| A |
| >>top |
| ABM |
Apogee Boost Manoeuvre |
| ACE |
Antenna Control Electronic |
| ACK |
Acknowledgement |
| ACQ |
ACQuisition (DS16, ANA, TEMP, DB) |
| ACR |
AIT Change Request |
| ACS |
Application Communication System |
| ACU |
Accelerometer Unit |
| ACU |
Adaptateur Charge Utile (= LVA) |
| AD |
Applicable Document |
| ADD |
Architectural Design Development |
| ADF |
Application Data Field |
| ADP |
Acceptance Data Package |
| ADR |
Architectural Design Review |
| AEX |
Autumnal EquinoX |
| AGC |
Automatic Gain Control |
| AI |
Action Item |
| AIT |
Assembly, Integration & Test |
| AIV |
Assembly, Integration & Verification |
| ALC |
Automatic Level Control |
| AME |
Attitude Measurement Electronics |
| AMF |
Apogee Motor Firing |
| ANA |
ANAlogue |
| AND |
Active Nutation Damping |
| AOCE |
Attitude & Orbit Control Electronics |
| AOCMS |
Attitude & Orbit Control & Measurement System |
| AOCS |
Attitude & Orbit Control Sub-system |
| AOP/SC-PL |
Announcement of Opportunity - Scientific Payload (=GERB) |
| APID |
Application Process Identifier |
| ASC |
AeroSpatiale Cannes |
| ASIC |
Application Specified Integrated Circuit |
| ASM |
Attached Synchronization Marker |
| ASW |
Application SoftWare |
| AT |
Acceptance Test |
| ATC |
Active Thermal Control |
| AWG |
American Wire Gauge |
| Az |
Azimuth |
| B |
| >>top |
| BAF |
Batiment d'Assemblage Final |
| BB |
Bread Board model |
| BCDR |
Battery Control & Discharge Regulator |
| BCE |
Battery Conditioning Equipment |
| BDR |
Baseline Design Review |
| BER |
Bit Error Rate |
| BIL |
BILevel |
| BMS |
Batteries Module Simulator |
| BOA |
Buffer Of Anomaly |
| BOL |
Beginning Of Life |
| BPSK |
Binary Phase Shift Keying |
| BS |
Battery Simulator |
| BSW |
Basic SoftWare |
| BURD |
Back-Up Raw Data |
| BW |
BandWidth |
| C |
| >>top |
| C&M |
Command & Monitoring |
| C/I |
Carrier power-to-Intermodulation power ratio |
| C/N |
Carrier power-to-Noise power ratio |
| C/No |
Carrier power-to Noise power density ratio |
| CACE |
Common Antenna Control Electronics |
| CAD |
Computer Aided Design |
| CADU |
Channel Access Data Unit |
| CAM |
Computer Aided Manufacturing |
| CATR |
Compact Antenna Test Range |
| CCDS |
Consultative Committee for the standardisation of Space Data Systems |
| CCN |
Contract Change Notice |
| CCSDS |
Consultative Committee for Space Data Systems |
| CDL |
Centre De Lancement |
| CDMS |
Central Data Management System |
| CDMU |
Control & Data Management Unit |
| CDR |
Critical Design Review |
| CE |
Conducted Emissions |
| CF |
Core Facility |
| CFRP |
Carbon Fibre Reinforced Plastic |
| CG/COG |
Centre Of Gravity |
| CI |
Configuration Item |
| CIDL |
Configuration Item Data List |
| CIL |
Critical Items List |
| CIRO |
Cold IR Optics |
| CLTU |
Command Link Transmission Unit |
| CMD |
CoMmanD |
| COC |
Certificate Of Conformance |
| CoG |
Center Of Gravity |
| COTE |
Check Out Terminal Equipment |
| CPC |
Computer Program Component |
| CPCI |
Computer Program Configuration Item |
| CODU |
Command Pulse Distribution Unit |
| CPPA |
Central Parts Procurement Agency |
| CPS |
Company Project Structure |
| CPU |
Central Processing Unit |
| CR |
Change Request |
| CRC |
Cyclic Redundancy Code |
| CRR |
Commissioning Result Review |
| CRM |
Central Reconfiguration Module |
| CS |
Conducted Susceptibility |
| CSG |
Centre Spatial Guyanais |
| CT |
Central Tube |
| CTU |
Central Terminal Unit |
| CUC |
CCSDS Unsegmented time code |
| CUT |
Computed Unit of Time (=(TBC) 0.125s) |
| CV |
Check Valve |
| CW |
Continuous Wave (single carrier) |
| D |
| >>top |
| dB |
deciBel |
| DB |
Digital Bilevel (8 bits datum acquired via DHSS bus) |
| dBM |
deciBel for Milliwatts |
| DC |
Direct Current |
| DC/DC |
Direct Current to Direct Current |
| DC/DC CV |
Direct Current to Direct Current ConVerter |
| DCM |
Data Circulation Mission |
| DCI |
Dossier de Controle d'Interfaces |
| DCP |
Data Collection Platform |
| DD |
Detailed Design |
| DDD |
Detailed Design Document |
| DCPRS |
Data Collection Platform Relay System |
| DDR |
Detailed Design Review |
| DE |
Detection Electronics |
| DH |
Data Handling |
| DHS |
Data-Handling Sub-system (equivalent DHSS) |
| DHSS |
Data Handling Sub-System (equivalent DHS) |
| DIL |
Delivery Items List |
| DMA |
Direct Memory Access |
| DNEL |
Disconnect Non Essential Load |
| DOC |
Dynamic Offset Correction (SEVIRI) |
| DOD |
Depth Of Discharge |
| DP |
Data Package |
| DPA |
Destructive Physical Analysis |
| DPP |
Data Pre-Processing |
| DR |
Digital Relay |
| DRB |
Delivery Review Board |
| DRD |
Documentation Requirement Description |
| DRL |
Documentation Requirement List |
| DS |
Digital Serial 16 bits |
| DS |
Dossier de Synthèse (Nomenclature) |
| DS8 |
Digital Serial 8 bits (8 bits datum bus)acquired via the OBDH |
| DS16 |
Digital Serial 16 bits (16 bits datum acquired via the OBDH bus) |
| DT |
Development Test |
| DUA |
Demande d'Utilisation ARIANE |
| DVM |
DeVelopment Model |
| DVT |
Design Verification Test |
| E |
| >>top |
| Eb/No |
Energy per bit over Noise density ratio |
| E/W |
East/West |
| ECMWF |
European Centre for Medium range Weather Forecasts |
| ECP |
Engineering Change Proposal |
| EDA |
Electronic Despun Antenna |
| EDAC |
Error Detection And Correction |
| EED |
Electro Explosive Device |
| EEE |
Electrical, Electronic & Electromechanical |
| EGSE |
Electrical Ground Support Equipment |
| EI |
ElevatIon |
| EIDP |
End Item Data Package |
| EIRP |
Effective Isotropically Radiated Power |
| ELT |
Emergency Locator Transmitter |
| EM |
Engineering Model |
| EMC |
ElectroMagnetic Compatibility |
| EMI |
ElectroMagnetic Interference |
| EMPL |
Extract Master Parts List (per user) |
| EOC |
End Of Charge |
| EOL |
End Of Life |
| EPC |
Electronic Power Converter |
| EPIRB |
Emergency Position Indicating Radio Beacon |
| EPS |
Electronic Power Sub-system |
| EPTATC |
Electrical ParT of Active Thermal Control |
| EQM |
Engineering & Qualification Model |
| EQX |
EQuinoX |
| ES |
Earth Sensor |
| ESA |
European Space Agency |
| ESD |
ElectroStatic Discharge |
| ESDA |
Electronically Switched Despun Antenna (equivalent EDA) |
| ESOC |
European Space Operation Centre |
| ESU |
Earth Sensor Unit |
| E/W |
East/West |
| EWS |
E/W Support |
| F |
| >>top |
| FAR |
Flight Acceptance Review |
| FCU |
Functional Control Unit |
| FCV |
Flow Control Valve |
| FDIR |
Failure Detection Isolation & Recovery |
| FE |
Front End |
| FEE |
Front End Equipment |
| FEC |
Forward Error Correction |
| FET |
Field Effect Transistor |
| FID |
Function Identifier |
| FLOPS |
FLoating Point Operations Per Second |
| FM |
Flight Model |
| FMECA |
Failure ModE & Criticality Analysis |
| FOS |
Factor Of Safety |
| FOV |
Field Of View |
| FPA |
Focal Plane Assembly |
| FPCA |
Focal Plane & Cooler Assembly |
| FPP |
Floating Point Processing |
| FR |
Final Review |
| FS |
Flight Spare |
| FTP |
File Transfer Protocol |
| G |
| >>top |
| G/S |
Ground Segment |
| G/T |
Gain over Temperature ratio = figure of merit |
| GEO |
Geostationary Earth Orbit |
| GERB |
Geostationary Earth Radiation Budget instrument |
| GHe |
Gaseous Helium |
| GMS |
Geostationary Meteorological Satellite (JAPAN) |
| GPS |
Ground Power Supply |
| GN2 |
Gaseous Nitrogen |
| GEO |
Geosynchronous Earth Orbit |
| GOES |
Geosynchronous Operational Environmental Satellite (USA) |
| GOMS |
Geostationary Operational Meteorological Satellite (UDSSR) |
| GOS |
Global Observation System (of the WWW) |
| GSE |
Ground Support Equipment |
| GSE |
Ground Segment Equipment |
| GSU |
Gauge Sensor Unit |
| GTO |
Geostationary Transfer Orbit |
| GTS |
Global Telecommunication System (of the WWW) |
| GVAR |
GOES VARiable data format |
| H |
| >>top |
| HeJ |
Helium tank support integration JIG |
| HeS |
Helium tank Support |
| H/W |
HardWare |
| HK |
House Keeping |
| HL |
High Level |
| HMU |
Harness Manufacturing Unit |
| HO |
Hand-Out |
| HP |
Harness Plate |
| HPA |
High Power Amplifier |
| HPB |
Harness Plate Bracket |
| HPTC |
High Priority TeleCommand |
| HR |
Hall de Remplissage |
| HRIT |
High Rate Image Transmission |
| HRUS |
High Rate User Station |
| HRV |
High Resolution Visible |
| HRVIS |
High Resolution VISible imaging |
| HSP |
Harness Support Plate |
| Hz |
Hertz |
| I |
| >>top |
| I/F |
InterFace |
| I/V |
current versus Voltage (for solar array characteristics) |
| IBO |
Input Back-Off |
| ICD |
Interface Control Document |
| ICD's |
Interface Control Drawings |
| ICWG |
Interface Control Working Group |
| ID |
Identifier |
| IDS's |
Interface Data Sheet |
| IF |
Intermediate Frequency |
| IFOV |
Instantaneous Field Of View |
| IMPF |
Image Processing Facility |
| INS |
INSpection |
| INSAT |
INdia weather SATellite |
| IOS |
Industrial Organisation Structure |
| IEU |
GERB Instrument Electronics Unit |
| IOU |
GERB P/L Instrument Optical Unit |
| IUH |
GERB Inter-Unit Harness |
| IPA |
IsoPropyl Alcohol |
| IPFD |
Input Power Flux Density |
| IQGSE |
Image Quality Ground Support Equipment |
| IQMT |
Image Quality Measurement Tool |
| IR |
InfraRed |
| IR |
Intermediate Review |
| IRP |
Image Rectification Process |
| ISO |
International Standards Organisation |
| ISP |
SPecific Impulse |
| ITO |
Indium-Tin-Oxide |
| ITT |
Invitation To Tender |
| ITU |
International Telecommunication Union (Geneva, CH) |
| J |
| >>top |
| J&T |
Jigs & Tools |
| JU |
Junction Unit |
| K |
| >>top |
| K |
degree Kelvin |
| kbps |
kilobits per second |
| kg |
kilogram |
| kHz |
kiloHertz |
| kIPS |
kilo Instructions Per Second |
| km |
kilometer |
| KO |
Kick-Off meeting |
| KSC |
Kennedy Space Centre |
| kW |
kiloWatt |
| Kw |
Kay word (=1024 words) |
| L |
| >>top |
| LAE |
Liquid Apogee Engine |
| LAM |
Liquid Apogee Motor |
| LAN |
Local Area Network |
| LAS |
LAM Support |
| LAT |
Lot Acceptance Test |
| LBR |
Low Bit Rate |
| LCBT |
Landmark Catalog Builder Tool |
| LCL |
Latching Current Limiters |
| LCS |
Lower Closing Support |
| LED |
Light Emitting Diode |
| LEO |
Low Earth Orbit |
| LEOO |
Low Earth Orbit Operations |
| LEOP |
Launch and Early Orbit Phase |
| LEROS |
Liquid Engine Royal Ordnance |
| LHCP |
Left Hand Circular Polarisation |
| LL |
Low Level |
| LLF |
Limit Load Factor |
| LLI |
Long Lead Item |
| LNA |
Low Noise Amplifier |
| LOL |
Limit Of Liability |
| LOS |
Line Of Sight |
| LOS |
Loss Of Signal |
| LRIT |
Low Rate Image Transmission |
| LRR |
Launch Readiness Review |
| LRUS |
Low Rate User Station |
| LS |
Least Significant |
| LSB |
Least Significant Bit or byte |
| LV |
Latch Valve |
| LVA |
Launch Vehicle Adaptor (=ACU) |
| LxWxH |
Length x Width x Height |
| M |
| >>top |
| M&C |
Monitoring & Control |
| MAND |
Micro Active Nutation Damping |
| Mbps |
Mega bits per second |
| MCC |
Mission Control Center |
| MCP |
Mission Communication Package |
| MDD |
Meteorological Data Distribution |
| MDU |
Main Detection Unit |
| MEOP |
Maximum Expected Operating Pressure |
| MEP |
Meteosat Exploitation Project |
| MGCS |
Meteosat Ground Computer System |
| MGSE |
Mechanical Ground Support Equipment |
| MHz |
MegaHertz |
| MIB |
Minimum Impulse Bit |
| MID |
Memory Identifier |
| MIDAS |
MSG Image and Data Simulator |
| MIEC |
Meteorological Information Extraction Centre |
| MINT |
Monitory Interval |
| min |
minute |
| MIPS |
Mega Instructions Per Second |
| ML |
Memory Load |
| ML-16 |
Memory Load 16 bits (sent via the OBDH bus) |
| MLI |
Multi-Layer Insulation |
| MMC |
Mission Management & Control |
| MMH |
Mono-Methyl Hydrazine |
| MMI |
MAN-Machine Interface |
| MMU |
Memory Management Unit |
| MN |
MiNutes of meeting |
| MOBS |
Meteosat second generation On Board Software (=BSW + ASW) |
| MOC |
Mission Operatios Centre |
| MON |
Monowide Of Nitrogen |
| MON-1 |
Nitrogen-Tetroxide 1% NO |
| MON-3 |
Nitrogen-Tetroxide 3% NO |
| MOP |
Meteosat Operational |
| MoS |
Margin of Safety |
| MPE |
Meteorological Product Extraction |
| MPEF |
Meteorological Product Extraction Facility |
| MPL |
Master Parts List |
| MRB |
Material Review Board |
| MRD |
Mission Requirement Document = ITT annexes |
| MRF |
Monitoring & Reconfiguration Function |
| MRR |
Manufacturing Readiness Review |
| MS |
Most Significant |
| MSB |
Most Significant Bit or Byte |
| MSG |
Meteosat Second Generation |
| MTD |
Mechanical & Thermal Demmy |
| MTF |
Modulation Transfer Function |
| MTP |
Meteosat Transition Program |
| MTPA |
MOP Toroidal Pattern Antenna |
| N |
| >>top |
| N |
North |
| N.A. |
Not Applicable |
| N.C. |
Non Conformance |
| N.F. |
Natural Finish |
| N/S |
North/South |
| N204 |
Nitrogen Tetroxide |
| NASCAP |
NAsa Spacecraft Charging Analyser Program |
| NCR |
Non Conformance Report |
| NEdR |
Noise Equivalent differential Radiance |
| NEdT |
Noise Equivalent differential Temperature |
| NiCd |
Nickel/Cadmium |
| NIR |
Near InfraRed |
| NOAA |
National Oceanic & Atmospheric Administration (USA) |
| NOM |
NOMinal |
| NRD |
Nominal Raw Data |
| NRZ |
Non Return to Zero |
| NSS |
N/S thruster Support |
| NTBT |
Not To Be Tracked |
| NVLM |
Non Volatile Local Memory |
| NVR |
Non Volatile Residuals |
| O |
| >>top |
| OBDH |
On Board Data Handling (equivalent DHS or DHSS) |
| OBO |
Output Back Off |
| OBT |
On-Board Time |
| OCOE |
Overall Check Out Equipment |
| OGSE |
Optical Ground Support Equipment |
| OMUX |
Output MultipleXer |
| OS |
Operating System |
| OSR |
Optical Solar Reflector |
| P |
| >>top |
| P/F |
PlatForm |
| P/L |
PayLoad |
| P/ST |
Primary Structure |
| PA |
Product Assurance |
| PACT |
Power Augmented Catalytic Thruster |
| PAD |
Parts Approval Document |
| PAPL |
Program Authorised Parts List |
| PAT |
Performance Analysis Tool |
| PCB |
Parts Control Board |
| PCDU |
Power Conditioning & Distribution Unit |
| PCM |
Pulse Code Modulation |
| PCU |
Power Control Unit |
| PCU UTE |
Power Control Unit - Unit Tester Equipment |
| PDA |
Percent Defective Allowable |
| PDR |
Preliminary Design Review |
| PDU |
Power Distribution Unit |
| PFL |
Probability of Frame Loss |
| PFM |
Proto Flight Model |
| PGS |
Primary Ground Station |
| PID |
Process Identification Document |
| PIND |
Particle Impact Noise Detection |
| PLSAP |
Post Launch Support Activities Plan |
| PM |
Phase Modulation |
| PM |
Progress Meeting |
| PMD |
Propellant Management Device |
| PMP |
Parts, Materials & Processes |
| PMP |
Project Management Plan |
| PND |
Passive Nutation Damper |
| PO |
Purchase Order |
| PPL |
Preferred Parts List |
| PR |
Preliminary Review |
| PR |
Project Report |
| PROP |
PROPulsion |
| PRU |
Pyro Release Unit |
| PS |
Pressure Switch |
| PS |
Probability of Success |
| PSK |
Phase Shift Keying |
| PSS |
Procedures, Specifications and Standards |
| PT |
Pressure Transducer |
| PTCH |
Passive Thermal Control Hardware |
| PU |
Preamplifier Unit |
| PUS |
Packet Utilisation Standard |
| Q |
| >>top |
| QA |
Quality Assurance |
| QM |
Qualification Model |
| QOE |
Queue Of Events |
| QPL |
Qualified Parts List |
| QPSK |
Quadratic Phase Shift Keying |
| QSL |
Quasi Static Loads |
| QR |
Qualification Review |
| QRB |
Qualification Review Board |
| QRR |
Qualification Results Review |
| QT |
Qualification Test |
| R |
| >>top |
| RAB |
Radio Astronomy Band |
| RAM |
Random Access Memory |
| RC |
Remote Console |
| RCC |
Rescue Coordination Centre (within S&R) |
| RCS |
Reaction Control System |
| RCT |
Reaction Control Thruster |
| RD |
Raw Data |
| RD |
Reference Document |
| RDM |
Raw Data Modulator |
| RDO |
Raw Data Off |
| RDS |
Raw Data Stream |
| RE |
Radiated Emission |
| RF |
Radio Frequency |
| RFAM |
Request For Approval Material |
| RFAP |
Request For Approval Process |
| RFI |
Radio Frequency Interference |
| RFQ |
Request For Quotation |
| RFW |
Request For Waiver |
| RH |
Relative Humidity |
| RHCP |
Right Hand Circular Polarization |
| RID |
Review Item Disposition |
| RL |
Register Load |
| RLA |
Register Load Address |
| RMS |
Root Mean Square |
| ROD |
Review Of Design |
| ROM |
Read Only Memory |
| ROM |
Rough Order of Magnitude |
| rpm |
remote per minute |
| RS |
Reed Solomon |
| RS |
Radiated Susceptibility |
| RT |
Reference Temperature |
| RTU |
Remote Terminal Unit |
| Rx |
Receive |
| S |
| >>top |
| S |
South |
| SAA |
Solar Aspect Angle |
| S or sec |
Second |
| S&R |
Search & Rescue |
| S/A |
Solar Array |
| S/C |
SpaceCraft |
| S-B |
S-Band |
| S/N |
Signal to Noise ratio |
| S/ST |
Secondary Structure |
| S/S |
Sub-System |
| S3R |
Sequential Switching Shunt Regulator |
| SA |
Solar Array |
| SAA |
Solar Array Angle |
| SARSAT |
Search And Rescue Satellite Aided Tracking |
| SAP |
Solar Array Panel |
| SAS |
Solar Array Support |
| SAS |
Solar Array Simulator |
| SCA's |
Solar Cell Assembly |
| SCC |
Standard Cubic Centimetre |
| SCE |
Scan Control Electronics |
| SCOE |
System Check-Out Equipment |
| SD |
Sampling Distance |
| SDU |
Signal Distribution Unit |
| SEB |
Single Event Burn-out |
| SEL |
Single Event Latch-up |
| SEU |
Single Event Upset |
| SEVIRI |
Spinning Enhanced Visible InfraRed Imager |
| SID |
Structure Identifier |
| SIFA |
Satellite InterFace Adaptor |
| SIM |
SIMilarity |
| SK |
Station Keeping |
| SKM |
Station Keeping Manoeuvre |
| SLI |
Simple Layer Insulation |
| SOC |
Science Operations Centre |
| SOIRD |
Spacecraft Operations Interface Requirements Document |
| SOL |
Start Of Line |
| SOR |
Start Of Read-out |
| SOW |
Statement Of Work |
| SP |
Source Packet |
| SP-L |
Split Phase-L |
| SP4T |
Single Port 4 Throw |
| SPE |
SPEcification |
| SPF |
Single Point Failure |
| SPMP |
Software Project Management Plan |
| SR |
Software Requirement |
| SRB |
Software Requirement Board |
| SRD |
Software Requirement Document |
| SRD |
System Requirement Document |
| SS |
Summer Solstice |
| SSM |
Secondary Surface Mirror |
| SSP |
Satellite Synchronisation Pulse |
| SSP |
Sub-Satellite Point |
| SSPA |
Solid State Power Amplifier |
| SSS |
Solar Section Simulators |
| SSU |
Sun Sensor Unit |
| SSVT |
Satellite Simulator Validation Tests |
| STE |
Special Test Equipment |
| STM |
Structural & Thermal Model |
| SUM |
Software User Manuel |
| SV |
Solenoïd Valve |
| SVT |
System Validation Test |
| SW |
SoftWare |
| SWL |
Safe Working Load |
| SWRU |
SoftWare Replacable Unit |
| T |
| >>top |
| TBC |
To Be Confirmed |
| TBCp |
To Be Completed |
| TBD |
To Be Defined |
| TBS |
To Be Specified |
| TBSs |
To Be Substituted |
| TC |
TeleCommand |
| TC |
S/S Thermal Control Sub-System |
| TE |
Test Equipment |
| TEMP |
TEMPerature (8 bits datum acquired via the OBDH) |
| TF |
Transfer Frame |
| TGSE |
Tanking Ground Support Equipment |
| TID |
Task Ientifier |
| TIR |
Thermal InfraRed channel |
| TJU |
Test Junction Unit |
| TM |
TeleMetry |
| TM |
TeleMeasure |
| TM/TC |
TeleMetry & TeleCommand |
| TO or T/O |
Transfer Orbit |
| TPA |
Toroidal Pattern Antenna |
| TRB |
Test Review Board |
| TRF |
Thermal Regulation Function |
| TRR |
Test Readiness Review |
| TRS |
Test Requirements Sheet (derived from spec.) |
| TSA |
Telescope Sub-Assembly |
| TT&C |
Telemetry, Tracking & Command |
| TV |
Thermal Vacuum |
| Tx |
Transmitter |
| U |
| >>top |
| UHF |
Ultra-High Frequency |
| UJU |
Umbilical Junction Unit |
| UPL |
User Parts List |
| UPS |
Unified Propulsion System |
| URD |
User Requirement Document |
| UUT |
Unity Under Test |
| UT |
Unit Tester |
| UT |
Universal Time |
| UTC |
Universal Time Coordinated |
| V |
| >>top |
| VC |
Virtual Channel |
| VCA |
Virtual Channel Assembly |
| VDCU |
Virtual Channel Data Unit |
| VDE |
Valve Drive Electronics |
| VEX |
Vernal EquinoX |
| VIRI |
Visible & InfraRed Imager |
| VIS |
VISible |
| VNIR |
Visible & Near InfraRed |
| VPA |
"Vital" Parameters Area |
| VPD |
Variable Power Divider |
| VSWR |
Voltage Standing Wave Ratio |
| W |
| >>top |
| W/O |
WithOut |
| WAF |
Wobble Amplification Factor |
| WBS |
Work Breakdown Structure |
| WCA |
Worst CAse |
| WEFAX |
WEather FAcsimile broadcast |
| WMO |
World Meteorological Organisation |
| 4WPD |
4 Way Power Divider |
| 16WPD |
16 Way Power Divider |
| WP |
Work Package |
| WPD |
Work Package Description |
| WS |
Winter Solstice |
| WV |
Water Vapour |
| WWW |
World Weather Watch |
| X |
| >>top |
| XOIRD |
MSG Operations Interface Requirements Document |
| Z |
| >>top |
| ZL |
Zone de Lancement |
