Glossary

Netherlands Institute for Radio Astronomy

Central European Summer Time

small satellite about a liter in size

Dutch Amateur Radio Union

phenomenon that free electrons between radio source and observer slow down radio waves with lower frequencies more than waves with higher frequencies

hardware extension of computer to connect to USB bus

electroencephalography: method to measure electrical activity of the brain

Earth-Moon-Earth, bouncing radio messages via the Moon

European Conference on Amateur Radio Astronomy

planet outside our solar system orbiting around another star than the sun

General Data Protection Regulation

sudden decrease of the rotation period of pulsars

French radar system at 143.050 MHz that detects satellites and calculates their orbits (Grand Réseau Adapté à la Veille Spatiale)

High Frequency: the shortwave band, which runs from 3 to 30 MHz

Joint Institute for VLBI (Very Long Baseline Interferometry) in Europe

Dutch astronomy association for youth aged 8 to 21

Royal Netherlands Association for Meteorology and Astronomy

making a radio connection via the moon; also called Earth-Moon-Earth connection (EME)

former director's residence on ASTRON area

shift in self-awareness that astronauts experience as a result of seeing the Earth from space

call sign of CAMRAS radio amateurs in the Dwingeloo Radio Telescope

remnant of a medium-heavy star at the end of its life after a supernova explosion; also neutron star

very accurate atomic clock

Stichting Radiostraling van Zon en Melkweg, precursor of ASTRON, Netherlands Institute for Radio Astronomy

open source planetarium program for computer

electronics to send and receive at a higher or lower frequency

coordinated universal time, primary time standard, equivalent to Greenwich Mean Time within one second

VLBI Data Interchange Format, standardized VLBI raw-data format, compatible with the used recording systems of both telescopes and with the network transmission

Dutch section of the International Amateur Radio Union (IARU)

technology to moon bounce images based on artistic research with the Dwingeloo Radiotelescope by Daniela De Paulis

Very Long Baseline Interferometry, interferometry using two radio telescopes at a great distance from each other

Dutch Association of Radio Amateurs

Software-Defined Radio receiver connected to the internet, allowing many listeners to listen and tune it simultaneously