Latest revision as of 04:49, 22 December 2024

This list contains definitions for Orbiter or important spaceflight acronyms or abbreviations, especially those appearing in MFDs and various HUD modes.

One entry in this list consists of a term with one or more definitions, like:

Term: Definition

;Term:Definition

Don't use links in the term part of a entry, please do so in the definition part, for keeping a consistent look-and-feel and don't putting to much emphasis on a single definition.

Terms without definitions will get moved to the talk page into the section "Wanted definitions". If you have multiple definitions for a term, the definition part should turn into a numbered list, like:

Term

Definition 1
Definition 2
Definition 3

;Term:
#Definition 1
#Definition 2
#Definition 3

The order of the definitions should be like that:

Orbiter HUD definitions
Orbiter MFD definitions
General Orbiter definitions
Orbiter Add-on definitions
General spaceflight definitions

If you don't agree to a ordering of definitions, please complain in the talk page about the entry.

A[edit]

ACC: Acceleration, used in Surface MFD to indicate increasing or decereasing horizontal speed of the ship in m/s²
ACT: Activate, command button in RCS attitude MFD in docking mode to activate the programmed orientation to the target dock
AgP: Argument of periapsis:The angle in the orbit from the point of the ascending node to the point of periapsis, displayed in Orbit MFD
ALT or Alt: altitude, distance from the body surface

Used in Orbit MFD when Alt mode is selected to indicate distance from the surface of the body
Used in Surface MFD to indicate altitude in km from the body surface

AN: ascending node:a vector in an orbit where the body passes from south to north of the plane of reference (i.e. ecliptic or equatorial). Shown in Align MFD and Orbit MFD as a dotted vector line connecting to a solid square on the orbit.
AOA: Angle of attack, the difference between the ship's direction of travel and the pitch of its nose

Used in Surface MFD to indicate the angle of attack

AORP: Autonomous Orbiter Rapid Prototype, a system to allow a shuttle orbiter to land without crew.
AP: Used in Surface MFD, a red rectangle with white "AP" in the altitude tape to indicate the altitude of the ship's apoapsis
ApA: apoapsis apoapsis altitude, the lowest altitude of an orbit, displayed in Orbit MFD.
ApD: apoapsis apoapsis distance
ApR: apoapsis apoapsis radius, displayed in Orbit MFD
ApT: time to apoapsis in seconds, displayed in Orbit MFD
AR

Automatic Reference, used in Align MFD, Orbit MFD as a command button for Align to select a reference body automatically based on highest gravity
Altitude Range, used to manually set the range in the altitude graph in Ascent profile MFD
acceptance review

atmo: atmosphere
ATM DATA: Atmospheric data in Surface MFD readouts
ATV

Autonomous Transfer Vehicle, an unmanned cargo spacecraft, see ATV.
Automated Transfer Vehicle[1]

AU: astronomical unit
AX: Axis, command button in RCS attitude MFD to change the selected axis beetween pitch/yaw/roll

@@ Line 27: / Line 27: @@
 #Orbiter MFD definitions
 #General Orbiter definitions
-#Orbiter [[addon]] definitions
+#Orbiter [[Add-on]] definitions
 #General spaceflight definitions
 If you don't agree to a ordering of definitions, please complain in the [[Talk:List_of_Acronyms_and_Abbreviations|talk]] page about the entry.
+==See also==
+* [[Russian glossary]]
+* [[List of Acronyms and Abbreviations/ISS|List of Acronyms and Abbreviations for the ISS]]
 ----
 {{compactTOC}}
-==A==
+=A=
-;AF:
+;ACC: Acceleration, used in [[Surface MFD]] to indicate increasing or decereasing horizontal speed of the ship in m/s<sup>2</sup>
-;AgP:[[argument of periapsis]]
+;ACT: Activate, command button in [[RCS attitude MFD]] in docking mode to activate the programmed orientation to the target dock
-;AN:[[ascending node]]
+;AgP:[[Argument of periapsis]]:The angle in the orbit from the point of the ascending node to the point of periapsis, displayed in [[Orbit MFD]]
-;ApA:[[apoapsis]] altitude
+;ALT or Alt:[[altitude]], distance from the body surface
-;ApD:[[apoapsis]] distance
+#Used in [[Orbit MFD]] when Alt mode is selected to indicate distance from the surface of the body
-;ApR:[[apoapsis]] radius
+#Used in [[Surface MFD]] to indicate altitude in km from the body surface
-;ApT:time to [[apoapsis]]
+;AN:[[ascending node]]:a vector in an orbit where the body passes from south to north of the plane of reference (i.e. ecliptic or equatorial). Shown in [[Align MFD]] and [[Orbit MFD]] as a dotted vector line connecting to a solid square on the orbit.
-;Alt:[[altitude]]
+;AOA: Angle of attack, the difference between the ship's direction of travel and the pitch of its nose
+#Used in [[Surface MFD]] to indicate the angle of attack
+;AORP:'''A'''utonomous '''O'''rbiter '''R'''apid '''P'''rototype, a system to allow a [[STS|shuttle]] orbiter to land without [[crew]].
+;AP: Used in [[Surface MFD]], a red rectangle with white "AP" in the altitude tape to indicate the altitude of the ship's apoapsis
+;ApA:[[apoapsis]] apoapsis altitude, the lowest altitude of an orbit, displayed in [[Orbit MFD]].
+;ApD:[[apoapsis]] apoapsis distance
+;ApR:[[apoapsis]] apoapsis radius, displayed in [[Orbit MFD]]
+;ApT:time to [[apoapsis]] in seconds, displayed in [[Orbit MFD]]
+;AR:
+#'''A'''utomatic '''R'''eference, used in [[Align MFD]], [[Orbit MFD]] as a command button for Align to select a reference body automatically based on highest gravity
+#'''A'''ltitude '''R'''ange, used to manually set the range in the altitude graph in [[Ascent profile MFD]]
+#'''a'''cceptance '''r'''eview
 ;atmo:[[atmosphere]]
+;ATM DATA: Atmospheric data in [[Surface MFD]] readouts
+;ATV:
+#'''A'''utonomous '''T'''ransfer '''V'''ehicle, an unmanned cargo spacecraft, see [[ATV]].
+#'''A'''utomated '''T'''ransfer '''V'''ehicle[http://www.orbiterwiki.org/wiki/ATV#The_ATV]
 ;AU:[[astronomical unit]]
-==B==
+;AX: '''Ax'''is, command button in [[RCS attitude MFD]] to change the selected axis beetween pitch/yaw/roll
-;BMW:'''B'''ate, '''M'''ueller, '''W'''hite - author team of a very famous book on astrodynamics and spaceflight (written in 1971)
-==C==
+[[#top|Back to top]]
+=B=
+;BAS: Basemode, command button to select programmed attitude (prograde, orbit normal, perpendicular in, radial down) in [[RCS attitude MFD]]
+;BMW:'''B'''ate, '''M'''ueller, '''W'''hite - authors of ''Fundamentals of Astrodynamics'' (1971)
+;BRG: '''B'''ea'''r'''in'''g''', used in the [[Horizontal Situation Indicator MFD]] to indicate the compass direction of the ILS or VOR transmitter
+[[#top|Back to top]]
+=C=
 ;CaLV:'''Ca'''rgo '''l'''aunch '''v'''ehicle, see [[Ares V]]
 ;CDI:[[course deviation indicator]]
-;CDR:commander
+;CDR:
+#commander
+#'''c'''ritical '''d'''esign '''r'''eview
 ;CEV:'''C'''rew '''e'''xpedition '''v'''ehicle, see [[CEV]]
+;CFD:computational fluid dynamics
+;CFG: command button in [[RCS attitude MFD]] to switch to configuration page
 ;CLV:'''C'''rew '''l'''aunch '''v'''ehicle, see [[Ares I]]
+;CNC: Cancel, used in [[RCS attitude MFD]] in the docking mode to cancel the docking mode program
+;COAS:'''C'''rew '''O'''ptical '''A'''lignment '''S'''ight
 ;COM:communication or communicator
+;CRS: '''C'''ou'''rs'''e, indicates the ship's course (heading) in the [[Horizontal Situation Indicator MFD]]
+;CTD:[[crash to desktop]]
 ;CTRL:Control
+;CTV:
+#'''C'''rew '''T'''ransfer '''V'''ehicle, a manned spacecraft derived from the [[ATV]], see [[CTV]]
+#'''C'''ompatibility '''T'''est '''V'''an, '''NASA'''
+;CUR: Command button in [[RCS attitude MFD]] to set the programmed attitude to the current attitude
 ;CVEL:
 #[[closing velocity]]
 #'''C'''ommon '''V'''essel '''E'''xtensions '''L'''ight, see [[CVEL]]
-==D==
+[[#top|Back to top]]
-;DN:[[descending node]]
+=D=
+;D3D9:refers to the advanced graphics client in [[Orbiter]]
+;Da: Deviation, displayed in [[RCS attitude MFD]] to indicate how many degrees the ship has to go in Roll to reach programmed attitude
+;DCK: command button in [[RCS attitude MFD]] to set the MFD into Docking mode
+;DDT&E:'''d'''esign, '''d'''evelopment, '''t'''est and '''e'''valuation
+;DEV:'''Dev'''iation, in the [[Horizontal Situation Indicator MFD]], it indicates how far the OBS is adjusted left or right of the radial
 ;DG:[[Delta-glider]]
+;DG4:Orbiter's stock '''DG'''
+;DGIII:[[DeltagliderIII]], a famous enhanced version of the [[Delta-glider]].
+;DGIV:[[DeltaGliderIV]], an improved version of the [[DeltaGliderIII]].
 ;DG-S:[[Delta-glider]] equiped with two [[scramjet|scramjets]].
-;DIV:[[divergent]], i.e. [[yaw]] [[gimbal]] mode.
 ;Dir:'''dir'''ection
 ;Dist:'''dist'''ance
-;DLng:longitude difference, as seen on the [[synchronise orbit MFD]]
+#Displayed in [[Sync MFD]], distance ship to target
-;DNP:dynamic [[pressure]]
+;DIV:[[divergent]], i.e. [[yaw]] [[gimbal]] mode.
-;DNS:atmospheric density
+;DLng:difference in longitude between ship and target, displayed in [[Sync MFD]]
-;DST or Dst:distance (to target)
+;DN:
+#'''Down''', used in [[Map MFD]] when Tracking mode is off and map zoomed in to scroll the map down so you can see farther South
+# Command button in [[RCS attitude MFD]] to change the selected modification up so you can edit it
+#[[descending node]]
+;DNP:dynamic [[pressure]], given in Pa
+#Displayed in [[Surface MFD]] to indicate atmospheric pressure
+;DNS:atmospheric density, given in kg m<sup>-3</sup>, symbol ρ
+#displayed in [[Surface MFD]]
+;DPS:'''D'''ata '''P'''rocessing '''S'''ystem. Term describing the general purpose computers and their interfaces onboard various manned spacecraft
+;Dr: Deviation, displayed in [[RCS attitude MFD]] to indicate how many degrees until the ship reaches pitch and yaw alignment with the programmed attitude
+;DSP: '''D'''i'''sp'''lay, used in [[Map MFD]] to switch between Ground Track Display and Orbital Plane Display
+;DST or Dst:
+#Distance (to target), used in the [[Horizontal Situation Indicator MFD]] to indicate distance to the selected ILS or VOR transmitter
+#Distance, used in [[Orbit MFD]] to select between Rad, ApR, PeR (distance from body center) and Alt, ApA, PeA (distance from body surface)
 ;DTe:time to [[ejection]], as seen on the [[transfer MFD]]
 ;DTi:time to intercept, as seen on the [[transfer MFD]]
-;DTmin:time of arrical difference, as seen on the [[synchronise orbit MFD]]
+;DTmin:time of arrival difference
+#Displayed in [[Sync MFD]] to indicate difference in time between ship and target passing the intersection point
 ;Dv:delta [[velocity]], as seen on the [[transfer MFD]], see also [[Delta-V]]
-==E==
-;Ecc:[[eccentricity]]
+[[#top|Back to top]]
+=E=
+;Ecc:[[eccentricity]] of orbit, displayed in [[Orbit MFD]]
 ;ECL:plane of the [[ecliptic]]
+;ECLSS:'''E'''nvironmental '''c'''ontrol and '''l'''ife '''s'''upport '''s'''ystem
+;ECSS:'''e'''uropean '''c'''ooperation for '''s'''pace '''s'''tandardization
+;EELV:Evolved Expendable Launch Vehicle
+;ELS: '''EL'''ements, custom '''S'''elect, used in [[Align MFD]] to select a custom orbital elements to which to align
+;END: command button in [[RCS attitude MFD]] to stop the programmed attitude mode
+;EQU:plane of the [[equator]]
+;EQU POS: Equatorial position, given as longitude and latitude
+#Displayed in [[Surface MFD]] given as position and rate of change
 ;ESA:[[European Space Agency]]
+;ESAS:[[w:Exploration Systems Architecture Study|Exploration Systems Architecture Study]]
 ;ET:[[external tank]]
-;EQU:plane of the [[equator]]
 ;EVA:'''E'''xtra '''v'''ehicular '''a'''ctivity, see [[EVA]]
-==F==
-;FGB:russian acronym for Functional Cargo Block. See [[FGB]]
+[[#top|Back to top]]
+=F=
+;FGB:Russian abbreviation for Functional Cargo Block. See [[FGB]]
 ;FoV:field of view, as seen in the [[general information display]]
-;FPS:[[frame rate]], as seen in the [[general information display]]
+;FPS:[[frame rate]] (frames per second), as seen in the [[general information display]]
-==G==
+;FRF:'''F'''light '''R'''eadiness '''F'''iring, a launch countdown test of the Shuttle running all except SRB ignition and lift-off.
-;G:an unit of acceleration. 1 G equals the gravity acceleration on earths surface, 9.81 m/s²
+;FRM: '''Fr'''a'''m'''e of reference, used in [[Orbit MFD]] to change the orbital display and parameters between Equatorial or Ecliptic
+[[#top|Back to top]]
+=G=
+;G or g:
+#used in [[Orbit MFD]], indicates what fraction of gravity is exerted on the ship by the reference body (0 to 1)
+#unit of acceleration. 1g equals the gravity acceleration on earths surface, 9.81 m/s²
+;GET:'''G'''round '''E'''lapsed '''T'''ime [http://history.nasa.gov/SP-4029/Apollo_00c_Introduction.htm]
 ;GL:Used often as vehicle name prefix for a [[Delta-glider]]
-;GMT:Greenwich Mean Time.See UT [http://en.wikipedia.org/wiki/Universal_Time]
+;GLOC:'''G'''ravity-induced '''L'''oss '''o'''f '''C'''onsciousness
-;GPS:'''g'''lobal '''p'''ositioning '''s'''ystem
+;GMT:Greenwich Mean Time.See [[w:Universal Time|Universal Time on Wikipedia]]
-;GS:[[ground speed]]
+;GO: '''Go''', command button in [[RCS attitude MFD]], once the desired orientation and modifications are set, to activate the program
-;GTO:'''G'''eostationary '''t'''ransfer '''o'''rbit, see [[GTO]]
+;GPDS:[[GPDS|Generic Payload Description System]]
-==H==
+;GPS:'''G'''lobal '''P'''ositioning '''S'''ystem
+;GS: [[w:Ground speed|Ground speed]]
+#Command button in [[Surface MFD]] to set the speed tape to GS
+;GTO:[[GTO|'''g'''eostationary '''t'''ransfer '''o'''rbit]]
+[[#top|Back to top]]
+=H=
 ;H:Horizon
+;HAC:[[Heading Alignment Cone]]
 ;HLLV:'''h'''eavy '''l'''ift '''l'''aunch '''v'''ehicle
-;HUD:[[heads up display]]
 ;HSI:[[horizontal situation indicator]]
 ;HST:[[Hubble Space Telescope]]
-;HTO:[[hypothetical orbit]], as seen on the [[transfer MFD]]
+;HTO:[[hypothetical transfer orbit]], as seen on the [[transfer MFD]]
-==I==
+;HUD:[[heads up display]], used in [[Docking MFD]], [[Orbit MFD]], [[Surface MFD]] to copy the current parameters to the HUD
-;IAS:indicated air speed [http://en.wikipedia.org/wiki/Indicated_air_speed]
-;IDS:[[instrument docking system]]
+[[#top|Back to top]]
+=I=
+;IAS:indicated air speed [[w:Indicated airspeed|Indicated airspeed]]
+#Command button in [[Surface MFD]] to set the speed tape to IAS
+;IDS:[[IDS|instrument docking system]], used in [[Docking MFD]]
 ;ILS:
 #[[instrument landing system]]
+#also used in [[Horizontal Situation Indicator MFD]] to indicate which runway at which Spaceport is selected by the NAV system
 #'''I'''nternational '''l'''aunch '''s'''ervices, a US-russian joint venture marketing [[Atlas]] and [[Proton]] launches
-;Inc:Inclination
+;Inc: [[Inclination]], angular difference between one orbit with respect to another, usually the ecliptic, equatorial, body orbit, or target orbit, displayed in [[Align MFD]], [[Orbit MFD]]
-;ISP:specific impulse, see [[ISP]]
+;INV: Inverse, command button in [[RCS attitude MFD]] to change the programmed attitude to the inverse (retrograde, orbit antinormal, perpendicular out, radial up)
+;ISP:[[specific impulse]]
 ;ISS:[[International Space Station]]
-==J==
-;JD:julian date
+[[#top|Back to top]]
-==K==
+=J=
+;JD:[[Julian date]]
+;JSC:  Lyndon B. '''J'''ohnson '''S'''pace '''C'''enter
+;JWST:'''J'''ames '''W'''ebb '''S'''pace '''T'''elescope
+[[#top|Back to top]]
+=K=
 ;KISS:"Keep it simple, stupid!" Famous engineering dogma.[http://en.wikipedia.org/wiki/KISS_principle]
 ;KSC:[[Kennedy Space Center]]
-==L==
-;LAN:longitude of [[ascending node]] or local-area network
+[[#top|Back to top]]
+=L=
+;LAN:
+#Longitude of the [[ascending node]], used in [[Align MFD]], [[Orbit MFD]]
+#local-area network
+;LCC:
+#'''l'''aunch '''c'''ontrol '''c'''enter
+#'''l'''ife '''c'''ycle '''c'''ost
 ;LDEF:[[Long Duration Exposure Facility]]
+;LEN: List Length
+#Command button in [[Sync MFD]] to select number of orbits to display (lines 0-18)
 ;LEO:[[Low earth orbit]]
-;LPe:longitude of [[periapsis]]
+;LH2:Liquid Hydrogen
-==M==
+;LOCV: Loss of crew and vehicle
+;LOX:Liquid Oxygen
+;LPe:longitude of [[periapsis]], displayed in [[Orbit MFD]]
+;L/R:'''L'''eft/'''R'''ight, used in [[Horizontal Situation Indicator MFD]] to switch MFD mode focus to the left or right graphic display
+[[#top|Back to top]]
+=M=
 ;m:metre
-;M:Mega (SI prefix). Occasionally mass or [[mach]] number
+;M:
+#Mega (SI prefix for 10<sup>6</sup>).
+#Mass, given in kg
+#[[mach]] number or multiples of speed of sound in a given medium
+##Used in [[Surface MFD]] ship's speed is given in mach number as well as m/s
 ;MCC:
 #'''m'''id '''c'''ourse '''c'''orrection
 #'''m'''ission '''c'''ontrol '''center'''
-;MCC-H:'''m'''ission '''c'''ontrol '''c'''enter '''h'''ouston
+;MCC-H:'''m'''ission '''c'''ontrol '''c'''enter '''H'''ouston
-;MCC-M:'''m'''ission '''c'''ontrol '''c'''enter '''m'''oscow
+;MCC-M:'''m'''ission '''c'''ontrol '''c'''enter '''M'''oscow
-;MECO:'''M'''ain '''E'''ngine '''C'''ut'''o'''ff
+;MDR:'''m'''ission '''d'''efinition '''r'''eview
-;MFD:multifunction display, see [[MFD]]
+;MECO:'''m'''ain '''e'''ngine '''c'''ut'''o'''ff
-;MJD:[[modified julian date]]
+;MET:'''M'''ission '''E'''lapsed '''T'''ime. See [[w:Mission Elapsed Time|Mission Elapsed Time on Wikipedia]].
+;MFD:'''M'''ulti'''f'''unctional '''D'''isplay, see [[MFD]]
+;MHz: '''M'''ega'''H'''er'''z''', same as the old term megacycles/second, radio and transponder frequency, used in [[COMNAV MFD]]
+;MJD:[[modified Julian date]]
+;MLP:[[Mobile Launcher Platform]]
+;MMOD:'''M'''icro'''m'''eteorites and '''o'''rbital '''d'''ebris
 ;MMU:'''m'''anned '''m'''aneuvering '''u'''nit, see [[MMU]]
-;MnA:[[mean anomaly]]
+;MnA:[[mean anomaly]], displayed in [[Orbit MFD]]
-;MnL:[[mean longitude]]
+;MnL:[[mean longitude]], displayed in [[Orbit MFD]]
+;MOD: used in [[Orbit MFD]] and [[Sync MFD]] to cycle the display between parameters only, orbital display only, or both
+;m/s:meters per second, the SI base unit of [[velocity]]
 ;MSx:Mission Specialist x
-;m/s:meters per second, the SI base unit of [[velocity]]
-==N==
+[[#top|Back to top]]
+=N=
 ;NAV:
+#Navigatonal receiver,
+##in [[COMNAV MFD]] it is used to identify up to four receivers in the stack
+##in [[Horizontal Situation Indicator MFD]], it is used to select which receiver an HSI display is tuned to
+##in [[RCS attitude MFD]] command button in Docking mode to slave one of the Nav receivers to this MFD
 #navigation
 #[[navigation aid]]
-==O==
+;NT: '''N'''o '''t'''arget, used in [[Orbit MFD]] to deselect the target
-;OAT:outside air temperature
-;Ob:obliquity of ecliptic (tilt of axis of rotation against plane of ecliptic)
+[[#top|Back to top]]
+=O=
+;OAT:outside air temperature, displayed in [[Surface MFD]] given in Kelvins (K)
+;Ob:
+#Obliquity of ecliptic (tilt of axis of rotation against plane of ecliptic)
+#Orbit, displayed in [[Sync MFD]] indicates how many orbits remaining until rendezvous
+;OB+ and OB-: '''O'''mni'''B'''earing, used to change the offset of the course arrow to left or right of the beam
 ;OBS:[[omni bearing selector]]
 ;OBT:[[orbit]], as seen on the [[orbit MFD]]
-;OMS:'''o'''rbital '''m'''aneuvering '''s'''ystem, the 'main engines' of the [[space shuttle]] orbiter
+;OMBUU: '''O'''rbiter '''M'''id'''b'''ody '''U'''mbilical '''U'''nit
-;OS:[[orbital speed]]
+;[[OMP]]:'''O'''rbiter '''M'''ultiplayer '''P'''roject, an ongoing program to create a multiplayer server in Orbiter.
-==P==
+;OMS:'''O'''rbital '''M'''aneuvering '''S'''ystem, the 'main engines' of the [[space shuttle]] orbiter
+;OS:[[w:Orbital speed|Orbital speed]]
+#Command button in [[Surface MFD]] to set the speed tape to OS
+[[#top|Back to top]]
+=P=
 ;P:position (sometimes radius) vector, as seen on the [[align orbital plane MFD]]
 ;p0:atmospheric pressure at sea level
-;PAPI:'''P'''recision '''A'''pproach '''P'''ath '''I'''ndicators, lit runway centreline.
+;PAM:'''P'''ayload '''A'''ssist '''M'''odule, a family of solid upper stages for the [[Space Shuttle]]
-;PB:
+;PAPI:'''P'''recision '''A'''pproach '''P'''ath '''I'''ndicators, lit runway centerline.
-;PeA:[[periapsis]] altitude
+;PB:[[Shuttle PB]]
-;PeD:[[periapsis]] distance
+;PDR:'''p'''reliminary '''d'''esign '''r'''eview
-;PeR:[[periapsis]] radius
+;PDRS:'''P'''ayload '''D'''eployment and '''R'''etrieval '''S'''ystem, the official name of the robot arm of the Space Shuttle
-;PG:[[prograde]]
+;PeA:[[periapsis]] altitude. Altitude of periapsis above the surface of the orbited body, used in [[Orbit MFD]]
+;PeD:[[periapsis]] distance. See PeR.
+;PeR:[[periapsis]] radius. Distance of periapsis from the center of the orbited body, used in [[Orbit MFD]]
+;PeT:time to [[periapsis]] in seconds, displayed in [[Orbit MFD]]
+;PG:
+#Page, switching displayed pages in an MFD mode, used in [[Align MFD]] and [[Ascent profile MFD]]
+#[[prograde]]
 ;PLT:Pilot
 ;PMI:'''P'''rincipal '''m'''oments of '''i'''nertia, see [[PMI]]
 ;Pos:position
-;PRJ:[[projection]], as seen on the [[orbit MFD]]
+;PRJ: Projection, used in the [[Orbit MFD]] to switch orbital display between Ecliptic, Equatorial, Ship's orbit, Target orbit
+;PRR:'''p'''reliminary '''r'''equirements '''r'''eview
 ;PSx:Payload Specialist x
-==R==
+[[#top|Back to top]]
+=Q=
+;QR: '''q'''ualification '''r'''eview
+[[#top|Back to top]]
+=R=
 ;R:
 #mean radius
 #specific gas constant
+;+R and -R:
+#Command buttons in [[RCS attitude MFD]] (R+) to add a line (pitch, yaw, roll) to the programmed attitude, or R- to remove the last line
+#Command buttons in [[Sync MFD]] to rotate intersection points
 ;r0:atmospheric density at sea level
 ;Rad:
+#Displayed in [[Orbit MFD]] when Radius mode is selected to indicate distance from the center of the body in meters
 #radial distance
 #angular unit ''radians''
-;RAnm:[[true anomaly]] of reference axis, as seen on the [[synchronise orbit MFD]]
+;RAnm:[[true anomaly]] of reference axis, displayed in [[synchronise orbit MFD]]
-;Rate:rate of change, as seen on the [[align orbital plane MFD]]
+;Rate: How fast the current orbital plane is changing, degrees per second, used in [[Align MFD]]
 ;RCS:[[reaction control system]], spacebourne orientation rocket system.
-;RInc:[[relative inclination]], as seen on the [[align orbital plane MFD]]
+;R&D:'''r'''esearch and '''d'''evelopment
-;RVel:relative [[velocity]]
+;RDT&E:'''r'''esearch, '''d'''evelopment, '''t'''esting and '''e'''valuation
+;REF: '''Reference'''
+#used in [[Align MFD]], [[Map MFD]], [[Orbit MFD]] to select a reference body.
+#'''Ref''': Reference displayed in [[Sync MFD]] to switch Reference axis
 ;RG:[[retrograde]]
+;RInc:[[relative inclination]], relative inclination between the ship and target orbits, used in [[Align MFD]] and [[Sync MFD]]
 ;RKA:Russian Space Agency
 ;RMS:'''R'''emote '''M'''anipulator '''S'''ystem
-==S==
+;RS:Russian-side, used as prefix for orientation when describing ISS components.
+;RSLS:'''R'''edundant '''s'''et '''l'''aunch '''s'''equencer, the computer systems responsible for the ignition of the SSMEs in the [[Space Shuttle]] orbiter.
+;RTFM:'''R'''ead '''t'''he '''f'''ine (or many other '''f'''-words) '''m'''anual, a typical forum answer for questions already answered extensivly in the manual.
+;RTLS:'''R'''eturn '''t'''o '''l'''aunch '''s'''ite, a [[Space Shuttle]] abort mode.
+;RTN: Return, command button in [[RCS attitude MFD]] to return the display to the Active mode page
+;RVel:relative [[velocity]]
+#Displayed in [[Sync MFD]], Relative speed between ship and target
+[[#top|Back to top]]
+=S=
 ;SAR:
 #'''S'''earch '''a'''nd '''r'''escue.
 #'''S'''yntetic '''a'''perture '''r'''adar, a [[radar]] mode used for creating navigation maps or detect slowly moving ground vehicles.
+;S/C: [[spacecraft|'''s'''pace'''c'''raft]]
+;SC< and SC>:'''SC'''an frequency up or down in the currently selected receiver, used in [[COMNAV MFD]]
+;SDK:Software Development Kit [http://en.wikipedia.org/wiki/SDK]
+;SDHLV:'''S'''huttle '''D'''erived '''H'''eavy '''L'''aunch '''V'''ehicle, see [[Ares V]]
 ;SDLV:'''S'''huttle '''D'''erived '''L'''aunch '''V'''ehicle, see [[Ares]]
-;SDHLV:'''S'''huttle '''D'''erived '''H'''eavy '''L'''aunch '''V'''ehicle, see [[Ares V]]
 ;SECO:
 #'''S'''econdary '''E'''ngine '''C'''ut'''o'''ff
 #'''S'''ustainer '''E'''ngine '''C'''ut'''o'''ff
+;SET: Set, used in [[RCS attitude MFD]] to set the desired attitude
+;SHP: Ship, used in [[Map MFD]] to indicate your ship's name, position, altitude, course of your ship
 ;Sim:
 #simulation time (in seconds), as seen in the [[general information display]]
 #a common abbreviation for "simulator"
-;SHP:[[ship]], as seen on the [[orbit MFD]]
 ;Sh-ToR:ship [[time-on-reference]], as seen on the [[synchronise orbit MFD]]
+;SI unit: The metric system of measurement, the modern name, see [[SI unit]]
+;SL+ and SL-: '''S'''e'''l'''ect, change which receiver to next or previous receiver to adjust frequency, used in [[COMNAV MFD]]
 ;SLF:shuttle landing facility, see [[Cape Canaveral]]
-;SMa:[[semi-major axis]]
+;SMa: [[semi-major axis]], used in [[Orbit MFD]]
-;SSME:Space Shuttle Main Engines [http://en.wikipedia.org/wiki/SSME_%28rocket_engine%29]
+;SMi:[[semi-minor axis]], used in [[Orbit MFD]]
-;SMi:[[semi-minor axis]]
 ;SRB:'''S'''olid '''R'''ocket '''B'''ooster [http://en.wikipedia.org/wiki/Solid_rocket_booster]
 ;SRTM:'''S'''huttle '''r'''adar '''t'''opography '''m'''ission, see [[SRTM]].
+;SSME:Space Shuttle Main Engines [http://en.wikipedia.org/wiki/SSME_%28rocket_engine%29]
 ;SSTO:[[Single_Stage_To_Orbit | Single Stage to Orbit]]
 ;STOVL:Short take-off, vertical landing. As performed by the DG on full fuel employing hover thrusters during takeoff.
-;STP:static [[pressure]]
+;STP:static [[pressure]], given in Pa
-;STS:'''s'''pace '''t'''ransportation '''s'''ystem, [[space shuttle]]
+#Displayed in [[Surface MFD]] to indicate atmospheric pressure
-==T==
+;STS:'''s'''pace '''t'''ransportation '''s'''ystem, AKA space shuttle, see [[space transportation system]]
-;Tgt:target, esp. in [[docking]] mode
+;SUS: command button in [[RCS attitude MFD]] to suspend programmed attitude temporarily
+[[#top|Back to top]]
+=T=
+;T:orbit period, measured in seconds, displayed in [[Orbit MFD]]
+;TAEM:Terminal Area Energy Management
+;TAS:true air speed [[w:True airspeed|True airspeed]]
+#Command button in [[Surface MFD]] to set the speed tape to TAS
+;TEI:'''T'''rans '''E'''arth '''I'''njection[http://en.wikipedia.org/wiki/Trans_Earth_Injection]
+;TGT:'''T'''ar'''G'''e'''T'''
+#command button used in [[Align MFD]], [[Docking MFD]], [[Map MFD]], [[Orbit MFD]], and [[Sync MFD]] to select a target
+#used in the [[Map MFD]] display to indicate target name, position, altitude of the target
 ;Tg-ToR:target [[time-on-reference]], as seen on the [[synchronise orbit MFD]]
-;T:orbit period, measured in seconds
-;TAS:true air speed [http://en.wikipedia.org/wiki/True_air_speed]
 ;TKS:russian spacecraft for the Almaz program, see [[TKS]]
+;TLA:Three letter acronym for a '''t'''hree '''l'''etter '''a'''cronym.
 ;TLE:two-line elements
 ;TLe:eject longitude, as seen on the [[transfer MFD]]
 ;TLi:intercept longitude, as seen on the [[transfer MFD]]
 ;TLI:Trans Lunar Injection
-;Tn:time to node, as seen on the [[align orbital plane MFD]]
+;Tn:'''T'''ime to '''n'''ode, used in [[Align MFD]]
 ;TOFS:tangential offset [[docking MFD]]
-;TrA:[[true anomaly]]
+;ToR: time on reference axis, displayed in [[Sync MFD]] to indicate number of seconds until ship or target passes the intersection point
-;TRK:Track ship, as displayed by [[map MFD]]
+;TrA:[[true anomaly]], displayed in [[Orbit MFD]]
-;TrL:[[true longitude]]
+;TRK:Track, used in [[map MFD]] to keep the ship centered in the map display
+;TrL:[[true longitude]], displayed in [[Orbit MFD]]
+;TRL:'''t'''echnology '''r'''eadiness '''l'''evel
 ;Ts:length of siderial day
-;Tth:predicted thrust time, as seen on the [[align orbital plane MFD]]
+;TthA: Estimated thrust time at the ascending node to align planes, used in [[Align MFD]]
+;TthD: Estimated thrust time at the descending node to align planes, used in [[Align MFD]]
 ;TVEL:tangential [[velocity]]
-==U==
+[[#top|Back to top]]
+=U=
+;UMMU:'''U'''niversal '''m'''anned '''m'''aneuvering '''u'''nit, popular add-on, see [[Universal MMU]].
+;UNKS:unknown problems, you are aware of.
+;UNK-UNKS:unknown problems, you are not aware of.
+;UP:
+#'''UP''', used in [[Map MFD]] when Track mode is off and map is zoomed in to scroll the map up to see farther North
+#Command button in [[RCS attitude MFD]] to change the selected modification up so you can edit it
 ;UT:'''u'''niversal '''t'''ime, GMT. Not to be confused with [[UTC]] (Universial Time Co-ordinated). The latter is based on atomic clocks not astronomy, hence the occasional ''leap-second'' to correct UTC to GMT.
-==V==
+[[#top|Back to top]]
+=V=
+;+V and -V: Used in [[RCS attitude MFD]] to add or subtract one degree each click the programmed attitude mode
+;VACC: Vertical acceleration, used in [[Surface MFD]] how fast rate of ascent or descent is increasing or decreasing in m/s<sup>2</sup>
 ;VASI:'''V'''isual '''A'''pproach '''S'''lope '''I'''ndicator, the glideslope lighting system ajacent to runways to guide pilots onto the correct angle of glideslope (normally 3 degrees).
 ;VC:
 #virtual cockpit
 #Visual C++, an IDE and C++ compiler by Microsoft.
-;Vel:[[velocity]]
+;Vel:[[velocity]], displayed in [[Orbit MFD]]
-;VOR:[[very high frequency omnidirectional radio]]
+;VOR:
+#[[very high frequency omnidirectional radio]]
+# used in the [[Horizontal Situation Indicator MFD]] to indicate which VOR transmitter is selected by a NAV radio, if it's selected to a VOR transmitter
+;VRR: '''V'''elocity '''R'''adial '''R'''ange, used to manually set the range in the Radial Velocity graph in [[Ascent profile MFD]]
 ;VS:vertical speed
+#Used in [[Surface MFD]] to indicate rate of ascent or descent in meters per second
+;VSA: [[Virtual Space Agency]]
+;VSI: Vertical Speed Indicator, used in [[Surface MFD]], the VS tape reading rate of ascent or descent, in m/s
 ;VTOL:'''V'''ertical '''T'''ake '''O'''ff and '''L'''anding
-==W==
+;VTR: '''V'''elocity '''T'''angential '''R'''ange, used to manually set the range in the Tangential Velocity Range graph in [[Ascent profile MFD]]
+[[#top|Back to top]]
+=W=
+;WBS:'''w'''ork '''b'''reakdown '''s'''tructure
+;WPD:'''w'''ork '''p'''ackage '''d'''escription
 ;Wrp:time acceleration factor, seen in the [[general information display]]
-==X==
+=X=
-;XPDR:[[transponder]]
+;XPDR:[[transponder]], used in [[Docking MFD]]
-==Y==
+=Y=
 ;YSC:Yokohama Science Center
-==Z==
+=Z=
-;ZM:zoom, as seen on the [[map MFD]]
+;ZM+ and ZM-: zoom,used in [[Map MFD]] to zoom the map display in and out
+[[#top|Back to top]]
 {{compactTOC}}
+[[Category: Articles]]
+[[Category:Glossary]]

Difference between revisions of "List of Acronyms and Abbreviations"

Latest revision as of 04:49, 22 December 2024

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