Category. Statistic.
Launch vehicle. Black Arrow R3.
Launch date. 28 October 1971.
Launch site. Woomera LA-5B.
Ceased operations. 1996.
Owner(s). RAE.
Major contractor(s)  BAC and Marconi.
Is it still in orbit. Yes as of 2014 and will not come down until at least 2070.
Nationality(s). British (American rocket and Aussie launch site).
Launch mass. 66 kilograms (146 lb).
Satellite type. Technology Testing.
Prospero X-3 model 2012

Flight spare of the Prospero satellite in Science Museum, London.