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PAMELA PROJECT - Mission Print

The Pamela Instrument is installed on the up-ward side of the Resurs-DK1 satellite and has been launched the 15th of June 2006 from the launch site of Bajkonour in Kazakhstan by a rocket Soyuz.
The satellite is travelling around the Earth along an elliptical orbit with an upward orientation, at an altitude ranging between 350 - 610 Km with an inclination of 70.0 °. In September 2010 the orbit was changed to a nearby circular one, at an altitude of ≅ 570 km, and it has not changed since then.

The experiment is still operating, daily transmitting about 15 GB of data.


The in-flight PAMELA instrument performance are:


 Particle

 Energy Range 

 Antiproton spectrum  60 MeV - 180 GeV
 Positron fraction  200 MeV – 300 GeV
 Electron spectrum  200 MeV – 625 GeV
 electron + positron  up to 1 TeV
 Proton spectrum  400 MV – 1.2 TV
 Helium spectrum  700 MV – 1.2 TV
 Light nuclei (up to C)  up to 150 GeV/n
 Light isotopes D
 Light isotopes 3He
 100 MeV/n – 600 MeV/n
 100 MeV/n – 900 MeV/n
 Antinuclei search (antiHe/He)  4.7 x 10-7


The mission scientific objectives are:

  • To search for
    • Structures in cosmic ray spectra from e.g. dark matter or new astrophysical sources
    • New form of matter, e.g. strangelets
    • Antinuclei with a anti-He/He sensitivity of 10−7
  • To study
    • Cosmic-ray acceleration and propagation mechanisms
    • Solar modulation effects
    • Solar flares emissions
    • Particles in the Earth’s magnetosphere

  

Cosmic ray particle propagation
 

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Edited by Vincenzo Buttaro