NASA - IMAGE - Acronym List

C

Acronym	Meaning
C&DH	Command and Data Handling
CCSDS	Consultative Committee for Space Data Systems
CD	compact disk
CD-ROM	Compact Disk-Read Only Memory
CDF	Common Data Format
CDR	Critical Design Review, Central Data Recorder
CGS	Combined Ground System
CIDP	Central Instrument Data Processor
CLCW	Command Link Control Word
CLTU	Command Link Transfer Unit
CMD	command
CME	Coronal Mass Ejection
CMS	Command Management System
CoI	Co-Investigator
COP-1	Command Operations Protocol number 1
COTS	Commercial Off-The-Shelf
CRC	Cyclic Redundancy Code
CSS	Coarse Sun Sensor
CTT	Comapatibility Test Trailer
CUC	CCSDS Unsegmented Time Code
CVT	Current Value Table

Acronym	Meaning
dB	decibel
dBi	decibel relative to an isotropic radiator
dBm	decibel relative to one milliwatt
DC	direct current
DDD	DSN Data Delivery
DFCD	Data Format Control Document
DHDS	Digital History Data System
DMR	Detailed Mission Requirements
DPS	Digisonde Portable Sounder
DSN	Deep Space Network
DSOC	DSN Space Operations Center
DSS	Digital Sun Sensor
DTF21	Development and Test Facility 21
DVD	Digital Versatile Disk, Digital Video Disk