diff --git a/src/Glossary.tex b/src/Glossary.tex
index 91e15f5..35f88f5 100644
--- a/src/Glossary.tex
+++ b/src/Glossary.tex
@@ -146,6 +146,23 @@
 \newacronym[description={distributed control system.}]{DCS}{DCS}{distributed control system}
 \newacronym[description={Portable Network Graphics.}]{PNG}{PNG}{Portable Network Graphics}
 \newacronym[description={Comma Separated Value.}]{CSV}{CSV}{Comma Separated Value}
+\newacronym[description={Network Time Protocol.}]{NTP}{NTP}{Network Time Protocol}
+\newacronym[description={Internet Protocol.}]{IP}{IP}{Internet Protocol}
+\newacronym[description={International Space Station.}]{ISS}{ISS}{International Space Station}
+\newacronym[description={Low Earth Orbit.}]{LEO}{LEO}{Low Earth Orbit}
+\newacronym[description={Geostationary orbit.}]{GEO}{GEO}{Geostationary orbit}
+\newacronym[description={High Earth orbit.}]{HEO}{HEO}{High Earth orbit}
+\newacronym[description={Medium Earth orbit.}]{MEO}{MEO}{Medium Earth orbit}
+\newacronym[description={Geosynchronous orbit.}]{GSO}{GSO}{Geosynchronous orbit}
+\newacronym[description={Printed circuit coard.}]{PCB}{PCB}{Printed Circuit Board}
+\newacronym[description={Hardware description language.}]{HDL}{HDL}{Hardware description lanuage}
+\newacronym[description={Video for Linux v2.}]{V4L2}{V4L2}{Video for Linux v2}
+\newacronym[description={Berkeley Software Distribution.}]{BSD}{BSD}{Berkeley Software Distribution}
+\newacronym[description={Software development kit.}]{SDK}{SDK}{Software development kit}
+\newacronym[description={Mobile Industry Processor Interface.}]{MIPI}{MIPI}{Mobile Industry Processor Interface}
+\newacronym[description={All Sky Monitor.}]{ASM}{ASM}{All Sky Monitor}
+\newacronym[description={Pan-tilt-zoom.}]{PTZ}{PTZ}{Pan-tilt-zoom}
+\newacronym[description={Pulse per second.}]{PPS}{PPS}{Pulse per second}
 
 
 %%%%%%%%%%%
@@ -392,32 +409,23 @@
 % Source Extractor
 % Watney
 % PiCamera
-% BSD
 % Unix
-% SDK
 % IMX174
 % OpenCV
-% MIPI
 % f-stop etc.
 % KStars
 % ekos
 % gphoto
 % distributions
 % stphot
-% ASM
 % allsky
-% V4L
 % Pi/Raspberry Pi
 % appropriate technology
 % Lagrange point
-% LEO, GEO etc
-% PCB
-% HDL
 % constellations
 % fork
 % port
 % hamlib
-% PTZ
 % pier
 % Celestron
 % iOptron
@@ -427,13 +435,9 @@
 % EQ equitorial
 % fork software, fork mount
 % firmware
-% ISS
 % GOTO
 % sidereal
 % slew
 % sky chart
-% PPS (gps)
 % gpsd
 % List of Software ?
-% NTP
-% IP