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Launch Information

Launch Information

Details of the Planck launch

Planck will be launched in March 2007 by an Ariane-5 launcher together with ESA's Herschel Space Telescope (formerly called FIRST (Far Infrared and Submillimetre Telescope) observatory). Both satellites will separate shortly after launch and proceed to different orbits.

The Ariane-5 launcher will inject Planck into a transfer trajectory, and after about four to six months the satellite will reach its final orbit 1.5 million kilometres away from the Earth. The satellite will circle around a virtual point in space called the 2nd Lagrangian point of the Earth-Moon-Sun system (or L2 for short), a very good place from which to avoid the undesirable emission of heat from the Earth, the Moon and the Sun -which would cause too much interference in the measurements. As seen from L2, all these hot 'objects' are located behind the instrument.

Last Update: 1 September 2019
18-Aug-2022 04:47 UT

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https://sci.esa.int/s/wKQ7qV8

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