Credit
PEO Soldier · Public domain · Resized · Public domain · Source ↗ · Modified
FORCETALLY
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Measured figures
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Configuration
| Specification | Enhanced Combat Helmet (United States) | Galileo (satellite navigation system) |
|---|---|---|
| Type | Combat helmet[source] | Civilian , commercial[source] |
| Place of origin | United States[source] | — |
| In service | 2012–present[source] | — |
| Used by | See Users[source] | — |
| Designed | 2007[source] | — |
| Manufacturer | Ceradyne and Gentex[source] | OHB[source] |
| Produced | March 2012 – present[source] | — |
| Material | ultra-high-molecular-weight polyethylene ( UHMWPE )[source] | — |
| Country/ies of origin | — | European Union[source] |
| Operator(s) | — | EUSPA , ESA[source] |
| Status | — | Initial services[source] |
| Coverage | — | Global[source] |
| Accuracy | — | 20 cm (public since 24 January 2023)[source] |
| Nominal satellites | — | 24[source] |
| Current usable satellites | — | 28[source] |
| First launch | — | 28 December 2005[source] |
| Last launch | — | 17 December 2025[source] |
| Total launches | — | 14[source] |
| Regime | — | 3 × MEO planes[source] |
| Orbital height | — | 23 222 km[source] |
| Orbital period | — | 10 ⁄ 17 sd (about 14 hours 4 minutes 45 seconds)[source] |
| Revisit period | — | 10 sidereal days[source] |
| Cost | — | €10 billion (initial constellation)[source] |
| Website | — | gsc-europa.eu (European GNSS Service Centre)[source] |
| Origin reported by article | — | European Union[source] |
| Reported operators |
| — |