spore: passport
id: misse2-pc
spore_version: 0.1
status: measured
org: nasa
dataset: misse2-peace
material:
  name: "Polycarbonate"
  abbreviation: "PC"
  family: Other polymer
  category: polymers
  type: polycarbonates
tags:
  environments: [low-earth-orbit]
  stresses: [atomic-oxygen, uv, total-radiation-dose, thermal-cycling, vacuum-and-outgassing]
  applications: []
exposures:
  - environment: low Earth orbit
    platform: ISS, MISSE 2, PEC 2 tray 1 (outside the Quest airlock)
    start: 2001-08-16
    end: 2005-07-30
    duration_years: 3.95
    atomic_oxygen_fluence: {value: 8.43e21, unit: atoms/cm2}
    solar_exposure: {value: "5000-6700", unit: equivalent sun hours}
    thermal_cycling: {min_c: -30, max_c: 40, note: nominal base-plate range}
results:
  - property: atomic oxygen erosion yield
    value: 4.29e-24
    unit: cm3/atom
    lower_bound: false
sources:
  - title: Atomic Oxygen Erosion Yield Predictive Tool for Spacecraft Polymers in Low Earth Orbit
    id: NASA/TM-2008-215490 (Banks, Backus and de Groh, December 2008)
    url: https://ntrs.nasa.gov/citations/20090011780
    where: Table I; exposure details in section 2.1
license: CC-BY-4.0