The register

Φ-sat-2

Produced the outputs of its AI applications on board during commissioning, for comparison with results obtained on the ground.

• L3 Launched: confirmed by a party with no stake, or by public data. Rests on c5.
• R2 Ran: own technical account. Rests on c2, c3.

Operator	European Space Agency
Developer	The Φ-sat-2 mission team
Host	Φ-sat-2
Where	Earth orbit
Class	perception
Hardware	an "AI accelerator", not named in the abstract; ESA's earlier page planned an Intel Movidius Myriad 2
Model or software	Six AI applications: deep compression, and detection of clouds, streets, vessels, fires and marine anomalies
Launched	16 Aug 2024
Ran	during commissioning, after August 2024
Catalogue	PHISAT 2, number 60470; matched by name, the reviewer's judgement

What was said, and by whom

1. “Launched on August 16, 2024, aboard the SpaceX Transporter 11 rideshare flight”

   Melega et al., the mission team: the mission team. In-Orbit Commissioning Results of the ESA Φsat-2 Mission, Small Satellite Conference 2025 (Melega and seven co-authors, the mission team). Published 11 Aug 2025 (page metadata). Read 4 Oct 2026, in part: about 2,600 of the abstract's 7,100 characters.

2. “fine-tune six onboard AI applications, which include deep compression, cloud detection, street detection, vessel detection, fire detection, and marine anomalies detection”

   Melega et al., the mission team: the mission team. In-Orbit Commissioning Results of the ESA Φsat-2 Mission, Small Satellite Conference 2025 (Melega and seven co-authors, the mission team). Published 11 Aug 2025 (page metadata). Read 4 Oct 2026, in part: about 2,600 of the abstract's 7,100 characters.

3. “compare the abilities of the AI applications to match the results obtained with synthetic data”

   Melega et al., the mission team: the mission team. In-Orbit Commissioning Results of the ESA Φsat-2 Mission, Small Satellite Conference 2025 (Melega and seven co-authors, the mission team). Published 11 Aug 2025 (page metadata). Read 4 Oct 2026, in part: about 2,600 of the abstract's 7,100 characters.

4. “among the first to implement a complete data processing chain onboard”

   Melega et al., the mission team: the mission team. In-Orbit Commissioning Results of the ESA Φsat-2 Mission, Small Satellite Conference 2025 (Melega and seven co-authors, the mission team). Published 11 Aug 2025 (page metadata). Read 4 Oct 2026, in part: about 2,600 of the abstract's 7,100 characters.

5. OBJECT_NAME: PHISAT 2; LAUNCH_DATE: 2024-08-16

   CelesTrak satellite catalogue: a public catalogue. Satellite catalogue record 60470, CelesTrak. Published undated (a live catalogue record; the access date is the date that matters). Read 4 Oct 2026, in full.

6. “The payload will include the AI processor Intel Movidius Myriad 2”

   ESA Φ-lab: the operator. Φ-sats programme, ESA Φ-lab. Published undated (no date in the text; written before Φ-sat-2 was contracted). Read 4 Oct 2026, in part: four excerpts of 3,100 characters.

Where sources disagree

• The launch date. An ESA-run directory, eoPortal, gives 16 June 2024 in two places and August 2024 in a third. The mission team's paper and the catalogue both give 16 August 2024. Resolved: 16 august 2024.

Notes

The abstract reports that outputs were acquired and compared. It gives no accuracy for the applications in orbit.

Changed

Launch confirmed from the catalogue.

This record as data