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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 OBS

Mission: Space surveillance is a critical part of USSPACECOM's mission and involves detecting, tracking, cataloging and identifying man-made objects orbiting Earth, i.e. active/inactive satellites, spent rocket bodies, or fragmentation debris. Space surveillance accomplishes the following: Predict when and where a decaying space object will re-enter the Earth's atmosphere; Prevent a returning space object, which to radar looks like a missile, from triggering a false alarm in missile-attack warning sensors of the U.S. and other countries; Chart the present position of space objects and plot their anticipated orbital paths; Detect new man-made objects in space; Produce a running catalog of man-made space objects; Determine which country owns a re-entering space object; Inform NASA whether or not objects may interfere with the space shuttle and Russian Mir space station orbits.  2, fiche 1, Anglais, - Space%20Surveillance%20Network

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 OBS

Depuis plusieurs décennies, les États-Unis disposent d'un réseau de surveillance spatiale (Space Surveillance Network (SSN), contrôlé par le United States Space Command) qui leur permet de repérer, de suivre, de cataloguer et d'identifier tous les objets de plus de 10 cm qui se trouvent en orbite terrestre, en s'intéressant plus particulièrement aux satellites opérationnels.  2, fiche 1, Français, - Space%20Surveillance%20Network

Fiche 1,  Justifications,  Espagnol