| E |
|
East |
| EA |
|
Enterprise Architecture |
| EA |
|
Environmental Assessment |
| EAC |
|
Estimate At Completion |
| EAR |
|
Export Administration Regulations |
| ECI |
|
Earth Centered Inertial |
| ECP |
|
Engineering Change Proposal |
| ECR |
|
Environmental Compliance and Restoration |
| ECRA |
|
Electrical Contact Ring Assembly |
| ECRB |
|
Engineering Change Review Board |
| ECSS |
|
European Cooperation for Space Standardization |
| EDU |
|
Engineering Development Unit |
| EED |
|
Electro-Explosive Device |
| EEE |
|
Electrical, Electronic and Electromechanical |
| EELV |
|
Evolved Expendable Launch Vehicle |
| EELV-M |
|
Evolved Expendable Launch Vehicle - Medium |
| EGSE |
|
Electrical Ground Support Equipment |
| eGVAR |
|
emulated GVAR |
| EHIS |
|
Energetic Heavy Ion Sensor |
| EIA |
|
Electronic Industries Alliance |
| EIL |
|
equipment identification list |
| EIRR |
|
External Independent Readiness Review |
| EIS |
|
Environmental Impact Statement |
| ELDR |
|
Enhanced Low Dose Rate |
| ELT |
|
Emergency Locator Transmitter |
| ETU |
|
Engineering Test Unit |
| ELV |
|
Expendable Launch Vehicle |
| EM |
|
Engineering Model |
| EM |
|
Enterprise Management |
| EM |
|
Equivalent Manning |
| EMC |
|
Electromagnetic Compatibility |
| EMI |
|
Electromagnetic Interference |
| EMOSS |
|
Engineering Mission Operations Support Services |
| EMWIN |
|
Emergency Managers Weather Information Network |
| EO |
|
Electro-Optical |
| EO |
|
Engineering Order |
| EOC |
|
Element of Cost |
| EOC |
|
End-of-charge |
| EOCC |
|
Experiment Operations Control Center |
| EOD |
|
End-of-Discharge |
| EOL |
|
End of Life |
| EOS |
|
Electro-Optical System |
| EP&D |
|
Electrical Power & Distribution |
| EPEAD |
|
Energetic Proton, Electron, and Alpha Detector |
| EPIRB |
|
Emergency Position Indicating Radio Beacon |
| EPS |
|
Electrical Power Subsystem |
| EPS |
|
Energetic Particle Sensor |
| ER |
|
Eastern Range |
| ERB |
|
Earth Radiation Budget |
| ERB |
|
Engineering Review Board |
| ER/WR |
|
Eastern Range/Western Range |
| ESD |
|
electro static discharge |
| ESPC |
|
Environmental Satellite Processing Center |
| ESTE |
|
Electrical System Test Equipment |
| ETE or E-T-E |
|
End-to-End |
| ETM |
|
Engineering Test Model |
| ETS |
|
Engineering and Test Support |
| ETU |
|
Engineering Test Unit |
| EU |
|
Electronics Unit |
| EU |
|
Expected Utility |
| EUV |
|
Extreme Ultraviolet |
| EUVS |
|
Extreme Ultraviolet Sensor |
| eV |
|
electron Volts |
| EV |
|
Expected Value |
| EVM |
|
Earned Value Management |
| E/W |
|
East/West (or East – West) |
| EWSK |
|
East/West Stationkeeping |
| EXIS |
|
Extreme Ultraviolet (EUVS) and X-ray Irradiance Sensor (XRS) |
