Space Environment Data: GEO
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) | 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) | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GEO | 35786 | 0.2 | 0.000001 | 2.2 | 237 | 300,000,000 | 120 | 125 | 0.0001 | -180 | Geostationary orbit 35786km altitude; TID ~7.5 krad/year primarily from electrons (outer belt); proton flux low; geomagnetic field ~120 nT (Earth field attenuated); plasma environment significant (electrostatic charging concern); albedo reduced to 0.20 at GEO (sub-Earth point view smaller); no atmospheric drag; eclipse periods up to 69 min equinox; plasma-induced surface charging major threat | radiation_thermal_magnetic | 1,000,000 | 1,361 | 7,500 |
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