Acronyms & abbreviations - G

g gravity acceleration (at the Earth's surface = 9.8 m/sec2)
g-TiAl Gamma Titanium Aluminide
GAS Get Away Special (NASA's Small, Self-Contained Payloads programme between 1976 and 2003)
Gb Giga bit
GB Giga Byte
GBF Ground Based Facilities
Gbytes Gigabytes
GCF Granada Crystallization Facility
GDS Gas Delivery System (IMPACT part)
GENIE Ground based European Nulling Interferometer Experiment
GEO Geostationary Earth Orbit
GEOP Geostationary Orbit Phase
GESM Ground Emergency Safe Mode
GFCC Ground Facilities Control Centre
GFI Ground Fault Interrupter
GFURD Ground Facility User Requirements Document
GH General Heading
GHF Gradient Heating Furnace
Gradient Heating Facility (Japanese Research facility in Kibo) - kobairo
GHRSST-PP GODAE High Resolution SST Pilot Project
GHz GigaHertz
GII Global communicatIonnetwork Infrastructure
GIM Ground Intervention Mode
GISS Galileo Interim Support Structure
GKS Graphical Kernel System
GLAD G-Level Analysis Drawer
GLONASS GLObal Navigation Satellite System
GM Ground Model
GMPF Generic Mission Planning Facility
GMPS Generic Mission Planning System
GMPT Generic Mission Planning Tool
GMR Giant Magneto Resistance
GMSCS General Mission Support Computer System
GN2 Gaseous Nitrogen
GNSS Global Navigation Satellite System
GO General Observer
Guest Observer
GOME Global Ozone Monitoring Experiment
GP General Programme
General Purpose
GPM Global Precipitation Measurement
GPRS General Packet Radio Service
GRADFLEX GRAdient Driven Fluctuation Experiment
GRN Goods Receipt Note
GS Ground Segment
GSE Ground Support Equipment
Gmes Services Element
GSFC Goddard Space Flight Centre
GSI Ground Segment Infrastructure
GSIP Ground Segment Implementation Plan
GSITT Ground Segment Integration Test Team
GSM  Ground Segment Manager
GSMP Ground Segment Management Plan
GSOC German Space Operations Centre
GSOV Ground Segment Operational Validation
GSP General Studies Programme
GSPM Ground Segment Project Manager
GSRD Ground Segment Requirements Document
GSRqR Ground Segment Requirements Review
GSRR Ground Segment Readiness Review
Ground Segment Requirements Review
GSSAPI Generic Security Services Application Programming Interface
GSTB Galileo System Test Bed
GSTDN Ground Space-flight Tracking and Data Network
GSTP General Support Technology Programme
GTE Ground Test Equipment
GTO Geostationary Transfer Orbit
GTS General, Technical and Security services
Global Transmission Service
GU Ground Unit
GUI  Graphical User Interface
GVC Gas/Vacuum Control (IMPACT part)
GYP Gyro Package

Last update: 7 November 2008

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