For other spacecraft named Helios, see Helios (disambiguation) § Space.
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Hélios 1
The Hélios 1B was a French military photo-reconnaissance satellite in which Italy and Spain also participated. It was launched from the Guiana Space Centre, French Guiana on 3 December 1999 at 16:22:00 UTC. The spacecraft rode aboard an Ariane 4 rocket which also carried the French military reconnaissance satellite Clementine. Due to power supply failures, it had to be left to disintegrate in 2005.
It has been replaced by Hélios 2A, launched in December 2004 on an Ariane 5 rocket.
Bibliography[]
(in French and English) , (trad. Robert J. Amral), « Helios: The Orbiting Spyglass », in Revue aerospatiale, n°118, May 1995.
Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in underline. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets.
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