Unseenlabs / eo constellation
sourcingtypical 4/5 · 13 factsrfFranceoperational
Unseenlabs delivers data by detecting radio frequency signals emitted by ships across wide areas at sea. Its space-based RF detection is used to enhance maritime situational awareness.
key specs
faq
Who operates Unseenlabs?
Unseenlabs is operated by Unseenlabs. (source, as of 2026-07-05)
How many Unseenlabs satellites are active on orbit?
CelesTrak's catalog currently tracks 16 objects for Unseenlabs. (source, as of 2026-07-11)
When did Unseenlabs first launch?
Unseenlabs first launched on 2019-08-19. (source, as of 2026-07-05)
facts
operatorUnseenlabs
countryFrance
sensor typesrf
sats launched (total)unknown
sats active (claimed)20
sats active (verified)16
sats planned20
orbitLow Earth Orbit (~400-650 km), recent launches into sun-synchronous orbit around 520 km
first launch2019-08-19
latest launch2026-05-03
statusoperational
websiteunseenlabs.com
revisit8 to 12 collections per day depending on latitude
spectral bandsRF: S-band and X-band radar emissions
sats active (verified) counts objects currently tracked in CelesTrak's catalog for this constellation. It is a tracking count, not an operator claim about satellite health.
orbit
orbitLow Earth Orbit (~400-650 km), recent launches into sun-synchronous orbit around 520 km
sats launched (total)unknown
sats active (claimed)20
sats active (verified)16
sats planned20
events
timeline
- 20242024-02-27Unseenlabs announces record breaking fundraising of 85 million euros (source, as of 2026-07-05)
- 20212021-11-26Unseenlabs selected with Cailabs for French military Keraunos laser project (source, as of 2026-07-05)
- 2021-04-27Unseenlabs closes Series B funding round of 20 million euros (source, as of 2026-07-05)
- 20202020-11-20Unseenlabs' BRO-2 and BRO-3 satellites reach orbit on Electron (source, as of 2026-07-05)
- 20192019-08-19Unseenlabs launches first satellite BRO-1 on Rocket Lab Electron (source, as of 2026-07-05)
- 20152015Unseenlabs founded by the Galic brothers in Rennes (source, as of 2026-07-05)
sources
[1] eoportal.org ↗
country2026-07-05sats planned2026-07-05orbit2026-07-05status2026-07-05revisit2026-07-09spectral bands2026-07-09
[2] unseenlabs.com ↗
sensor typesfirst-party2026-07-05sats active (claimed)first-party2026-07-05latest launchfirst-party2026-07-05websitefirst-party2026-07-05
[3] space.skyrocket.de ↗
operator2026-07-05first launch2026-07-05
[4] celestrak.org ↗
sats active (verified)computed2026-07-11
Includes data from Gunter's Space Page: doc_sdat/bro-1.htm