Space Environment Data: SSO
Orbital environment parameters for spacecraft and satellite design — radiation doses, particle fluxes, atomic oxygen, neutral density, debris/MMOD flux, thermal environment, and geomagnetic field by orbit type and altitude
| orbit type | altitude km | albedo factor (dimensionless) | atomic oxygen flux atoms per cm2 per s (atoms/cm2/s) | debris flux per m2 per year gt 1cm (impacts/m2/year) | drag coefficient typical (dimensionless) | earth IR W per m2 (W/m2) | electron flux per cm2 per s (particles/cm2/s) | geomagnetic field nT (nT) | max surface temp C sunlit (C) | micrometeoroid flux per m2 per year (impacts/m2/year) | min surface temp C eclipse (C) | neutral density per cm3 (particles/cm3) | notes | parameter type | proton flux per cm2 per s (particles/cm2/s) | solar constant W per m2 (W/m2) | total ionizing dose rad per year (rad/year) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SSO | 800 | 0.3 | 5,000,000,000,000 | 0.03 | 2.2 | 237 | 50,000,000 | 42,000 | 125 | 0.0001 | -175 | 200,000 | 800km SSO (sun-synchronous orbit) typical EO satellite altitude, ~98 deg inclination; TID ~10 krad/year behind 100 mil Al; SAA proton flux elevates TID; polar passage adds trapped particle dose; debris flux 0.03/m2/yr highest due to debris concentration 700-900km band; neutral density ~2e5/cm3 per NRLMSISE-00 solar moderate; SSO constant beta angle gives higher hot case due to solar illumination fraction | radiation_atmosphere_thermal | 500,000,000 | 1,361 | 10,000 |
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