AC |
![](../../images/transparent.gif) |
Alternating Current |
Actr |
![](../../images/transparent.gif) |
Actuator |
Aft / AFT |
![](../../images/transparent.gif) |
Rear |
APU |
![](../../images/transparent.gif) |
Auxiliary Power Unit |
ASA / ASA 4 |
![](../../images/transparent.gif) |
Aerosurface Amplifier |
ATVC |
![](../../images/transparent.gif) |
Automatic Thrust Vector Control |
BF |
![](../../images/transparent.gif) |
Body Flap |
BFS |
![](../../images/transparent.gif) |
Backup Flight Software |
BL |
![](../../images/transparent.gif) |
Bond Line |
CSS |
![](../../images/transparent.gif) |
Control Stick Steering |
DAP |
![](../../images/transparent.gif) |
Digital Auto Pilot |
DNMODE |
![](../../images/transparent.gif) |
Down mode |
ECLSS |
![](../../images/transparent.gif) |
Environmental Control and Life Support System |
EI |
![](../../images/transparent.gif) |
Entry Interface |
EPDC |
![](../../images/transparent.gif) |
Electrical Power Distribution and Control |
FCS |
![](../../images/transparent.gif) |
Flight Control System |
FES |
![](../../images/transparent.gif) |
Flash Evaporator System |
F/min |
![](../../images/transparent.gif) |
degrees Fahrenheit per minute |
fps |
![](../../images/transparent.gif) |
Feet Per Second |
fps2 |
![](../../images/transparent.gif) |
Feet Per Second Squared |
Fus |
![](../../images/transparent.gif) |
Fuselage |
GMT |
![](../../images/transparent.gif) |
Greenwich Mean Time |
H |
![](../../images/transparent.gif) |
Altitude |
H2O |
![](../../images/transparent.gif) |
Water |
Hyd |
![](../../images/transparent.gif) |
Hydraulic |
Hz |
![](../../images/transparent.gif) |
Hertz |
IMU |
![](../../images/transparent.gif) |
Inertial Measurement System |
Inbd / INBD |
![](../../images/transparent.gif) |
Inboard |
Iso |
![](../../images/transparent.gif) |
Isolation |
KSC |
![](../../images/transparent.gif) |
Kennedy Space Center |
L |
![](../../images/transparent.gif) |
Left |
L2L |
![](../../images/transparent.gif) |
Left firing RCS jet |
L3L |
![](../../images/transparent.gif) |
Left firing RCS jet |
LH |
![](../../images/transparent.gif) |
Left Hand |
LIB |
![](../../images/transparent.gif) |
Left Inboard |
LIE |
![](../../images/transparent.gif) |
Left Inboard Elevon |
LMG |
![](../../images/transparent.gif) |
Left Main (landing) Gear |
Ln / LN |
![](../../images/transparent.gif) |
Line |
LOB |
![](../../images/transparent.gif) |
Left Outboard |
LOE |
![](../../images/transparent.gif) |
Left Outboard Elevon |
Longn |
![](../../images/transparent.gif) |
Longeron |
LOS |
![](../../images/transparent.gif) |
Loss of Signal |
L/R |
![](../../images/transparent.gif) |
Left/Right |
LT |
![](../../images/transparent.gif) |
Left |
Mach |
![](../../images/transparent.gif) |
Velocity (Mach 24 is number x speed of sound) |
MER |
![](../../images/transparent.gif) |
Mission Evaluation Room |
M-FUS |
![](../../images/transparent.gif) |
Mid Fuselage |
MLG |
![](../../images/transparent.gif) |
Main Landing Gear |
MPS |
![](../../images/transparent.gif) |
Main Propulsion System |
ms |
![](../../images/transparent.gif) |
millisecond(s) |
Msg |
![](../../images/transparent.gif) |
Message |
Nom |
![](../../images/transparent.gif) |
Nominal (normal) |
ODRC |
![](../../images/transparent.gif) |
Orbiter Data Reduction Center |
OI |
![](../../images/transparent.gif) |
Orbiter Instrumentation |
OMS |
![](../../images/transparent.gif) |
Orbital Maneuvering System |
OPS 3 |
![](../../images/transparent.gif) |
Operations software mode for entry |
OSH |
![](../../images/transparent.gif) |
Off Scale High |
OSL |
![](../../images/transparent.gif) |
Off Scale Low |
Outbd |
![](../../images/transparent.gif) |
Outboard |
P |
![](../../images/transparent.gif) |
Pressure |
PASS |
![](../../images/transparent.gif) |
Primary Avionics Software System |
PRSD |
![](../../images/transparent.gif) |
Power Reactant and Storage Distribution |
psf |
![](../../images/transparent.gif) |
Pounds per Square Foot |
psia |
![](../../images/transparent.gif) |
Pounds per Square Inch Absolute |
PVT |
![](../../images/transparent.gif) |
Pressure, Volume and Temperature |
P/Y |
![](../../images/transparent.gif) |
Pitch/Yaw |
QBAR |
![](../../images/transparent.gif) |
Dynamic Air Pressure |
R1R |
![](../../images/transparent.gif) |
Right Firing RCS jet |
R2R |
![](../../images/transparent.gif) |
Right firing RCS jet |
R3R |
![](../../images/transparent.gif) |
Right Firing RCS jet |
R4R |
![](../../images/transparent.gif) |
Right Firing RCS jet |
RCS |
![](../../images/transparent.gif) |
Reaction Control System |
Ref / REF |
![](../../images/transparent.gif) |
Reference |
Ret |
![](../../images/transparent.gif) |
Return |
RHC |
![](../../images/transparent.gif) |
Rotational Hand Controller |
RIB |
![](../../images/transparent.gif) |
Right Inboard |
ROB |
![](../../images/transparent.gif) |
Right Outboard |
RPC |
![](../../images/transparent.gif) |
Remote Power Controller |
RSB |
![](../../images/transparent.gif) |
Rudder Speed Brake |
R/T |
![](../../images/transparent.gif) |
Rock/Tilt |
secs |
![](../../images/transparent.gif) |
Seconds |
SM1 |
![](../../images/transparent.gif) |
Systems Management |
SRB |
![](../../images/transparent.gif) |
Solid Rocket Booster |
SSME |
![](../../images/transparent.gif) |
Space Shuttle Main Engine |
STS |
![](../../images/transparent.gif) |
Space Transportation System |
Sw |
![](../../images/transparent.gif) |
Switch |
Sys |
![](../../images/transparent.gif) |
System |
TDRS (E/W) |
![](../../images/transparent.gif) |
Tracking and Data Relay Satellite (East/West) |
Temp |
![](../../images/transparent.gif) |
Temperature |
TIG |
![](../../images/transparent.gif) |
Time of Ignition |
TK |
![](../../images/transparent.gif) |
Tank |
Unlk |
![](../../images/transparent.gif) |
Unlock |
Uplk / UpLK |
![](../../images/transparent.gif) |
Uplock |
Vlv(s) |
![](../../images/transparent.gif) |
Valve(s) |
WSB |
![](../../images/transparent.gif) |
Water Spray Boiler |
x1215 |
![](../../images/transparent.gif) |
Structural Location Along Fuselage |