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- W1601783509 abstract "Orbital debris mitigation measures have been developed to reduce the growth of the debris population. A major component in debris mitigation is postmission disposal (PMD). The key PMD element for low Earth orbit (LEO – the region below 2000-km altitude) satellites is the 25-year rule. It is intended to limit the long-term presence of rocket bodies (R/Bs) and spacecraft (S/C) as well as mission-related debris in the environment. The effectiveness of PMD has been demonstrated and documented since mitigation measures were developed in the 1990s. This article provides an update, based on the current environment, using the NASA orbital debris evolutionary model – LEGEND (Low Earth orbit-to-Geosynchronous orbit ENvironment Debris model). This model was developed by the NASA Orbital Debris Program Office at JSC, and the PMD study was completed in 2012. The study focused on the ≥10 cm population in LEO. The historical simulation spanned the years 1957 through 2011 and followed the recorded launches and known breakup events. The simulation was projected 200 years into the future, with launch traffic from a span of 8 years, 2004–2011, repeated during the projection period. An 8-year mission lifetime was assumed for future S/C. No station-keeping or collision-avoidance maneuvers were implemented, and only objects 10 cm and larger were included in collision consideration. Additionally, no explosions were allowed for R/Bs and S/C launched after 2011. The 25-year PMD rule compliance rates were set at 0 percent, 10 percent, 50 percent, 75 percent, and 95 percent, respectively, for the five study scenarios." @default.
- W1601783509 created "2016-06-24" @default.
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- W1601783509 date "2014-01-01" @default.
- W1601783509 modified "2023-09-27" @default.
- W1601783509 title "Effectiveness of Satellite Postmission Disposal to Limit Orbital Debris Population Growth in Low Earth Orbit" @default.
- W1601783509 hasPublicationYear "2014" @default.
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