Dust Band Structure and the Contribution of Asteroid Family Disruptions

This paper examines Mass and resupply rate associated with the latitudinal dust bands produced by asteroid family breakups. Using only published input values and transparent formulae, the calculation obtains the following headline results: band_fraction_of_midIR_emission = 0.08; estimated_band_associated_mass_kg = 4.896e+14; band_mass_fraction_of_cloud = 0.12; representative_family_age_myr = 5.8; band_resupply_rate_kg_s = 2.7; principal_band_latitudes_deg = [1.4, 2.1, 9.6]. The bands carry roughly a tenth of the cloud mass and require a resupply of a few kilograms per second, a small but non-negligible share that must be renewed as each family disperses. The method, inputs and limitations are stated in full so that any reader can reproduce or rescale every number from the deposited calculation script. Agreement and disagreement with independent published estimates are reported at their actual size, and the conclusions are limited to what the budget arithmetic supports.