Istituto di Scienza e Tecnologie dell'Informazione     
Pardini C., Anselmo L. Impact risk repercussions on the iridium and COSMO-SkyMed constellations of two recent catastrophic collisions in space. In: EUCASS 2011 - 4th European Conference for Aero-Space Sciences - Session SI/PP "Space Debris Active Removal I" (San Pietroburgo, Russia, 4-8 Luglio 2011). Proceedings, vol. Symposium 1: System integration on aircraft and space/launch vehicles article n. 14. EUCASS, 2011.
Following the catastrophic collisional breakups of three intact spacecraft (Fengyun 1C, Cosmos 2251 and Iridium 33) occurred in low Earth orbit, a detailed analysis was carried out, with a dedicated software tool (SDIRAT), in order to evaluate the additional impact flux of cataloged objects on the satellites of two operational constellations in high inclination orbits, Iridium and COSMO-SkyMed. As of 1 May 2011, the flux increase with respect to the debris background was 160%, on average, for the Iridium satellites, distributed on six equally spaced orbit planes at 781 km, and 47% at the altitude of the COSMO-SkyMed constellation, using a single orbit plane at 623 km.
URL: http://eucass.ru/cs/upload/gF76bMq/papers/papers/849-1286-1-RV.pdf
Subject Orbital Debris
Collision Risk
Cloud Evolution
70M20 Orbital mechanics

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