Free

Introduction to spacecraft and space environment effects on them

Event Information

Share this event

Date and Time

Location

Location

State Library of SA, Hetzel Lecture Theatre

Institute Building

Cnr Kintore Ave & North Tce

Adelaide, SA 5000

Australia

View Map

Friends Who Are Going
Event description

Description

This free public lecture is being held in conjunction with the Mars Society Australia.

Several hundred spacecraft are in orbit around the Earth and a handful are exploring the solar system, so they have become part of everyday life in the last 50 years. The basics of spacecraft subsystems (e.g. communications, attitude control, power and thermal, sensors), orbits (geostationary (GEO), medium-earth (MEO) and low-earth (LEO)) and missions (communications, navigation, weather, remote sensing, reconnaissance) will be outlined in this talk.

Spacecraft are also immersed in a high natural radiation environment that may be detrimental to their operation. The radiation environment at GEO, MEO and low-earth LEO orbits and their considerable variability will be described. Effects on spacecraft vary widely, such as Single Event Upsets caused by high-energy protons and Deep Dielectric Discharge or Electrostatic Discharge caused by high-energy electrons. The sources of the radiation in high-speed solar wind streams, solar particle events and geomagnetic storms will be described and examples of anomalies presented.

Bio: Dave Neudegg is a Principal Space & Radio Scientist with the Space Weather Services (formerly known as the Ionospheric Prediction Service - IPS from 1947-2014), currently in the Bureau of Meteorology. He has worked in space and radio related areas for nearly 30 years including some spacecraft data analysis and payload operations with the DLR Equator-S and ESA Cluster-II, Mars Express and Double Star missions. Some of these missions suffered space environment (or 'space weather') effects. High-frequency (or short-wave) radio also involves the space environment as the radio waves refract off the ionosphere, and Dave has worked in this area with direction finding, communications and over the horizon radar. This work included studies of the polar ionosphere and it's connection to the geomagnetic and solar magnetic fields and involved a winter in Antarctica in 1992 with a vehicle traverse onto the icecap to operate a sensor array.

Share with friends

Date and Time

Location

State Library of SA, Hetzel Lecture Theatre

Institute Building

Cnr Kintore Ave & North Tce

Adelaide, SA 5000

Australia

View Map

Save This Event

Event Saved