| E | elastic modulus
|
| E | elevation angle
|
| E&D | engineering and development
|
| E&D | evaluation and development
|
| E&DSG | Electro-Optical and Data Systems Group
|
| E&L | engineering and lab
|
| E&M | electrical and mechanical
|
| E&O | engineering and operations
|
| E-E | end to end
|
| E-O | electro-optic
|
| E-mail | electronic mail
|
| E/B | equipment bay
|
| E/C | encoder coupler
|
| E/D | edge distance
|
| E/L | entry/landing
|
| E/M | engineering model
|
| E/M | escape motor
|
| E/O | engineering/operations
|
| E/OCM | electromagnetic/optical countermeasure
|
| E/P | electron/proton
|
| E/W | energy-to-weight ratio
|
| EA | electronics assembly
|
| EA | elevation angle
|
| EAC | early analysis capability
|
| EAC | employee action circle
|
| EAC | energy-absorbing capacity
|
| EAC | estimate at completion
|
| EAC | experiment apparatus container
|
| EAC | experimental apparatus canister
|
| EACE | early analysis capability enhanced
|
| EAD | electrically alterable device
|
| EADI | electronic attitude director indicator
|
| EADS | engineering analysis and data systems
|
| EADT | experiment agency data tape
|
| EAF | engineering analysis facility
|
| EAF | engineering analysis function
|
| EAFB | Edwards Air Force Base
|
| EAFB | Eglin Air Force Base
|
| EAFB | Ellington Air Force Base
|
| EAI | Electronics Associates, Incorporated
|
| EAL | equipment airlock
|
| EAM | electrical accounting machine
|
| EAM | emergency action message
|
| EAP | Employee Assistance Program
|
| EAR | engineering action request
|
| EAR | engineering analysis report
|
| EAR | environmental analysis report
|
| EAROM | electrically alterable read-only memory
|
| EAS | engine actuation system
|
| EAS | equivalent airspeed
|
| EASE | electric automatic support equipment
|
| EASE | expert activity scheduling environment
|
| EAT | environmental acceptance test
|
| EATR | extravehicular assist teleoperator robot
|
| EB | electronic beam
|
| EB | emergency box
|
| EB | equipment bay
|
| EB | expendable booster
|
| EBC | emulated buffer computer
|
| EBCDC | extended binary-coded decimal
|
| EBD | eyeballs down (+GZ)
|
| EBI | eyeballs in (+GX)
|
| EBL | eyeballs left (+GY)
|
| EBO | eyeballs out (-GX)
|
| EBR | eyeballs right (-GY)
|
| EBS | emergency breathing subsystem
|
| EBU | eyeballs up (-GZ)
|
| EBW | exploding bridge wire
|
| EC | elastic center
|
| EC | element contractor
|
| EC | enabling command
|
| EC | engine control
|
| EC | engine cutoff
|
| EC | engineering change
|
| EC | equipment change
|
| EC | essentiality code
|
| EC | events controller
|
| EC | events coupler
|
| EC | experiment computer
|
| ECA | electronic computer assembly
|
| ECA | electronic control assembly
|
| ECA | engine control assembly
|
| ECA | engineering change analysis
|
| ECA | epoxy curing agent
|
| ECAS | experiment computer application software
|
| ECB | Engineering Change Board
|
| ECB | event control block
|
| ECB | event controlled block
|
| ECB | events control buffer
|
| ECC | engineering change control
|
| ECC | engineering critical component
|
| ECCAP | electromagnetic compatibility circuit analysis program
|
| ECCAP | electromagnetic compatibility computer analysis proposal
|
| ECCAP | electromagnetic compatibility computerized analysis
|
| ECCB | Engineering Change Control Board
|
| ECCCS | emergency command control communications system
|
| ECCM | electronic counter-countermeasure
|
| ECCP | experiment configuration control panel
|
| ECD | engineering control drawing
|
| ECD | entry corridor display
|
| ECD | estimate at completion change document
|
| ECD | estimated completion date
|
| ECDU | electronic coupling display unit
|
| ECF | equivalency capability file
|
| ECG | electrocardiogram
|
| ECG | electrocardiograph
|
| ECG | electrocardiography
|
| ECG | electroepitaxial crystal growth
|
| ECI | Earth-centered inertia
|
| ECI | employment cost index
|
| ECK | emergency communication key
|
| ECL | electronic circuit logic
|
| ECL | emitter coupled logic
|
| ECLS | environmental control and life support
|
| ECLSS | environmental control and life support system
|
| ECM | electromagnetic countermeasure
|
| ECM | electronic countermeasure
|
| ECM | engineering change management
|
| ECM | error correcting memory
|
| ECN | engineering change notice
|
| ECO | electron-coupled oscillator
|
| ECO | engine combustion
|
| ECO | engine cutoff
|
| ECO | engineering change order
|
| ECOS | experiment computer operating system
|
| ECP | engineering change proposal
|
| ECP | engineering control program
|
| ECP | explicitly coded program
|
| ECR | engineering change request
|
| ECR | equipment change record
|
| ECR | experiment change record
|
| ECR | experiment concept review
|
| ECRA | engineering change request authorization
|
| ECRC | Engineering Contract Requirements Committee
|
| ECRV | exponentially corrected random variable
|
| ECS | effective cross section
|
| ECS | electrical control station
|
| ECS | engine control system
|
| ECS | environmental control system
|
| ECSS | extendable computer system simulator
|
| ECT | experiment command tape
|
| ECU | electrical control unit
|
| ECU | electrical conversion unit
|
| ECU | electronic coupling unit
|
| ECU | engine control unit
|
| ECU | environmental control unit
|
| ECU | extreme closeup
|
| ED | Engineering Directorate
|
| ED | Engineering Division
|
| ED | edge distance
|
| ED | engineering directive
|
| ED | explosive device
|
| EDA | electronic display assembly
|
| EDA | elevation drive assembly
|
| EDAC | error detection and correction
|
| EDB | environmental data book
|
| EDC | Engineering Data Center
|
| EDC | engineering design change
|
| EDCAS | equipment designer's cost analysis system
|
| EDCC | Engineering Drawing Control Center
|
| EDCP | engineering design change proposal
|
| EDCS | electrical distribution and control system
|
| EDDF | error detection and decision feedback
|
| EDDR | electron dipole-dipole reservoir
|
| EDF | engineering data file
|
| EDI | electronic data interchange
|
| EDI | electronic data interfacing
|
| EDIV | engineering design intent verification
|
| EDL | Engineering Development Laboratory
|
| EDLN | engineering development logic network
|
| EDLS | engineering drawing library system
|
| EDM | electrical discharge machining
|
| EDM | engineering development model
|
| EDMS | electronic data management system
|
| EDO | extended-duration orbiter
|
| EDP | electronic data processing
|
| EDP | embedded data processor
|
| EDPC | Electronic Data Processing Center
|
| EDPE | electronic data processing equipment
|
| EDPL | Engineering Development Processor Laboratory
|
| EDPM | electronic data processing machine
|
| EDR | engineering design review
|
| EDS | electrical distribution system
|
| EDS | emergency detection system (subsystem)
|
| EDS | engineering data system
|
| EDS | engineering design system
|
| EDS | engineering development schedule
|
| EDS | executive data base system
|
| EDS | explosive device system
|
| EDSC | early deployment system concept
|
| EDT | eastern daylight time
|
| EDT | electronic theodolite system
|
| EDTS | electronic data transfer system
|
| EDV | electric depressurization valve
|
| EDV | electronic depressurizing valve
|
| EDW | Edwards (TACAN station)
|
| EE | emergency engineering
|
| EE | end effector
|
| EE | experimental evaluation
|
| EECOM | electrical, environmental, and communications
|
| EECOM | electrical, environmental, consumables, and mechanical
|
| EED | electroexplosive device
|
| EEE | electronic, electrical, and electromechanical
|
| EEEU | end effector electronics unit
|
| EEG | electroencephalogram
|
| EEG | electroencephalograph
|
| EEG | electroencephalography
|
| EEH | EMU electrical harness
|
| EEI | Edison Electrical Institute
|
| EEI | essential elements of information
|
| EEL | electrical equipment list
|
| EEM | Earth entry module
|
| EENT | eye, ear, nose, and throat
|
| EEO | Equal Employment Office
|
| EEO | equal employment opportunity
|
| EEP | electronic equipment package
|
| EEPROM | electrically erasable read-only memory
|
| EES | ejection escape suit
|
| EES | emergency ejection suit
|
| EES | escape ejection suit
|
| EESS | emergency egress severance system
|
| EESS | emergency egress slide system
|
| EET | electronic control assembly engine thrust
|
| EET | entry elapsed time
|
| EET | equivalent exposure time
|
| EETB | electronic/electrical termination building
|
| EEU | extravehicular excursion unit
|
| EEWS | emergency egress window system
|
| EF | electronic field
|
| EFA | experiment flight application
|
| EFCS | Earth-fixed coordinate system
|
| EFE | electronic field experiment
|
| EFFGRO | efficient growth (computer program)
|
| EFL | effective focal length
|
| EFL | equivalent focal length
|
| EFP | ESA-furnished property
|
| EFSSS | engine failure sensing and shutdown system
|
| EFTO | encrypted for transmission only
|
| EGA | evolved gas analysis
|
| EGB | electronic gimbal box
|
| EGC | experiment ground computer
|
| EGF | electrical grapple fixture
|
| EGIL | electrical, general instrumentation, and lighting
|
| EGO | eccentric geophysical observation
|
| EGORD | Experiment Ground Operations Requirements Document
|
| EGRET | energetic Gamma Ray Explorer telescope
|
| EGSE | electrical ground support equipment
|
| EGT | elapsed ground time
|
| EGT | estimated ground time
|
| EGT | exhaust gas temperature
|
| EH/M | extension hose mouthpiece
|
| EHA | electrohydraulic actuator
|
| EHC | electrical heating control
|
| EHF | extremely high frequency
|
| EHOT | external hydrogen/oxygen tank
|
| EHP | effective horsepower
|
| EHP | electrical horsepower
|
| EHS | environmental health services
|
| EHSD | existing hardware/software data base
|
| EHX | experiment-dedicated heat exchanger
|
| EI | electronics interface
|
| EI | end item
|
| EI | engineering instruction
|
| EI | entry interface
|
| EI | environmental impact
|
| EIA | Electrical Industries Association
|
| EIASN | end item assembly sequence number
|
| EIAT | end item acceptance test
|
| EIC | Engineering Information Center
|
| EIC | experimental intercom
|
| EICD | experiment interface control document
|
| EID | end item documentation
|
| EIDP | end item data package
|
| EIFA | element interface functional analysis
|
| EIM | engineering information management
|
| EIR | environmental impact report
|
| EIR | experiment integration review
|
| EIRP | effective isotropic radiated power
|
| EIS | electrical integration system
|
| EIS | end item specification
|
| EIS | engineering information system
|
| EIS | environmental impact statement
|
| EIT | entry interface time
|
| EIU | engine interface unit
|
| EIVT | electrical and instrumentation verification test
|
| EIVT | electrical interface verification test
|
| EIVT | electronic installation verification test
|
| EIWB | end item workbook
|
| EKF | extended Kalmar filter
|
| EKG | electrocardiogram
|
| EKG | electrocardiograph
|
| EKG | electrocardiography
|
| EL | elastic limit
|
| EL | electroluminescence
|
| EL | equipment laboratory
|
| ELACS | extended-life attitude control system
|
| ELB | electrical load bank
|
| ELC | Earth limb clutter
|
| ELDV | electrically operated depressurization valve
|
| ELE | Earth limb experiment
|
| ELF | extremely low frequency (1 Hz to 3 kHz)
|
| ELINT | electronic intelligence satellite
|
| ELM | experimental logistics module
|
| ELMS | elastic-loop mobility system
|
| ELN | Digital Equipment Corporation's real-time operating sn
|
| ELP | English language program
|
| ELRAD | Earth limb radiance
|
| ELS | eastern launch site
|
| ELS | elevon load system
|
| ELS | external lighting system
|
| ELT | emergency locator transmitter
|
| ELV | Earth launch vehicle
|
| ELV | expendable launch vehicle
|
| EM | electromagnetic
|
| EM | engineering model
|
| EM | exception monitor
|
| EM&IAS | electromechanical and integrated avionics subsystem
|
| EMA | electromagnetic analysis
|
| EMA | electromechanical actuator
|
| EMA | engineering and manufacturing aid
|
| EMC | electromagnetic capability
|
| EMC | electromagnetic compatibility
|
| EMC | electromagnetic control
|
| EMC | equivalent mission cycle
|
| EMCC | Emergency Mission Control Center
|
| EMCD | electromechanical control diagram
|
| EMCFA | electromagnetic compatibility frequency analysis
|
| EMCI | engineering model configuration inspection
|
| EMCON | emission control
|
| EMD | entry monitor display
|
| EMDM | enhanced multiplexer/demultiplexer
|
| EMEC | electromagnetic effects capability
|
| EMEC | electromagnetic effects compatibility
|
| EMEC | enhanced master events controller
|
| EMES | electrical, mechanical, and environmental systems
|
| EMF | electromotive force
|
| EMG | electromyogram
|
| EMG | electromyograph
|
| EMG | electromyography
|
| EMI | electromagnetic interface
|
| EMI | electromagnetic interference
|
| EMISM | electromagnetic interference safety margin
|
| EMK | emergency medical kit
|
| EML | Electromagnetic Laboratory
|
| EML | electromagnetic launcher
|
| EMM | electromechanical mockup
|
| EMMA | expert missile maintenance aid
|
| EMMA | expert missile maintenance aim
|
| EMN | engineering management network
|
| EMON | exception monitoring
|
| EMP | electromagnetic pulse
|
| EMP | enhanced MDM pallet
|
| EMP | equipment mounting plate
|
| EMPGS | electromechanical power generation subsystem
|
| EMR | Eastern Missile Range
|
| EMR | engine mix ratio
|
| EMR | engine mixture ratio
|
| EMR | executive management review
|
| EMRL | equipment maintenance requirements list
|
| EMRLD | excimer moderate Raman-shifted laser device
|
| EMS | electromagnetic susceptibility
|
| EMS | engineering master schedule
|
| EMS | entry monitor subsystem
|
| EMS | entry monitoring system
|
| EMSP | enhanced modular signal processor
|
| EMT | electrical metallic tubing
|
| EMU | engineering model unit
|
| EMU | extended memory unit
|
| EMU | extravehicular mobility unit
|
| EMWA | engineering minor work authorization
|
| ENDF | evaluated neutron data file
|
| ENG | electronystagnogram
|
| ENS | en route nuclear shuttle
|
| ENVIRON | space natural environment model
|
| EO | Earth observation
|
| EO | Earth orbit
|
| EO | Electronic Operations
|
| EO | electro-optic
|
| EO | electro-optics
|
| EO | engine-out
|
| EO | engineering order
|
| EOAS | engineering order accountability system
|
| EOC | Electro-Optical Center
|
| EOC | early operational capability
|
| EOC | edge of coverage
|
| EOC | end of contract
|
| EOC | engine order capability
|
| EOC | engine-out capability
|
| EOCM | electro-optical countermeasure
|
| EOCR | engineering order control record
|
| EOD | estimated on dock
|
| EOD | explosive ordnance disposal
|
| EODB | end of data block
|
| EODRS | Earth observation data retrieval system
|
| EOF | end of file
|
| EOG | electroculogram
|
| EOHT | external oxygen and hydrogen tank
|
| EOI | Earth orbit insertion
|
| EOL | Earth orbit launch
|
| EOL | end of life
|
| EOL | end of line
|
| EOM | Earth orbital mission
|
| EOM | Engineering Operations Manual
|
| EOM | end of message
|
| EOM | end of mission
|
| EOM | equation of motion
|
| EOMF | end of minor frame
|
| EOP | Earth and ocean physics
|
| EOP | emergency oxygen pack
|
| EOPAP | Earth and ocean physics application program
|
| EOPF | end of powered flight
|
| EOPR | engineering order purchase request
|
| EOPR | engineering order purchase requisition
|
| EOQ | economic order quantity
|
| EOQ | end of quarter
|
| EOR | Earth orbit rendezvous
|
| EOR | end of refresh
|
| EORQ | engineering order request for quotation
|
| EORSAT | electronic ocean reconstruction satellite
|
| EOS | Earth observation satellite
|
| EOS | Earth-orbit Shuttle
|
| EOS | electrophoretic separation
|
| EOS | emergency oxygen system
|
| EOS | extended operating system
|
| EOSH | electro-optical sensor hardening
|
| EOSS | Earth-orbital space station
|
| EOSS | extravehicular activity operational slide-wire system
|
| EOT | end of tape
|
| EOT | end of transmission
|
| EOTF | engineering order to follow
|
| EOTS | electro-optical threat sensor
|
| EOW | energy over weight
|
| EP | elbow pitch
|
| EP | electrical power
|
| EP | equivalent person
|
| EP | equivalent personnel
|
| EP | experiment planning
|
| EP&PS | electrical power and pyrotechnics subsystem
|
| EPA | Environmental Protection Agency
|
| EPA | engineering personnel authorization
|
| EPA | engineering project authorization
|
| EPA | estimated plan of action
|
| EPC | electronic parts control
|
| EPC | error protection code
|
| EPC | external power contractor
|
| EPCDC | electrical power conditioning, distribution, and control
|
| EPD | electrical power distribution
|
| EPD | emergency procedures document
|
| EPD&C | electrical power distribution and control
|
| EPD&CS | electrical power distribution and control subsystem
|
| EPDB | experiment power distribution box
|
| EPDC | electrical power distribution and control
|
| EPDCS | electrical power distribution and control system
|
| EPDM | ethylene propylene diene monomer
|
| EPDS | electrical power distribution system
|
| EPDU | electrical power distribution unit
|
| EPG | electrical power generator
|
| EPGCS | electrical power generation and control subsystem
|
| EPGS | electrical power generation subsystem
|
| EPIRSS | extended-performance infrared search set
|
| EPL | electrical power level
|
| EPL | electronic, electrical, and electromechanical parts list
|
| EPL | emergency power level
|
| EPL | expected power level
|
| EPM | engineering project manager
|
| EPMS | engineering performance management system
|
| EPO | element project office
|
| EPOC | External Payload Operations Center
|
| EPPSS | electrical power/pyro sequential system
|
| EPR | engine pressure ratio
|
| EPR | engineering purchase request
|
| EPRN | emergency program release notice
|
| EPROM | erasable programmable read-only memory
|
| EPS | electrical power system (subsystem)
|
| EPS | emergency power system
|
| EPS | experimental power supply
|
| EPSP | experiment power switching panel
|
| EPSTF | Electrical Power System Test Facility
|
| EPT | emergency procedure trainer
|
| EPT | environmental proof test
|
| EPT | ethylene propylene terpolymer
|
| EPT | external pipe thread
|
| EPTU | events per time unit
|
| EPWG | Environmental Projects Working Group
|
| EPWG | Experiment Planning Working Group
|
| EPY | electronic control assembly pitch and yaw
|
| EQE | event queue element
|
| ER | established reliability
|
| ER | explanation report
|
| ER | extended reliability
|
| ER&I | engine receiving and inspection
|
| ERA | electrical replaceable assembly
|
| ERA | element-relationship-attribute
|
| ERAP | Earth resources aircraft program
|
| ERB | Engineering Review Board
|
| ERBACT | ERB action item
|
| ERBM | extended-range ballistic missile
|
| ERBS | Earth radiation budget satellite
|
| ERC | Employee Recognition Center
|
| ERC | event recorder
|
| ERCAR | electrochemically regenerable CO2 absorber and
|
| ERCB | Energy Resources Control Board
|
| ERCM | engineering requirements and change management
|
| EREP | Earth resources package
|
| ERETS | Edwards rocket engine test site
|
| ERG | electroretinogram
|
| ERG | electroretinograph
|
| ERG | electroretinography
|
| ERIM | Environmental Research Institute of Michigan
|
| ERINT | exoatmospheric reentry vehicle interceptor
|
| ERIS | endoatmospheric reentry vehicle interceptor system
|
| ERIS | exoatmospheric research interceptor system
|
| ERISA | Employee Retirement Income Security Act
|
| ERM | executive review meeting
|
| ERNO | Entwicklungts Ring Nord Organization, Space Division of Eum, VFW-Fokker-Mannheim, Germany (Spacelab contractor)
|
| ERO | engineering release operation
|
| ERP | educational reimbursement program
|
| ERP | effected radiative power
|
| ERP | effective radiation power
|
| ERP | elevator reference plane
|
| ERP | eye reference point
|
| ERR | electrical resistance requirement
|
| ERR | engineering release record
|
| ERRC | expendability, recoverability, and repair capability
|
| ERRP | equipment replacement and refurbishment plan
|
| ERS | engineering release system
|
| ERS | entry and recovery simulation
|
| ERSI | elastomeric reusable surface insulation
|
| ERSIR | Earth resources Shuttle imaging radar
|
| ERTG | economic radioisotope thermoelectric generator
|
| ERTS | Earth resources technology satellite
|
| ERU | Earth rate unit (15 deg/hr)
|
| ERV | experimental reentry vehicle
|
| ERV | expiratory reserve volume
|
| ES | Earth sensor
|
| ES | Electrochemical Society
|
| ES | engineering specification
|
| ES | equal section
|
| ES | escape system
|
| ES | experiment segment
|
| ES | expert system
|
| ESA | European Space Agency
|
| ESA | engineering supply area
|
| ESA | engineering support area
|
| ESA | engineering system assembly
|
| ESA | explosive safe area (KSC)
|
| ESB | essential switching box
|
| ESCA | electron spectroscopy for chemical analysis
|
| ESCS | electronic spacecraft simulator
|
| ESD | Electronic Systems Division (NASA)
|
| ESD | Electronics Systems Division (USAF)
|
| ESD | Experiment Systems Division
|
| ESD | electrostatic discharge
|
| ESD | emergency shutdown
|
| ESDAC | European Space Data Center (Darmstadt, Germany)
|
| ESDP | external sensor data processing
|
| ESDU | event storage and distribution unit
|
| ESE | EVA support equipment
|
| ESE | electrical support equipment
|
| ESE | electronic support equipment
|
| ESE | engineering support equipment
|
| ESF | explosive safe facility
|
| ESI | electrical system integration
|
| ESM | electronic support measure
|
| ESM | energy storage module
|
| ESM | environmental systems monitor
|
| ESM | experiment support module
|
| ESMC | Eastern Space and Missile Center
|
| ESMCR | Eastern Space and Missile Center regulation
|
| ESMS | environmental and special measurements systems
|
| ESO | event sequence override
|
| ESOC | European Space Operations Center
|
| ESOW | engineering statement of work
|
| ESP | Employee Suggestion Program
|
| ESP | economic simulation program
|
| ESP | electroshock protection
|
| ESP | engineering simulator program
|
| ESP | environmental sensing platform
|
| ESP | experiment sensing platform
|
| ESPS | experiment segment pallet simulator
|
| ESR | effective sunrise
|
| ESR | engineering support request
|
| ESR | equipment status report
|
| ESRIN | European Space Research Institute
|
| ESRO | European Space Research Organization
|
| ESS | early space station
|
| ESS | effective sunset
|
| ESS | emergency survival system
|
| ESS | energy storage subsystem
|
| ESS | environmental support system
|
| ESS | equipment support section
|
| ESS | experiment subsystem simulator
|
| ESSA | Environmental Sciences Services Administration
|
| ESSA | electrically steerable spherical array
|
| ESSC | Engineering Support Services Contract
|
| EST | eastern standard time
|
| ESTA | escape system test article
|
| ESTEC | European Space Technology Center
|
| ESTF | Electronic System Test Facility (NASA)
|
| ESTL | Electronic Systems Test Laboratory
|
| ESU | eyepiece storage unit
|
| ESV | emergency shutoff valve
|
| ESVS | escape suit ventilation system
|
| ESVS | escape system ventilation system
|
| ESW | engine status word
|
| ET | edge thickness
|
| ET | elapsed time
|
| ET | element test
|
| ET | elevated temperature
|
| ET | event timer
|
| ET | external tank
|
| ETA | engineering test article
|
| ETA | estimated time of arrival
|
| ETA | estimated time to acquisition
|
| ETA | explosive transfer assembly
|
| ETA | external tank attachment
|
| ETB | equipment transfer bag
|
| ETC | Earth terrain camera
|
| ETC | Greenbelt, Maryland (STDN site)
|
| ETC | estimate to completion
|
| ETC | estimated cost to complete
|
| ETCO | equipment transfer/change order
|
| ETD | electrical terminal distributor
|
| ETD | estimated turnover date
|
| ETD | evolutionary terminal defense
|
| ETD | external tank door
|
| ETE | end to end
|
| ETEDB | external thermal environment data base
|
| ETEEM | end-to-end engagement model
|
| ETEEM | end-to-end engineering model
|
| ETF | Eglin Test Facility
|
| ETI | elapsed-time indicator
|
| ETIC | estimated time in commission
|
| ETL | Environmental Test Laboratory
|
| ETLOW | external tank lift-off weight
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| ETM | elapsed-time meter
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| ETM | engineering test model
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| ETO | Earth to orbit
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| ETO | ethylene oxide
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| ETOC | estimated time of correction
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| ETP | engineering test phase
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| ETP | environmental test plan
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| ETP | equipment test plan
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| ETPY | electronic control assembly thrust vector pitch and yaw
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| ETR | Eastern Test Range
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| ETROD | Eastern Test Range operations directive
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| ETRR | environmental test readiness review
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| ETS | electrical test set
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| ETS | energy transfer system
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| ETS | external tank system (subsystem)
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| ETSS | external tank separation subsystem
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| ETT | estimated time of track
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| ETUD | external tank umbilical disconnect
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| ETV | electrical test vehicle
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| ETVA | external tank vent arm
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| EU | electronic unit
|
| EU | engineering unit
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| EU | experimental unit
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| EURECA | European retrievable carrier
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| EUROCOMSAT | European consortium communications satellite
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| EUV | extreme ultraviolet
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| EUVE | extreme ultraviolet experiment
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| EV | earned value
|
| EV | entry vehicle
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| EV | expendable vehicle
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| EV | extravehicular
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| EV88 | Experiment Version 88 (BMC3 experiment)
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| EVA | earned-value analysis
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| EVA | extravehicular activity
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| EVAL | Earth-viewing applications laboratory
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| EVAS | extravehicular activity system
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| EVATA | extravehicular activity translational aid
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| EVC | extravehicular communications
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| EVCF | Eastern Vehicle Checkout Facility
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| EVCON | events control (controller)
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| EVCS | extravehicular communications system
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| EVCU | extravehicular communications umbilical
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| EVD | external visual display
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| EVDE | external visual display equipment
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| EVF | equipment visibility file
|
| EVLSS | extravehicular life support system
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| EVM | Earth-viewing module
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| EVMU | extravehicular mobility unit
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| EVO | engineering verification order
|
| EVS | equipment visibility system
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| EVS | extravehicular suit
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| EVSC | extravehicular suit communications
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| EVSS | extravehicular space suit
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| EVSTC | extravehicular suit telecommunications
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| EVSU | extravehicular space unit
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| EVT | extravehicular transfer
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| EW | electronic warfare
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| EWA | estimated warehouse arrival
|
| EWE | emergency window escape
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| EWM | engineering wring-out meeting
|
| EWO | engineering work order
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| EWR | engineering work request
|
| EWW | extended workweek
|
| EXC | experiment computer
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| EXCABL | expert cable (automated payload cabling system)
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| EXH | exchange hardware
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| EXMATCH | expert drawing matching system
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| EXO | experiment operator (in Spacelab)
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| EXT | experiment terminal (operator console on Spacelab)
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| EXTRAJ | ascent trajectory (design expert system)
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| eV | electron volt
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