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ACBSP Assembly Contingency Baseband Signal Processor
ACS Assembly Contingency Subsystem
A/G Air-to-Ground
AIS Automated Information System
AOS Acquisition of Signal
APMCC Attached Pressurized Module Control Center
APS Automated Payload Switch
ARC Ames Research Center
ASCII American Standard Code for Information Interchange
ASRS Automated Support Requirements System
ATV Automated Transfer Vehicle
BDCF Baseline Data Collection Facilities
CAA Controlled Access Area
CAR Computer Access Request
C & C Command and Control
CCI Command and Control Interface
CCSDS Consultative Committee for Space Data Standards
CHS Command Handler Server
CIR Committed Information Rate
CSA Canadian Space Agency
C & T Communications and Tracking
CVT Current Value Table
DBMS Database Management Systems
DFRC Dryden Flight Research Center
DFRF Dryden Flight Research Facility
DOD Department of Defense
DOMSAT Domestic Satellite
DRD Data Requirements Document
DVIS Digital Voice Intercommunications Systems
EDS Electronic Data Switch
EFN Electronic Flight Note (also known as PCFlight Note)
EGSE Experiment Ground Support Equipment
EHS Enhanced Huntsville Operation Support Center System
EMCS Enhanced Mission Communications System
ESA European Space Agency
ESR Engineering Support Room
ESTL Electronics Systems Test Laboratory
EVA Extravehicular Activity
FAS Freeway Acquisition Server
FDDI Fiber Distributed Data Interface
FDF Flight Dynamics Facility
FEG Front-End Gateway
FEL First Element Launch
FEP Front-End Processor
GA Group Administrator
GCMR Ground Configuration Message Request
GIANT Globally Interconnected Advanced Networked Telepresence
GMT Greenwich Mean Time
GN Ground Network
GRC John Glenn Research Center at Lewis Field
GSE Ground Support Equipment
GSFC Goddard Space Flight Centerv
HFM High Fidelity Mockup
HOSC Huntsville Operations Support Center
HRF Human Research Facility
HRM High Rate Multiplexer
HSG Houston Support Group
HTML Hyper Text Mark Up Language
HTV H-II Transfer Vehicle
HVoDS HOSC Voice Distribution System
H & S Health and Status
ICD Interface Control Document
IEPC International Execute Planning Center
IOS Instructor Operator Station
IP International Partner
IP Internet Protocol
IPS Integrated Planning System
IRIG Inter Range Instrumentation Group
ISS International Space Station
JIN JSC Internet Network
JSC Johnson Space Center
Kbps kilobits per second
KSA Ku-band Single Access
KSAF Ku-band Single Access Forward
KSAR Ku-band Single Access Return
KSC Kennedy Space Center
LaRC Langley Research Center
LM Lockheed Martin
LOS Loss of Signal
LSDA Life Science Data Archive
LSDS Life Sciences Data Systems
LSDS Life Sciences Data Systems
LSDSNTP Life Sciences Data System Network Time Protocol
Mbps megabits per second
MCC-H Mission Control Center - Houston
MCC-M Mission Control Center - Moscow
MDM Multiplexer Demultiplexer
MEIT Mission Element Integration Test
MET Mission Elapsed Time
METD Mission Elapse Time for the data
MIRAGE Microsystem Integrated Real-time Acquisition Ground Equipment
MMI Man Machine Interface
MMT Mission Management Team
MOW Mission Operation Wing
MSFC Marshall Space Flight Center
NACAIT Network and Communications Analysis and Integration Team
NASA National Aeronautics and Space Administration
NASCOM NASA Communications
NASDA National Space Development Agency of Japan
NCC Network Control Center
NCCDS Network Control Center Data System
NCHD Non-Critical Highly Desirable
NEN NRL Engineering Node
NGT NASA Ground Terminal
NHB NASA Handbook
NIB Non-Interference Basis
NISN NASA Integrated Services Network
NLT No later than
NMI NASA Management Instruction
NPRD Network Program Requirements Document
NRL Naval Research Laboratory
NTP Network Time Protocol
NTSC National Television Standards Committee
OCA Orbiter Communications Adapter
OCR Operations Change Request
OD Orbiter Data
OSF Office of Space Flight
PB Playback
PCC Payload Control Centers
PD Payload Developer
PDI Payload Data Interleaver
PDL Payload Data Library
PDSS Payload Data Services System
PE Payload Element
PEHG Payload Ethernet Hub/Gateway
PEP Payload Executive Processor
PES Payload Executive Software
PI Principal Investigator
PID Program Introduction Document
PIMS Payload Information Management System
PN Pseudorandom Noise
POCC Payload Operations Control Center
POD Payload Operations Director
POH Payload Operations Handbook
POIC Payload Operations Integration Center
POST Payload Operations Support Team
PPF Payload Parameter Frame
PPS Payload Planning System
PTC Payload Training Capability
RAPS Remote Area for Payload Support
RDSS Real-time Data Storage System
RPI Remote Principal Investigator
RS Russian Segment
RSA Russian Space Agency
RT real-time
RTCS Real-time Computer System
SCR Strip Chart Recorder
SDIL Software Development Integration Laboratory
SGS Space to Ground Subsystem
SLS Space and Life Sciences
SM Service Module
SMA Science Monitoring Area
SN Space Network
SRS Support Requirements System
SSA S-band Single Access
SSAF S-band Single Access Forward
SSAR S-band Single Access Return
SSCC Space Station Control Center
SSIPC Space Station Integrated Promotion Center (NASDA)
SSMTF Space Station Mock-up Training Facility
SSP Space Station Program
SSPF Space Station Processing Facility
SSTF Space Station Training Facility
STGT Second TDRSS Ground Terminal
STS Space Transportation System
TBD To Be Determined
TBS To Be Supplied
TCP Transmission Control Protocol
TDRS Tracking and Data Relay Satellite
TDRSS Tracking and Data Relay Satellite System
TDS Time Distributed System
TIPS Thermal Impulse Printing System
TPC Telemetry Preprocessing Computer
TSC Telescience Support Center
TV Television
UDP User Datagram Protocol
UDS Universal Documentation System
UF Utilization Flight
UOF User Operations Facility
UPD User Performance Data
USGS United States Ground Segment
USOC United States Operations Center
USOS United States On-orbit Segment
UTDF Universal Tracking Data Format
VHF Very High Frequency
VoIP Voice over Internet Protocol
VPN Virtual Private Network
VTR Video Tape Recorder
WAN Wide Area Network
WFF Wallops Flight Facility
WSC White Sands Complex
WSGT White Sands Ground Terminal
WSGTU White Sands Ground Terminal Upgrade
ZOE Zone of Exclusion
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