TAMPA, Fla. — Aspect Aerospace, a University of South Alabama spin-off, has secured $2.4 million to develop circuit-board-sized spacecraft that could be deployed from space into very low Earth orbit (VLEO) in swarms to monitor the space environment.
The funding includes a $1.9 million U.S. Space Force grant to build a space-ready Single-Board Satellite (SBS) prototype within 18 months, the startup announced April 1, and a $500,000 pre-seed investment from venture capital firm SOSV.
The SBS would integrate sensing, communications and power systems onto a single printed circuit board, with units designed to last about six months in VLEO. According to Aspect Aerospace, a host spacecraft about the size of a dorm fridge could carry up to 100 of them for individual or batch deployment from a more stable orbit just above VLEO, at roughly the cost of a single conventional ESPA-class satellite.
“The ability of Aspect Aerospace’s SBS to remain stored on orbit in large numbers and be deployed in response to events is unprecedented,” said cofounder and CEO Drew Russ. “By implementing a satellite on a single printed-circuit board, size, weight, and cost are minimized and the satellite can be manufactured cost-effectively in high volume.”
Improving space-weather visibility
Aspect Aerospace’s initial focus is on monitoring plasma in VLEO, where space weather and atmospheric drag can significantly affect satellite operations.
Today, plasma is primarily measured using radio occultation.
“This is a coarse measurement,” Russ said, “it sums the plasma over a multi-hundred-kilometer path — and provides no insight into the distribution of plasma along the path. In fact, the method is so coarse that plasma is treated as if it exists at a single altitude, in effect a two-dimensional model.”
Aspect Aerospace’s system instead uses a proprietary time-domain impedance probe (TDIP) sensor to take near-instantaneous point measurements.
As individual SBS units move through orbit, Russ said they would generate high-resolution data that can be combined across a constellation to produce a three-dimensional model of plasma with sub-meter precision.
“The high‑fidelity data is a game‑changer for satellite operators,” he told SpaceNews via email, “enhancing communication‑link optimization, delivering accurate space‑weather storm alerts, supporting safe‑mode decisions and powering many other mission‑critical applications.”
The SBS builds on earlier work with Jagsat-1, a 2U cubesat deployed from the International Space Station into the low end of low Earth orbit (LEO) in 2022, which Russ said validated its space-weather sensor before de-orbiting.
He said additional suborbital tests and independent validation by the U.S. Naval Research Laboratory confirmed the sensor’s near-instantaneous measurement capabilities.
Beyond plasma monitoring, the data could also be used to map atmospheric drag in VLEO.
“This data is valuable across the space industry,” Russ said, “anyone downlinking data from space, sending signals up to satellites, or operating in LEO need to know about this environment.”
Every radio signal traveling to or from a satellite passes through the ionosphere, where changing conditions can disrupt communications, particularly during severe space-weather events.
“The impact is spacecraft have to re-do downlinks and lose valuable time on orbit waiting to send data down, consuming power and increasing latency,” he added.
“Our data enables operators to optimize when and where to downlink, how to tune parameters for optimal uplink for ground stations and let spacecraft operators minimize time in safe mode due to inclement space weather. Providing particle density data to inform spacecraft drag is another use case that provides an additional market opportunity within space operations.”
Path to orbit
The Space Force’s Direct-to-Phase-2 Small Business Innovation Research (SBIR) award allows Aspect Aerospace to bypass Phase 1 and move directly toward building a flight-ready system.
“We’re lucky that our first mission won’t just be a ‘demonstrator,’ but a true science-generating mission, exploring a largely unexplored region of space with unprecedented accuracy and more capable sensing technology,” Russ said.
Aspect Aerospace is targeting early 2027 to deploy on orbit, pending negotiations with launch and mission operations partners as it pursues plans for persistent SBS hosting in space.
Operating in a harsh orbital regime
“VLEO is an extremely harsh environment, and exotic spacecraft architectures are needed to have a persistent presence in the region,” Russ said.
“For some, that means extremely expensive, new technologies like air-breathing engines, letting them deploy a small number of large spacecraft into VLEO. Aspect Aerospace has taken the opposite approach. Our spacecraft are extremely small and low cost, letting us put full-scale constellations in a region where others struggle to deploy even a single satellite.”
From above VLEO, Russ said a host satellite could last five years in orbit while deploying five to 10 SBS units at a regular cadence.
“Other missions might involve having a host dwell for a long time before independently tasking and deploying batches on-demand in response to timing-critical events,” he added. “Other missions may want to immediately deploy all 100 at once.”
Aspect Aerospace is also seeking partners to expand beyond plasma monitoring and use the SBS architecture to host magnetometers, infrared spectrometers, radiation and other sensors.
“We foresee the potential to create a full constellation of novel sensor types for the cost of a single conventional satellite, expanding the envelope of possibilities for space-based environmental monitoring,” he said.