  Petri Nets is very interesting tool for studying and simulating different
behaviors of information systems. It can be used in different applications
based on the appropriate class of Petri Nets whereas it is classical, colored
or timed Petri Nets. In this paper we introduce a new approach of Petri Nets
called orbital Petri Nets (OPN) for studying the orbital rotating systems
within a specific domain. The study investigated and analyzed OPN with
highlighting the problem of space debris collision problem as a case study. The
mathematical investigation results of two OPN models proved that space debris
collision problem can be prevented based on the new method of firing sequence
in OPN. By this study, new smart algorithms can be implemented and simulated by
orbital Petri Nets for mitigating the space debris collision problem as a next
work.
