Istituto di Scienza e Tecnologie dell'Informazione     
Milani A., Farnocchia D., Dimare L., Rossi A., Bernardi F. Innovative observing strategy and orbit determination for Low Earth Orbit space debris. In: Planetary and Space Science, vol. 62 (1-2) pp. 10 - 22. Elsevier, 2012.
We present the results of a large scale simulation, reproducing the behavior of a data center for the build-up and maintenance of a complete catalog of space debris in the upper part of the Low Earth Orbits (LEOs) region. The purpose is to determine the performances of a network of advanced optical sensors, through the use of the newest correlation and orbit determination algorithms. This network is foreseen for implementation in a Space Situational Awareness system, such as the future European one. The conclusion is that it is possible to use a network of optical sensors to build up a catalog containing more than 98% of the objects with perigee height between 1100 and 2000 km, which would be observable by a reference radar system selected as comparison. It is also possible to maintain such a catalog within the accuracy requirements motivated by collision avoidance, and to detect catastrophic fragmentation events. The obtained results depend upon specific assumptions on the sensor and on the software technologies.
URL: http://www.sciencedirect.com/science/article/pii/S0032063311003400
DOI: 10.1016/j.pss.2011.11.012
Subject Space Debris
Orbit determination
Space situational awareness

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