|
RRR
|
|
r
|
Eastern time zone, U.S.A.
|
|
R_sun
|
Solar
Radius
|
|
R/T
|
Real-time
|
|
RAAN
|
Right
Ascension of Ascending Node |
|
rad
|
Radian |
|
radar
|
radio detecting and ranging |
|
RAID
|
Redundant Array of Independent Drives
|
|
RAL
|
Rutherford Appleton Laboratory
|
|
RAM
|
Random
Access Memory
|
|
RAO
|
Resources Analysis Office
|
|
RB
|
Radiation
Belt Mapper |
|
RBD
|
Reliability Block Diagram
|
|
RBM
|
Radiation
Belt Mapper |
|
RCS
|
Revision Control System
|
|
RHESSI
|
Ramaty
High Energy Solar Spectroscopic Imager |
|
REV
|
Revision
|
|
REV
|
Revolution
|
|
RF
|
Radio
Frequency
|
|
RFGSE
|
RF Ground Support Equipment
|
|
RFO
|
Request For Offer
|
|
RFP
|
Request for Proposal
|
|
RGA
|
Residual Gas Analyzer
|
|
RIDS
|
Review
Item Discrepancies
|
|
RIU
|
Remote
Interface Unit
|
|
RM
|
Risk Management
|
|
RMP
|
Risk Management Plan
|
|
RMS
|
Root Mean Square
|
|
ROM
|
Read-Only
Memory |
|
ROM
|
Rough
Order of Magnitude |
|
ROSETTA
|
ESA comet probe
|
|
ROSI
|
Ratheon Optical Systems Incorporated
|
|
RR
|
Requirements Review
|
|
RSDO
|
Rapid
Spacecraft Development Office
|
|
RSN
|
Remote
Service Node |
|
RSS
|
Root Sum Square
|
|
RT
|
Remote
Terminal
|
|
RW
|
Reaction Wheel
|
|
RY
|
Real Year
|
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