UARX Space Blames a Ground-Station Setting for OSSIE-D's Blackout After Launch

UARX Space's first orbital transfer vehicle, OSSIE-D, lost communications after its Oct. 1, 2026 launch on SpaceX's Transporter-18 rideshare, and the company traced the blackout to a ground-station configuration error, SpaceNews reported on Oct. 19.

The vehicle is a 200-kilogram-class platform from the Spanish startup, built to carry small satellites to their own orbits. The mission was its first, and the fault UARX identified sat on the ground side.

A blind command two days after launch

SpaceNews' Debra Werner wrote that UARX sent a backup command two days after launch, on Oct. 3, to enable its fault detection, isolation and recovery automation so payloads could deploy without ground-station intervention. With no two-way link, the team could not confirm the command arrived.

Later telemetry showed it had. UARX said the blackout came from "a configuration error on the interface of the Ground Station service we are using." Once corrected, communications have been nominal since.

Day after Oct. 1 launch	Event
0	Launch on Transporter-18; communications lost
2	Backup command sent without confirmation
7	Originally scheduled first deployment
30	Originally scheduled second deployment

1. Backup command sent2 days
2. First planned deployment7 days
3. Second planned deployment30 days

Source: SpaceNews, Oct. 19, 2026

Ten contacted, others still aboard

At least 10 PocketQubes have been deployed, and as of Oct. 15 ten had been contacted by customers, according to SpaceNews. Further payloads remain aboard, including Dawn Aerospace's Docking and Fluidic Transfer Port, a hosted payload. Peter Gulzow, president of AMSAT-DL, told SpaceNews that ERMINAZ-2U and 2V are operating and being commissioned, and that the status of ERMINAZ-2X is unknown.

The early deployment left AMSAT-Deutschland's first signals unheard, because the group had not expected release that early. Shawn Cochran, chief executive of Ethereal Space, said his company remains confident in its technology; its two three-unit cubesats for space-weather observation were integrated into UARX's RAMI deployment system. Gustavo Carpignano, chief executive of DIYSatellite, said the satellites his firm arranged are expected to deploy within weeks.

UARX's co-founders declined to comment on the status of the other satellites aboard.

A radio rated TRL 7 and a launch 27 months after plan

OSSIE's communications subsystem is a software-defined radio from the German Aerospace Center. DLR's February 2023 announcement said the radio had reached technology readiness level 7, and described a demonstration mission planned for mid-2024.

Counting from mid-2024 to Oct. 1, 2026, the flight came roughly 27 months after that plan. That timeline is DLR's, not UARX's current schedule, and the sources do not explain the slip.

The failure chain also shows where the dependency sat. The radio is DLR's, but the fault was in the ground-station service UARX rents, and the backup command had to be sent without feedback. The mission also first-flew UARX's SAU&RON deployment rings in 24-inch and 15-inch sizes, per SpaceNews.

What is not known

Neither source says how many of the hosted satellites inside OSSIE-D are healthy, and UARX declined to say. It is also unstated when the remaining deployments will occur. For comparison on how rated figures compare with flown ones, see Ukraine's hexacopter medevac; for a company holding a large raise without shipped hardware, see Mind Robotics.

The next checkable milestone is the deployment of the Ethereal Space cubesats and the DIYSatellite customers' craft, which would show whether the second batch released on a schedule UARX can state with a date.