Monitoring the Heavens, Today, and Tomorrow

The current Earth satellite population in LEO for all sizes is relatively well-established by a combination of deterministic and statistical means. At higher altitudes, the population of satellites with diameters of less than 1 m is not well defined. Although a few new sensors might become operational in the near- to mid-term, no major improvement in environment characterization is anticipated during this period. With the increasing deployment of micro- and pico-satellites and with the continued growth of the small debris population, a need exists for better space surveillance to support spacecraft design and operations.