Helios

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Helios 1
Credit - ESA

Class: Solar. Nation: Germany. Agency: France, Germany.

Solar probe. Launched by the United States and the Federal Republic of Germany. Heliocentric orbit 190 days, 0.309 x 0.985 AU x 0 deg. Exploration of the interplanetary space between the earth and the sun and study of solar influences on that area.

Mass: 373 kg (822 lb).

Helios Chronology

1974 December 10 - Helios 1 - Launch Site: Cape Canaveral. Launch Complex: LC41. Launch Vehicle: Titan. Mass: 370 kg (810 lb).
Solar probe. Solar Orbit (Heliocentric). Launched by the United States and the Federal Republic of Germany. Helios A (Helios I). Heliocentric orbit 190 days, 0.309 x 0.985 AU x 0 deg. Exploration of the interplanetary space between the earth and the sun and study of solar influences on that area.

1976 January 15 - Helios 2 - Launch Site: Cape Canaveral. Launch Complex: LC41. Launch Vehicle: Titan. Mass: 376 kg (828 lb).
Solar probe. Solar Orbit (Heliocentric). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

1976 April 17 - Closest Ever Flyby of the Sun by Spacecraft (Helios 2) -

Bibliography:

McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: http://www.planet4589.org/jsr.html.
JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: http://msl.jpl.nasa.gov/home.html.
McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: http://hea-www.harvard.edu/~jcm/space/log/launch.html.

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© Mark Wade, 1997 - 2008 except where otherwise noted.