List of Acronyms and Abbreviations

• AF -
• AgP - argument of periapsis
• AN - ascending node
• ApD - apoasis distance
• ApR - apoasis radius
• ApT - time to apoasis
• Alt - altitude
• atmo - atmosphere
• CDI - course deviation indicator
• COM -
• CTRL - Control
• CVEL - closing velocity
• CVEL - Common Vessel Expanded Light, see CVEL
• DN - descending node
• DG - Delta-glider
• DG-S Delta-glider equiped with two scramjets.
• DIV - divergent, i.e. yaw gimbal mode.
• Dir - direction
• Dist - distance
• DLng - longitude difference, as seen on the synchronise orbit MFD
• DNP - dynamic pressure
• DNS - atmospheric density
• DST or Dst - distance (to target)
• 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
• Dv - delta velocity, as seen on the transfer MFD
• Ecc - eccentricity
• ECL - plane of the ecliptic
• ET - external tank
• EQU - plane of the equator
• FoV - field of view, as seen in the general information display
• FPS - frame rate, as seen in the general information display
• G -
• GL - Delta-glider
• GS - ground speed
• H - Horizon
• HUD - heads up display
• HSI - horizontal situation indicator
• HST - Hubble Space Telescope
• HTO - hypothetical orbit, as seen on the transfer MFD
• IAS - indicated air speed
• IDS - instrument docking system
• ILS - instrument landing system
• Inc - Inclination
• ISS - International Space Station
• JD - julian date
• KSC - Kennedy Space Center
• LAN - longitude of ascending node or local-area network
• LDEF - Long Duration Exposure Facility
• LEO - low earth orbit
• LPe - longitude of periapsis
• m - metre
• M - mass or mach number
• MECO - Main Engine Cutoff
• MFD -
• Mir - the Russian space station Mir, commonly assumed to be an acronym, but not.
• MJD - modified julian date
• MMU -
• MnA - mean anomaly
• MnL - mean longitude
• m/s - meters per second, a common measurement of velocity
• NAV -
• OAT - outside air temperature
• Ob - obliquity of ecliptic (tilt of axis of rotation against plane of ecliptic)
• OBS - omni bearing selector
• OBT - orbit, as seen on the orbit MFD
• OMS -
• OS - orbital speed
• P - radius vector, as seen on the align orbital plane MFD
• p0 - atmospheric pressure at sea level
• PAPI -
• PB -
• PeD - periapsis distance
• PeR - apoasis radius
• PG - prograde
• Pos - position
• PRJ - projection, as seen on the orbit MFD
• R - mean radius or specific gas constant
• r0 - atmospheric density at sea level
• Rad - radial distance
• RAnm - true anomaly of reference axis, as seen on the synchronise orbit MFD
• Rate - rate of change, as seen on the align orbital plane MFD
• RCS - reaction control system
• RInc - relative inclination, as seen on the align orbital plane MFD
• RVel - relative velocity
• RG - retrograde
• RMS -
• SECO - Secondary Engine Cutoff
• Sim - simulation time (in seconds), as seen in the general information display or 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
• SLF -
• SMa - semi-major axis
• SME -
• SMi - semi-minor axis
• SRB -
• STP - static pressure or Stone Temple Pilots
• STS -
• Tgt - target, esp. in docking mode
• Tg-ToR - target time-on-reference, as seen on the synchronise orbit MFD
• T - orbit period, measured in seconds
• TAS - true air speed
• TLe - eject longitude, as seen on the transfer MFD
• TLi - intercept longitude, as seen on the transfer MFD
• Tn - time to node, as seen on the align orbital plane MFD
• TrA - true anomaly
• TrL - true longitude
• Ts - length of siderial day
• Tth - predicted thrust time, as seen on the align orbital plane MFD
• TVEL - tangential velocity
• UT - universal time
• VASI -
• VC - virtual cockpit
• Vel - velocity
• VOR - very high frequency omnidirectional radio
• VS - vertical speed
• VTOL -
• Wrp - time acceleration factor, seen in the general information display
• XPDR - transponder
• ZM - zoom, as seen on the map MFD