter Beck, expressed their progress towards reusability, stating that they are now closer than ever to achieving the first relaunch of a booster. Beck mentioned that the recovered booster was in excellent condition.

Beck did not provide a specific timeline for when reusability might be achieved. However, the company plans to reuse a Rutherford engine on an Electron launch later in the year. Wayne McIntosh, the team lead for Electron reusability at Rocket Lab, outlined a series of flight tests in the works before actual reuse is considered.

McIntosh stated that there will be incremental changes introduced in future launches, with a significant shift in the 45th flight. This launch dubbed the “golden child,” will involve sealing changes that will enable accurate vehicle disposition for reuse. The “Baby Come Back” mission marked the 39th flight of an Electron rocket.

Rocket Lab’s recent launch marked its seventh mission this year, encompassing six orbital launches and the launch of the suborbital variant named Hypersonic Accelerator Suborbital Test Electron (HASTE) from Virginia.

According to Peter Beck, the company’s CEO, Rocket Lab is sticking to its earlier projections of conducting up to 15 Electron launches in this year, a count that includes both orbital missions and HASTE flights. Beck acknowledged that the primary challenge in achieving this launch rate has been customer readiness. He mentioned that they anticipate a busy upcoming season as customers aim to finalize their preparations.

The shifts in the market, such as the bankruptcy of Virgin Orbit, have also influenced Rocket Lab’s operations. For instance, NorthStar Earth and Space, initially planning to launch their space situational awareness satellites with Virgin Orbit, switched to Rocket Lab and signed a contract to launch their first four satellites this autumn on an Electron rocket. Beck highlighted that Rocket Lab has observed increased interest from customers who had initially intended to launch with other providers. Notably, the NASA Starling satellites, originally slated for a Firefly Aerospace Alpha rocket launch, were eventually manifested for Rocket Lab’s mission.

Peter Beck noted that there has been a notable increase in defections from various emerging launch providers this year compared to previous years. Delays and concerns about early flight risks seem to be driving this shift. This trend indicates a degree of uncertainty and volatility within the industry as it continues to evolve.

Beck explained that in the early stages when all providers had only a few launches under their belts, the mission risk was relatively equal for everyone. However, as the industry matures and more launches are completed, the willingness to take on extra risk for potential cost savings diminishes. This is leading customers to opt for providers with proven track records and reliable services.

Rocket Lab has a launch planned for the end of the month, and the company intends to reveal further details about this upcoming mission in the near future.

The most recent satellite required by Intelsat to complete its C-band spectrum clearing and secure almost $5 billion in proceeds is performing well following its launch on August 3rd by a Falcon 9 rocket. Maxar Technologies, the manufacturer of the satellite named Galaxy-37/Horizons-4, reported that the satellite has successfully initiated communication with ground teams and efficiently deployed its solar arrays after separating from the rocket. The launch took place at 1:00 a.m. Eastern from Cape Canaveral Space Force Station in Florida.

It is projected that the chemically powered spacecraft will take approximately three weeks to reach its designated orbital position at 127 degrees West. Jean-Luc Froeliger, Intelsat’s Senior Vice President of Space Systems, revealed that the satellite, weighing five metric tons, is expected to commence operational service by the end of September. This timeline accounts for final health assessments once the satellite reaches its designated geostationary orbit.

The satellite serves two primary purposes. The Galaxy-37 payload operates in C-band and caters to Intelsat’s broadcast clients across the continental United States. Meanwhile, the Horizons-4 payload is a joint venture with Japan’s JSAT International, providing Ku-band connectivity services over the Pacific Ocean and the United States.

Froeliger affirmed that the other six satellites launched by Intelsat within the past ten months, all aimed at transitioning broadcast clients to a narrower section of the C-band spectrum, are now in position and functioning smoothly. This transition facilitates the allocation of more frequencies for terrestrial 5G services across the United States.

With the successful deployment of Galaxy 37, Intelsat is making significant progress towards receiving a total of $4.9 billion from the Federal Communications Commission (FCC) as part of the C-band spectrum clearing process. This progress puts Intelsat on track to vacate the frequencies by December 5th.

In contrast, competitor SES has already completed all the necessary tasks for C-band clearing, aided by the launch of its final two replacement spacecraft by SpaceX in March. SES is expected to receive nearly $4 billion in spectrum-clearing proceeds from the FCC. However, a legal dispute persists between SES and Intelsat regarding the distribution of these funds.

To achieve its C-band clearing strategy, SES acquired a total of six satellites, including a ground spare. The expenses for these replacement satellites and associated costs are being reimbursed by the FCC. The FCC generated over $80 billion through the auctioning of the C-band spectrum to telecommunications companies like Verizon, AT&T, and T-Mobile.

Unlike Intelsat’s previous replacement C-band satellites, Galaxy-37 was launched individually. As a result, SpaceX was able to position the satellite in a high-energy orbit, reducing the amount of fuel it needs to reach its intended orbit.

Jean-Luc Froeliger explained that this unique orbiting position should grant Galaxy-37 an additional three years of operational life compared to the 15-year design life assigned to the other C-band replacement satellites. It’s worth noting that many satellites often continue to function well beyond their initial design life. For instance, Galaxy-13, the satellite that Galaxy-37 is set to replace, was designed for a 15-year life span but has been operational for 20 years.

Notably, Galaxy-13, initially developed by Boeing, marked Intelsat’s first partnership involving a C-band/Ku-band hybrid satellite with JSAT, which contributed a payload named Horizon-1 to the spacecraft.

Additionally, the launch date of Galaxy-37 coincided with the 40th anniversary of Galaxy-1, which was ordered by a company that later merged with Intelsat.

Intelsat employs the Galaxy label for its satellites operating over North America, which primarily cater to media clients. Presently, the company possesses a fleet of over 50 satellites, of which 18 are under the Galaxy brand.

In the span of the last 10 months, Intelsat has successfully launched eight geostationary satellites, including the IS-40e communications satellite launched in April. This achievement is deemed a new milestone in the commercial satellite industry. Notably, the majority of these launches were facilitated by Falcon 9 rockets from SpaceX, highlighting the prominence of SpaceX’s Falcon 9 as a go-to choice for satellite launches.

Jean-Luc Froeliger highlighted that in 1997, Intelsat launched 10 satellites, a feat achieved six years before SpaceX initiated its first launch. However, during that period, Intelsat utilized a broader range of rockets, including Arianespace’s Ariane 4, Lockheed Martin’s Atlas 2, and Russia’s Proton. This historical context emphasizes the evolution of satellite launch technologies and providers over time.