Anduril's First Satellite Sensor Spots Rivals Hiding in Orbital Dark

Anduril Industries said Tuesday its first demonstration satellite has successfully tracked spacecraft maneuvers while orbiting in Earth's shadow, closing a gap that has long let adversary satellites move undetected during orbital night, according to Ars Technica.

The satellite, Anduril-216, flies roughly 590 km (366 miles) above Earth and spends about one-third of each orbit in darkness, Anduril told Ars Technica. That eclipse window is precisely when the company's new long-wave infrared sensor is designed to work.

"What's unique about that is it's got a huge dynamic range," said Gokul Subramanian, Anduril's senior vice president of engineering, per Ars Technica. "It has very low solar exclusion, so we're blocked by the Sun very rarely, and we can see things in full dark."

What does the sensor actually do?

The payload detects heat signatures from other spacecraft, allowing it to image objects even when they are not illuminated by sunlight. Anduril built the sensor using imaging technology the company already applies in its autonomous weapons systems, then adapted it for space, Ars Technica reported.

Why does the Space Force need this capability?

Space Force tracking serves two functions: flagging threatening satellite movements by adversaries and issuing collision-warning alerts to commercial and government operators worldwide. Ground-based radars and optical sensors cover most of that job, but two blind spots remain, said Adam Thurn, Anduril's vice president and general manager of orbital systems, in remarks reported by Ars Technica.

"Right now, we don't have ground sensors in our adversaries' sovereign lands, and then in the eclipse period where we are relying heavily on visible sensors, the satellites that are not illuminated by the Sun, we can't see those," Thurn said. "With the long-wave infrared space sensor, we're looking to close that gap."

What's the business context for Anduril in space?

Anduril-216 was funded entirely with the company's internal capital rather than a government contract, Ars Technica reported. The satellite launched in July on a SpaceX rideshare mission carrying a bundle of technology demonstrations, including an edge-compute processor and an adaptable power-management system, alongside the infrared sensor. Anduril also acquired commercial satellite-tracking firm ExoAnalytic Solutions earlier this year, extending its footprint in space-domain awareness.

Timeline: from launch to demo

• July 2026: Anduril-216 launches on a SpaceX rideshare mission with the infrared sensor, edge-compute processor, and power-management payloads.
• Nov. 11, 2026: Anduril announces the sensor's successful demonstration and releases a single image captured during an eclipse period.

Key terms, briefly

• Long-wave infrared: A sensing band that detects heat rather than reflected sunlight, enabling imaging in darkness.
• Solar exclusion: The portion of time a sensor is blinded by the Sun; Anduril says its sensor's exclusion window is small.
• Orbital night (eclipse period): The roughly one-third of each orbit when a satellite passes through Earth's shadow and is not sunlit.

Anduril did not disclose a timeline for turning the demonstration into an operational constellation, according to Ars Technica's report.