ESABASE2 / COMOVA

ESABASE2/COMOVA is an application that enables the user to calculate the contamination of spacecraft surfaces in low Earth orbits. ESABASE2/COMOVA is an adaption of the existing COMOVA application, which provides the following enhancements and extensions compared to the old ESABASE contamination module:

  • Computation of contamination deposits on surfaces, including the calculation of mass transfer factors and surface temperature effects.
  • Calculation of line-of-sight obstruction or column density and resulting absorptance of radiation to the gas surrounding the spacecraft.
  • Inclusion of venting/leakage effects, using emission laws which may be different from Lamberts law.
  • Inclusion of molecular transport mechanisms (direct flux, reflected flux from other surfaces, contaminants and ambient gas).